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February 1998

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Subject:
Re: Conformal coating cure for Dow Corning 2577 and 3-1765
From:
ETS <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 17 Feb 1998 08:26:48 -0800
Content-Type:
text/plain
Parts/Attachments:
text/plain (49 lines) 
One thing to keep in mind here is that the Nordson style oven is made
especially for conformal coatings while the vitronics is not. The airflow
rates and other factors are much different for reflow than for conformal
coating curing. Our ovens fall into two classes:

One style for Reflow and curing (adhesives, solder mask, etc.)

One style for conformal coat curing.


>I have used a Nordson oven (ETS reflow oven) on 1753 (a thicker version of
>1765) successfully at a previous employer. Cure time was a minimum of 1
>minute (sometimes less) for 2 mil coating. This worked as long as relative
>humidity in the plant was over 25%. There was app. 30 seconds between end
>of spray and oven entrance sitting on a conveyor.
>-------------
>Original Text
>From: C=US/A=INTERNET/DDA=ID/TechNet(a)IPC.ORG, on 2/17/98 9:31 AM:
>See attached files.
>
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