Cobalt-Free Trivalent Post Treatment for Zinc

Perma Pass 3300 from Enthone is a post treatment system for zinc and zinc alloy processes.

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Perma Pass 3300 from Enthone is a post treatment system for zinc and zinc alloy processes. The process delivers corrosion performance comparable to chromates and cobalt-based thick film passivates. the product's versatility makes it appropriate for use with acid, or alkaline-cyanide-free zinc, as well as with zinc-iron and zinc-nickel alloy processes. It also has a high tolerance to zinc build up for extended operating life. Parts treated with Perma Pass 3300 exhibit a bright appearance and can have a film thickness range of 100 to 500 nm, the company says, adding that the product also meets RoHS guidelines and IMDS registration.

 

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Sur/Fin 2011

The 93rd Annual Sur/Fin, sponsored by The National Association for Surface Finishing, is rolling into the Chicago suburb of Rosemont, Ill., June 13-15. As always, the conference will present state-of-the-art technology and the latest in practical applications for the surface finishing industry. See you there!