Back to Home

ATM Forum Message

Forums: Atm · Astrophotography · Blackholes · Blackholes2 · CCD · Celestron · Domes · Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem
RSS Button

Home | Discussion Forums | Amateur Telescope Making | Post
Login

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
RE: Blotchy Mirror Coatings - Bob May Are You There?

Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To
Posted by Robert May on October 2, 2000 17:20:14 UTC

Blotchiness can come from a number of reasons. Rick Crocket remarked on a number of them. You could also have a film from the solvents in the paint and the best stuff for that (if the normal method doesn`t touch the problem) would be xylene and/acetone - you can get some from the Home Depot (in the paint dept.) and clean like you would with anything else, making sure that you don`t scrub the surface. I would assume that the blotches kind of look like yellow and purple/blue sort of blotchiness and that sort of thing won`t really affect the quality of the mirror by very much as it`s a coating of the solvent and is just providing a interference fringes due to it`s thickness when looking at the finish.

Follow Ups:

    Login to Post
    Additional Information
    Google
     
    Web www.astronomy.net
    DayNightLine
    About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
    Unless otherwise specified, web site content Copyright 1994-2024 John Huggins All Rights Reserved
    Forum posts are Copyright their authors as specified in the heading above the post.
    "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET"
    are trademarks of John Huggins