Re: ATM How do you properly cement the mirror hole plug

["Alfredo Neves" <aneves@novared.cl>]

Hi Scott,

Thanks for the advice. My problem was with the epoxy ring aound the 
plug. It rubs against the pitch and pits the lap.

Alfredo



----- Original Message -----
From: Scott Rychnovsky <srychnov@chem.ps.uci.edu>
Date: Thursday, June 20, 2002 11:35 am
Subject: Re: ATM How do you properly cement the mirror hole plug

> 
> Alfredo,
> 
> I have used Plaster of Paris (NOT dental stone!) and wax.  You 
> just 
> need to hold the blank securely and then be able to remove it.  I 
> would be very nervous about using epoxy--it is likely to put 
> stress 
> on the mirror and make it very hard to remove the blank at the 
> end. 
> Since you need to dig out the plaster at the end, I would rather 
> not 
> use dental stone--it is harder to chip away than simple plasters. 
> With a waxed core, I just put the whole thing in the oven a heated 
> it 
> very slowly until the wax melted and the core fell out.  I did not 
> put in the wax core but rather bought it that way.  My guess is 
> that 
> sealing wax (for letters) would work fine, but most waxes would 
> probably be OK.
> 
> Good luck with your project.
> 
> Scott
> 
> 
> 
> --
> Scott Rychnovsky
> srychnov@chem.ps.uci.edu
> ATM Page: http://tlepage.home.mindspring.com/
> 
>