Good point. We usually let them dry overnight at ambient conditions before baking. The longer you leave a coating to evolve the solvent gently, the less chance of bubbles. We apply it pretty thick and leaving a long ambient drying time allows us to do it bubble free. Doug Pauls Principal Materials and Process Engineer Rockwell Collins On Wed, Oct 5, 2016 at 10:18 AM, Wayne Thayer - EXT <[log in to unmask] > wrote: > When baking 1-2577 be real careful: If it is cured too quickly (depends on > thickness) then it will trap lots of solvent bubbles. > > From: Douglas Pauls [mailto:[log in to unmask]] > Sent: Wednesday, October 05, 2016 8:16 AM > To: TechNet E-Mail Forum; Wayne Thayer - EXT > Subject: Re: [TN] Silicone Conformal Coating supplier > > Dean, > We use Dow Corning 1-2577 as our approved silicone and it has always > worked well for us. It is about 20-30% toluene, so it is a VOC, but if > memory serves, there are low VOC versions of 1-2577 out there. While it > does have a relatively quick tack time, you may want to bake it a while to > drive the cure reaction and improve adhesion. > > > Doug Pauls > Principal Materials and Process Engineer > Rockwell Collins > > On Wed, Oct 5, 2016 at 10:08 AM, Wayne Thayer - EXT < > [log in to unmask]<mailto:[log in to unmask]>> wrote: > Isn't that stuff about half toluene? > > Really--I love 1-2577 too, but won't it cause all of the "VOCs" alarms in > the county to go off at once? > > Wayne Thayer > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]<mailto:[log in to unmask]>] On Behalf > Of lduso - Diamond-MT.com > Sent: Wednesday, October 05, 2016 7:54 AM > To: [log in to unmask]<mailto:[log in to unmask]> > Subject: Re: [TN] Silicone Conformal Coating supplier > > 90% of our customers (DOD & commercial) call out Dow 1-2577. A good all > around SR that is extremely easy to apply, t/u, rework and has a very quick > "dry" time of a mere 20 minutes @ room temp. Others are MG Chemicals and > Humiseal. > > Lloyd Duso > Plant Manager > Diamond-MT > (814) 535-3505<tel:%28814%29%20535-3505> > www.Diamond-mt.com<http://www.Diamond-mt.com> > > On Wed, Oct 5, 2016 at 10:48 AM, Stadem, Richard D. < > [log in to unmask]<mailto:[log in to unmask]>> wrote: > > > I have a client who needs to qualify a silicone coating, either an > > oven cure or UV cure coating. I am looking for a good supplier or > distributor. > > If any of you coating experts would care to share your favorites with > > me, I would greatly appreciate it, as I am not an expert on sources of > > coatings (best pricing, service, stocking, etc.) Feel free to contact > > me directly by answering this email. > > Thanks for any info you feel comfortable sharing. > > dean > > > >