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Re: [ATM] Protect a finished optical surface to work on reverse

There is a product made for this purpose, called "Pre-cote 33 Blue  
Spray" protective coating, part #LB0004 sold by Universal Photonics,  
Inc. Hicksville, New York. It comes in an aerosol can and is applied  
like spray paint. Dries in a couple minutes for handling. To remove,  
just peel it off. I've used it for years to protect my finished  
mirrors from dust and fingerprints from handling. I was unable to  
obtain collodian, as Thomas suggests, since it's considered a  
hazardous material in California.

Their website is under reconstruction and doesn't tell you much, but  
you could call them for more info at (800) 645-7173.

Larry

On Mar 11, 2007, at 6:33 PM, Christopher Dalla Piazza wrote:

> On the first polishing attempt with my Elgin, I managed to "polish"  
> a few
> spots from slippage on the underside of the corrector with TOT when  
> I didn't
> use newspaper under the corrector I was polishing.  Now that I will be
> placing a finished surface on the bottom, I want to protect it from  
> any wear
> what with CeO all over the place much less from any contact with  
> normal
> washing or accidental brushing against my wedding ring or whatever  
> else.
>
> I was thinking something as simple as plastic wrap but that seems  
> like it
> would get annoying with washing.
>
> It seems like latex paint would peel off nicely but hopefully not  
> stick too
> bad to require aggressive removal.
>
> What I was wondering was what do you use, both to coat and to  
> dissolve when
> you are finished?
>
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