I did a little evaluation of Dow 3-1765 last April in our Nordson Select
Coat system, and made the mistake of running it through our IR oven set up
to cure Emerson & Cuming Unicoat S-7001, which is another solventless,
heat-accelerable silicone coating.  I quickly found that you've got to
follow Dow's max cure temp of 65C for the 3-1700 series of coatings - my
oven got the coating to 105C, and it wrinkled up.  150C is DEFINITELY too hot.

We did some more experimenting in October at Nordson's lab with Dow 3-1753,
which is the same material at somewhat higher viscosity (385CPS instead of
130cps) and got similar results.  Take Dow's recommendation.
--------------------------------------
Raytheon Systems Company
Benjamin A Guthrie                     Phone: (219)429-8324
Mail Stop:25-31  Fax: (219)429-4688     Email: [log in to unmask]
HDC, 1010 Production Road, Fort Wayne, IN 46808

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