Hot Dip Galvanizing

Howto

1. Sand blast
2. Base bath - 10 minutes min
3. Base bath - 7 minutes min
4. Flux - ammonium
5. Actual dip - 3.5 minutes (until base metal reaches melt temp of 835F)
6. Water - trapped water explodes, and is dangerous, so first dip is dangerous and venting must be assured.
7. Zinc - 2400 lb blocks are the feedstock for hot dip baths. This is only 0.1 cubic meter - or 4 cubic feet.

https://www.aisc.org/globalassets/modern-steel/archives/2014/08/2014v08_galvanizing.pdf

More about surface preparation: [1] =Sourcing0

&Ammonium chloride - $2/lb [2]

Links

• Powder Coat vs Hot Dip Galvanized
• Hot Dip Galvanizing Quotes