I'm trying to remove a unknown coating on a piece of cast aluminum. I have tried buffing it off, a couple of chemicals from paint stripper to a lye. The only way I have even dented it was with a wire (course) brush on a drill, and it was winning, but I did at least scratch it. I was told it was a teflon coating, then after I questioned this I was then told it was a ceramic plasma coating ?
The coating is very thin, I would say smaller than the thickness of paper, it will crumble when hit or pliers is used on it, it flakes off in very small pieces, it's a black coating and is porous, looks smooth but is porous. I plan on polishing to a high luster and anodizing, the pores are collecting a finish off of a material run around them. This is a work at home project, any help on what I'm dealing with, and how to remove it would be appreciated. Where they coated the aluminum there is a green almost paint like around the edges of the black coating I'm trying to remove.
Thanks, Clint
The coating is very thin, I would say smaller than the thickness of paper, it will crumble when hit or pliers is used on it, it flakes off in very small pieces, it's a black coating and is porous, looks smooth but is porous. I plan on polishing to a high luster and anodizing, the pores are collecting a finish off of a material run around them. This is a work at home project, any help on what I'm dealing with, and how to remove it would be appreciated. Where they coated the aluminum there is a green almost paint like around the edges of the black coating I'm trying to remove.
Thanks, Clint
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