For an opaque coating, look at Electrolube DCB. I have used it before for customers with the same security concerns. On Fri, Aug 30, 2019, 14:13 Graham Collins <[log in to unmask]> wrote: > Hello Technet > > So I've got a customer who wants to dip coat their circuit board. It is > a small thing, 1/2" x 2", with wires attached at one end. So for dip > coating I can actually hang it by the wires for curing, no masking > required - works out OK. > > A couple of questions though. > > 1) any gotcha's with dip coating? I've only done spray (manual and > automated) thus far. Is viscosity critical? > > 2) does anyone make a black colored coating? They are somewhat concerned > with IP protection so a color block would be a plus. > > Happy labor day weekend to all on this side of the pond! > > thanks, > > -- > Graham Collins > Senior Process Engineer > Sunsel Systems > (902) 444-7867 >