Re: [ATM] Silicone Failure

["Jan van Gastel" <jhm.vangastel@wanadoo.nl>]

I always use a primer after cleaning the metal. Works very well.


Jan
http://home.wanadoo.nl/jhm.vangastel/Astronomy/
----- Original Message ----- 
From: "Gilbert Gagne" <gil5941@earthlink.net>
To: <atm@atmlist.net>
Sent: Thursday, May 26, 2005 4:06 PM
Subject: RE: [ATM] Silicone Failure


> Jay Kirkland wrote:
>  >...Siliconed the mirror onto its cell about two weeks ago and let it 
> cure.... As soon as the mirror neared verical, the top 18 support 
>  >points sheared away from the metal. ... But what did I do wrong? Wrong 
> silicone?
> 
> I would suspect oily contamination of the metal parts. Next time, try 
> using a good degreaser like trisodium phosphate (TSP), available from 
> Home Depot/Lowe's.
> Gil Gagne
> Port Orange, FL
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