Re: ATM Removing coating.

[andydtg@alpha1.phoenix.net]

Re
>>
>>There's a 10" RC cass attempt that's been sitting nose-down in my basement
>>for nigh unto two decades.  The first potential hill to get over to
>>refigure the thing is to remove the coatings.  In the spirit of ATM
>>do-it-yourself, is there some way to avoid having to package up the two
>>mirrors and send them away to a coating shop? 

>By coatings I imagine you are referring to Aluminum. Although, there may
>something less caustic, AQUA-REGIA should work. This is a mixture of 1:3
>conc. Nitric Acid and Hydrochloric Acid.

Radio Shack sells some kind of PC board etching solution that is
supposed to be usable for removing aluminized coatings. I have
a vague recollection of reading about this in one of the ATM
Journals.



Andy Saulietis / DTG Alt-Az-Fp Drive Systems
12617 Harriet Ln
Santa Fe, TX 77510 USA
409-925-8854 Voice/Fax