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topic 8191

Need an Acid Resistant Coating


(2001)

I am looking for an acid resistant coating for machined aluminum machine parts.These parts need to have a similar resistance as 304 stainless.

Brad Hartley
- Media, Pennsylvania


(2001)

The simplest answer to this is to pre-treat the aluminum parts with chromating process and apply Teflon coating or polyester powder coating. If the parts require to withstand hard mechanical scratch, then hard anodising with hot seal may help your application.

Andy Lim
- Kuala Lumpur, Malaysia


(2001)

If you use hard anodizing process because you want a scratch resistance coating. It is much better off to leave it un-seal. The sealing may reduce the scratch resistance of the surface.

S. Y. Yuen
- Hong Kong, China


(2001)

Sir:

Have you tried preparing the Aluminum by etch/desmut/zincate/Electroless Nickel Strike/Electroless Nickel(high phosphorus)? The high phosphorus deposit will give you excellent corrosion protection, plus have coverage wherever the solution makes contact with the Aluminum

ed budman
eb sig
Ed Budman
- Pennsylvania



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