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Re: [ATM] undercoating for the inside of telescope tubes?
I haven't tried it, but it does have a satin finish and does reflect
light to a certain extent. But it does leave a nice wrinkle finish that
would probably turn into a black hole it it were hit with a coat or two
of krylon ultra black (if the krylon adheres to the undercoating).
George Anderson
Montreal Canada
Clear skies and good health
Guy Brandenburg wrote:
>
> One of the folks that helps out with our telescope
> making classes swears by (instead of AT) the use of
> automobile undercoating paint for blackening and
> deadening reflections on the inside of telescope
> tubes. I personally am a little leery of using this
> technique because I fear that the stuff will stay
> goopy for too long. He says it's dried up just fine,
> but hasn't brought it in for me to see for myself.
>
> Has anybody else tried this?
>
> Guy B
>
> Guy Brandenburg
> Washington, DC
> My home page:
> http://home.earthlink.net/~gfbranden/GFB_Home_Page.html
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