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rogersda@cox.net wrote:
"Haywire" <haywire@telus.net> wrote:
I don't think that last statement is exactly true. Pickling solution
>(main ingredient: phosphoric acid) has long been used in industry to
>absolutely clean carbon steels before painting. The slight etching it does
>to the surface has a lot to do with the exceptional durability of factory automotive paint jobs.
See, you give one piece of information and it raises a thousand questions. The steel tube I got from Aicraft Spruce has a hard black coating on it. I'm positive that it's not paint, but I'm not sure what it is. I'm pretty sure that it needs to be stripped before painting (haven't been able to find a definite answer anywhere).
So now my question is, after stripping this black stuff, should I etch the steel before painting? Would this pickling solution be a good choice for etching?
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----Because I can----
http://home.nc.rr.com/deltabuilder
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