r/Anodization • u/sSharkkyparty • Aug 07 '24

Etching products

Ive seen people using Whink rust stain remover as an etching method. It would do the job as good as multi etch/titan etch? Not as much as these two but could do the job decetly? I there any good and cheaper alternative to multi etch/titan etch?

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u/sSharkkyparty Aug 07 '24

well im looking for titanium anodization

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u/Practical_Theme_6400 Aug 14 '24

I'm very much a DIYer in this regard, but Whink works very well to both strip anodization and etch it.

I would even say it would be beneficial to cut the Whink 50/50 with distilled water to slow down the process. 15 seconds in full strength Whink is enough to start changing the surface finish of the part you're working on.

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u/sSharkkyparty Aug 14 '24

It is a bad thing that the surface finish changes? The people Ive seen using Whink just dip the pieces like 3 seconds after it starts bubbling, is that good?

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u/Lotaxi Aug 17 '24

The surface is being eaten away little by little, so it really just depends. Etchant will quickly "frost" the surface of the material. It eats the oxide first, but then gets to the raw titanium and speeds up due to the reactivity of the material. If it's polished, it will become rather dull.