https://wiki.opensourceecology.org/index.php?action=history&feed=atom&title=TPU 2026-04-08T07:17:27Z Revision history for this page on the wiki MediaWiki 1.39.13 https://wiki.opensourceecology.org/index.php?title=TPU&diff=312017&oldid=prev 2025-09-23T17:52:18Z

<p><span dir="auto"><span class="autocomment">Pellets &amp; Regrind</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:52, 23 September 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l20">Line 20:</td> <td colspan="2" class="diff-lineno">Line 20:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Pellets &amp; Regrind==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Pellets &amp; Regrind==</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*30 cent/lb ether base high quality, 40T/mo MX [https://www.recycle.net/cgi-bin/exlist.cgi?id=LA1383506]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*<ins style="font-weight: bold; text-decoration: none;">{{Check}}</ins>30 cent/lb ether base high quality, 40T/mo MX [https://www.recycle.net/cgi-bin/exlist.cgi?id=LA1383506]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*{{check}}$1.85/lb, 45 cents, 30 cents, 14 cents - thousands of lbs -  [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-1405#listings]. It appears that sub-50 cents is available in abundance.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*{{check}}$1.85/lb, 45 cents, 30 cents, 14 cents - thousands of lbs -  [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-1405#listings]. It appears that sub-50 cents is available in abundance.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=TPU&diff=312016&oldid=prev 2025-09-23T17:51:57Z

<p><span dir="auto"><span class="autocomment">Sourcing</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:51, 23 September 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l20">Line 20:</td> <td colspan="2" class="diff-lineno">Line 20:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Pellets &amp; Regrind==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Pellets &amp; Regrind==</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">*30 cent/lb ether base high quality, 40T/mo MX [https://www.recycle.net/cgi-bin/exlist.cgi?id=LA1383506]</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*{{check}}$1.85/lb, 45 cents, 30 cents, 14 cents - thousands of lbs -  [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-1405#listings]. It appears that sub-50 cents is available in abundance.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*{{check}}$1.85/lb, 45 cents, 30 cents, 14 cents - thousands of lbs -  [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-1405#listings]. It appears that sub-50 cents is available in abundance.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=TPU&diff=310652&oldid=prev 2025-08-17T22:19:27Z

<p><span dir="auto"><span class="autocomment">Pellets &amp; Regrind</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 22:19, 17 August 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l20">Line 20:</td> <td colspan="2" class="diff-lineno">Line 20:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Pellets &amp; Regrind==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Pellets &amp; Regrind==</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*{{check}}$1.85/lb, 45 cents, 30 cents, 14 cents - thousands of lbs -  [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-1405#listings]. It appears that sub-<del style="font-weight: bold; text-decoration: none;">$1 </del>is available in abundance.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*{{check}}$1.85/lb, 45 cents, 30 cents, 14 cents - thousands of lbs -  [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-1405#listings]. It appears that sub-<ins style="font-weight: bold; text-decoration: none;">50 cents </ins>is available in abundance.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*TPU pellets - $2.8/kg -[https://www.alibaba.com/product-detail/Engineering-plastic-transparent-TPU-granules-pellets_60814273971.html?spm=a2700.7735675.normal_offer.d_title.3efe8025MBept1&amp;s=p&amp;fullFirstScreen=true]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*TPU pellets - $2.8/kg -[https://www.alibaba.com/product-detail/Engineering-plastic-transparent-TPU-granules-pellets_60814273971.html?spm=a2700.7735675.normal_offer.d_title.3efe8025MBept1&amp;s=p&amp;fullFirstScreen=true]</div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=TPU&diff=310638&oldid=prev 2025-08-17T22:03:49Z

<p><span dir="auto"><span class="autocomment">Pellets &amp; Regrind</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 22:03, 17 August 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l20">Line 20:</td> <td colspan="2" class="diff-lineno">Line 20:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Pellets &amp; Regrind==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Pellets &amp; Regrind==</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*{{check}}$1.85/lb, 45 cents, 30 cents, 14 cents - thousands of lbs -  [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-1405#listings]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*{{check}}$1.85/lb, 45 cents, 30 cents, 14 cents - thousands of lbs -  [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-1405#listings]<ins style="font-weight: bold; text-decoration: none;">. It appears that sub-$1 is available in abundance.</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*TPU pellets - $2.8/kg -[https://www.alibaba.com/product-detail/Engineering-plastic-transparent-TPU-granules-pellets_60814273971.html?spm=a2700.7735675.normal_offer.d_title.3efe8025MBept1&amp;s=p&amp;fullFirstScreen=true]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*TPU pellets - $2.8/kg -[https://www.alibaba.com/product-detail/Engineering-plastic-transparent-TPU-granules-pellets_60814273971.html?spm=a2700.7735675.normal_offer.d_title.3efe8025MBept1&amp;s=p&amp;fullFirstScreen=true]</div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=TPU&diff=310637&oldid=prev 2025-08-17T21:54:10Z

