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Replacing Grit Blasting with Silane

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Q.This question is in regards to an article in Products Finishing's October 2004 issue addressing powder coating 304 stainless. We are a batch shop in Oregon. We coat a large quantity of 304-stainless tubing. We currently grit blast for “tooth.” Blasting is very labor intensive. I noticed the mention of Silane in the clinic. Is it possible to use Silane as a stand in place adhesion promoter to replace grit blasting. If so, who would you recommend as a material provider. N. H.

 

A. Yes, Silane does promote powder coating adhesion on a variety of products such as glass and stainless steel. Silane is applied in liquid form and is sold under a variety of product names from most all pretreatment chemical suppliers.
 

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