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February 1998

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Subject:
From:
Sheila Smith <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 17 Feb 1998 10:44:21 -0500
Content-Type:
text/plain
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Gee Chris, why don't you call the folks at Dow Corning's Tech Center & ask
them to recommend a cure profile?  You can reach them at 800-248-2481.

At 08:09 AM 2/17/98 -0600, you wrote:
>     All,
>       We are currently using a Dow Corning 3-1765 silicone coating in a 
>     PVA machine.  The problem lies in a execrated cure time for this 
>     material.  I am seeking information on a profile that will work with 
>     the curing process.  I have been told that without adding humidity to 
>     the process you can't go over 65ºC or you boil out the moisture it 
>     needs to fully cure.  However, I was also told that 150ºC for ten 
>     minutes w/out humidity is the proper cure.  I have a Vitronics IR 
>     reflow oven that I've been trying to get to cure this coating.  I know 
>     its not the best situation, but it was meant to be crutch until we 
>     could obtain new equipment.  This new equipment, a dip tank is 
>     intended to run Dow Corning 2577 and I also need cure profiles for it. 
>     If anyone has cure information on either the 3-1765 or the 2577 I 
>     would greatly appreciate it.
>     
>     Thanks
>     Chris Smith   M.E.
>
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