<p><span dir="auto"><span class="autocomment">Pellets &amp; Regrind</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 21:54, 17 August 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l20">Line 20:</td> <td colspan="2" class="diff-lineno">Line 20:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Pellets &amp; Regrind==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Pellets &amp; Regrind==</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*{{check}}$1.85/lb, 45 cents, <del style="font-weight: bold; text-decoration: none;">18 </del>cents -  [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-1405#listings]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*{{check}}$1.85/lb, 45 cents, <ins style="font-weight: bold; text-decoration: none;">30 </ins>cents<ins style="font-weight: bold; text-decoration: none;">, 14 cents - thousands of lbs </ins>-  [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-1405#listings]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*TPU pellets - $2.8/kg -[https://www.alibaba.com/product-detail/Engineering-plastic-transparent-TPU-granules-pellets_60814273971.html?spm=a2700.7735675.normal_offer.d_title.3efe8025MBept1&amp;s=p&amp;fullFirstScreen=true]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*TPU pellets - $2.8/kg -[https://www.alibaba.com/product-detail/Engineering-plastic-transparent-TPU-granules-pellets_60814273971.html?spm=a2700.7735675.normal_offer.d_title.3efe8025MBept1&amp;s=p&amp;fullFirstScreen=true]</div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=TPU&diff=310636&oldid=prev 2025-08-17T21:53:24Z

<p><span dir="auto"><span class="autocomment">Pellets &amp; Regrind</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 21:53, 17 August 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l20">Line 20:</td> <td colspan="2" class="diff-lineno">Line 20:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Pellets &amp; Regrind==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Pellets &amp; Regrind==</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*$1.85/lb [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-1405#listings]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*<ins style="font-weight: bold; text-decoration: none;">{{check}}</ins>$1.85/lb<ins style="font-weight: bold; text-decoration: none;">, 45 cents, 18 cents -  </ins>[https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-1405#listings]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*TPU pellets - $2.8/kg -[https://www.alibaba.com/product-detail/Engineering-plastic-transparent-TPU-granules-pellets_60814273971.html?spm=a2700.7735675.normal_offer.d_title.3efe8025MBept1&amp;s=p&amp;fullFirstScreen=true]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*TPU pellets - $2.8/kg -[https://www.alibaba.com/product-detail/Engineering-plastic-transparent-TPU-granules-pellets_60814273971.html?spm=a2700.7735675.normal_offer.d_title.3efe8025MBept1&amp;s=p&amp;fullFirstScreen=true]</div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=TPU&diff=310635&oldid=prev 2025-08-17T21:50:25Z

