TPU

Hint: Combine with TPU Sources

Basics

• An abreviattion for the plastic Thermoplastic Polyurethane
• The main flexible filament used in FDM 3D Printing
• Can be hard to print due to the flexible filament "spilling out" in the extruder etc
• Also may require tweaking of settings to acheive the desired print quality

Notes

• 4-6,000 PSI tensile strength
• clear form exists
• UV stable forms exist
• Can be mixed with polar plastics such as PVC

Sourcing

Sourcing Working Doc

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Pellets & Regrind

• $1.85/lb, 45 cents, 30 cents, 14 cents - thousands of lbs - [1]. It appears that sub-$1 is available in abundance.
• $1.25/lb - [2]
• TPU pellets - $2.8/kg -[3]
• Ebay - $5/lb - [4]
• Ebay $5 [5]
• $4.6/lb - [6]

Internal Links

• Clear TPU 3D Printing

US Companies

• Good list on Thomas Register - [7]
• Midwest Elastomers [8]
• American Poly Film [9]
• Kent Elastomer [10]
• Resmart [11]. $2.60/lb Shore 80A ES in ton quantity.
• Metro Plastics [12]
• Lubrizol - [13]

Applications

http://www.apstpe.com/tpu-applications/

External Links

• The Wikipedia Page on TPU
• http://www.huntsman.com/polyurethanes/Media%20Library/global/files/guide_tpu.pdf
• https://redwoodplastics.com/polyurethane/polyether-vs-polyester/

Links

• TPO