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Material of construction for chromate conversion coating tanks


Q. Dear sir,

please we are looking for your help , we want to do the same yellow chromate coating , but in what the tank is supposed made of .

Tariq Sunni
city sign - Kingdom of Bahrain
2007


A. PVC-lined steel is good. Solid polypropylene or stainless steel should be okay too. Proper grades of fiberglass (vinyl ester resin) should be good as well.

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.
2007


Q. Please we are going to set new plant , but we do not know what material to use :
1- hexavalent chromium 65% @ 90 c .
2- caustic soda ⇦liquid caustic soda in bulk on Amazon [affil link] 10% @ 82 c .
3- nitric acid - room temperature .

Tariq Sunni
city sign - Kingdom of Bahrain
2007




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