<p><span dir="auto"><span class="autocomment">Pellets &amp; Regrind</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 21:50, 17 August 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l23">Line 23:</td> <td colspan="2" class="diff-lineno">Line 23:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*TPU pellets - $2.8/kg -[https://www.alibaba.com/product-detail/Engineering-plastic-transparent-TPU-granules-pellets_60814273971.html?spm=a2700.7735675.normal_offer.d_title.3efe8025MBept1&amp;s=p&amp;fullFirstScreen=true]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*TPU pellets - $2.8/kg -[https://www.alibaba.com/product-detail/Engineering-plastic-transparent-TPU-granules-pellets_60814273971.html?spm=a2700.7735675.normal_offer.d_title.3efe8025MBept1&amp;s=p&amp;fullFirstScreen=true]</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*Ebay - $<del style="font-weight: bold; text-decoration: none;">4.</del>5/lb - [https://www.ebay.com/<del style="font-weight: bold; text-decoration: none;">i</del>/<del style="font-weight: bold; text-decoration: none;">124322305617</del>?<del style="font-weight: bold; text-decoration: none;">chn</del>=<del style="font-weight: bold; text-decoration: none;">ps</del>&amp;<del style="font-weight: bold; text-decoration: none;">norover</del>=<del style="font-weight: bold; text-decoration: none;">1</del>&amp;<del style="font-weight: bold; text-decoration: none;">mkevt</del>=<del style="font-weight: bold; text-decoration: none;">1&amp;mkrid=711-117182-37290-0&amp;mkcid=2&amp;itemid=124322305617&amp;targetid=1068323851150&amp;device=c&amp;mktype=pla</del>&amp;<del style="font-weight: bold; text-decoration: none;">googleloc</del>=<del style="font-weight: bold; text-decoration: none;">9023315&amp;poi=&amp;campaignid=10454522096&amp;mkgroupid=104612011900&amp;rlsatarget=pla-1068323851150&amp;abcId=2146002&amp;merchantid=101985892&amp;gclid=CjwKCAiAoOz-BRBdEiwAyuvA6we9NCu</del>-<del style="font-weight: bold; text-decoration: none;">tgCsttxcDySZJO6KKLdQJCiPD6lxfZ96amwa0sE0Q4ck9hoCCgIQAvD_BwE</del>]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*Ebay - $5/lb - [https://www.ebay.com/<ins style="font-weight: bold; text-decoration: none;">itm</ins>/<ins style="font-weight: bold; text-decoration: none;">256934378977</ins>?<ins style="font-weight: bold; text-decoration: none;">_skw</ins>=<ins style="font-weight: bold; text-decoration: none;">tpu+pellets</ins>&amp;<ins style="font-weight: bold; text-decoration: none;">itmmeta</ins>=<ins style="font-weight: bold; text-decoration: none;">01K2X04HX5X793Q5HA27105QFW</ins>&amp;<ins style="font-weight: bold; text-decoration: none;">hash</ins>=<ins style="font-weight: bold; text-decoration: none;">item3bd27b7de1:g:E30AAOSw2bFoJzbw</ins>&amp;<ins style="font-weight: bold; text-decoration: none;">itmprp</ins>=<ins style="font-weight: bold; text-decoration: none;">enc%3AAQAKAAAA0FkggFvd1GGDu0w3yXCmi1dhcKcZPyzDtazaL%2Brt7SROQbWK1vD5zMp3YiU%2B1egp1wnGZ%2F1PyWaKVQ41Gko0KYHvx%2FCT0CWkoJdeQu4MMnBr8YQ46kbj%2F4e7%2B3YUP%2F9DbWjuBT45%2FoO2OAKgvd42yZ%2BsUN3qDN6cDpzxKxvwK0Lja31SnxUu7Jt6kzDvsnOhu%2B2YTC6ao2KkQS6HjDCejjnQywqsoZpsyAscVe%2FVV4CID0ZzFjYwzn%2FZGXnKrowchjkRjTi1BeD7tgAZ56G0JF4%3D%7Ctkp%3ABk9SR</ins>-<ins style="font-weight: bold; text-decoration: none;">6ekqCXZg</ins>]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Ebay $5 [https://www.ebay.com/itm/Lubrizol-Pellethane-TPU-2363-90AE-Virgin-Natural-Plastic-Pellets/283806503380?hash=item42142f91d4:g:2FsAAOSwsddeYp42]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Ebay $5 [https://www.ebay.com/itm/Lubrizol-Pellethane-TPU-2363-90AE-Virgin-Natural-Plastic-Pellets/283806503380?hash=item42142f91d4:g:2FsAAOSwsddeYp42]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$4.6/lb - [https://www.ebay.com/itm/Huntsman-IROGRAN-A80P4699L-Plastic-Pellets-Resin-TPU-Polyurethane-Nat-50-Lbs/114013576554?hash=item1a8bbd1d6a:g:J3sAAOSwwlJd87ZK]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$4.6/lb - [https://www.ebay.com/itm/Huntsman-IROGRAN-A80P4699L-Plastic-Pellets-Resin-TPU-Polyurethane-Nat-50-Lbs/114013576554?hash=item1a8bbd1d6a:g:J3sAAOSwwlJd87ZK]</div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=TPU&diff=310634&oldid=prev 2025-08-17T21:47:19Z

<p><span dir="auto"><span class="autocomment">Pellets &amp; Regrind</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 21:47, 17 August 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l20">Line 20:</td> <td colspan="2" class="diff-lineno">Line 20:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Pellets &amp; Regrind==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Pellets &amp; Regrind==</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">*$1.85/lb [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-1405#listings]</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*$1.25/lb - [https://www.recycle.net/cgi-bin/exlist.cgi?wsc=01-140585]</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*TPU pellets - $2.8/kg -[https://www.alibaba.com/product-detail/Engineering-plastic-transparent-TPU-granules-pellets_60814273971.html?spm=a2700.7735675.normal_offer.d_title.3efe8025MBept1&amp;s=p&amp;fullFirstScreen=true]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*TPU pellets - $2.8/kg -[https://www.alibaba.com/product-detail/Engineering-plastic-transparent-TPU-granules-pellets_60814273971.html?spm=a2700.7735675.normal_offer.d_title.3efe8025MBept1&amp;s=p&amp;fullFirstScreen=true]</div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=TPU&diff=290639&oldid=prev 2023-11-20T20:31:19Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:31, 20 November 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">{{Hint|Combine with [[TPU Sources]]}}</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Basics=</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>=Basics=</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*An abreviattion for the plastic Thermoplastic Polyurethane</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*An abreviattion for the plastic Thermoplastic Polyurethane</div></td></tr> </table>

Marcin https://wiki.opensourceecology.org/index.php?title=TPU&diff=290619&oldid=prev 2023-11-20T19:39:23Z

<p><span dir="auto"><span class="autocomment">External Links</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 19:39, 20 November 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l44">Line 44:</td> <td colspan="2" class="diff-lineno">Line 44:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*https://redwoodplastics.com/polyurethane/polyether-vs-polyester/</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*https://redwoodplastics.com/polyurethane/polyether-vs-polyester/</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">=Links=</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">*[[TPO]]</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category: Plastics]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category: Plastics]]</div></td></tr> </table>

Marcin