MG Chemicals 422B-340G Silicone Conformal Coating, Clear,12 oz Aerosol

Works great. Easy to apply dried nice and hard

I love silicone conformal coating. I put that **it on everything. I frequently use it to protect electronics I use unprotected, they're just exposed circuit boards, so there is a good possibility of me shorting something out unless I coat them (or put them in a case, but I'm often not ready for that yet). I generally try to buy the stuff with a brush that comes in a glass jar but the price on Amazon has been unrealistically high at currently $35 but was ~$39+ for months not long ago. Prior to that it was $15 which is still pretty expensive for diluted silicone. But people are willing to pay that much according to the sales rank of the item, so I don't expect much of a drop anytime soon. Soooo.....55ml jar for $35 or 425mL can for $25.88, guess which one I'll choose. Still have the old jars so spray it in and there you go, drops from $0.63 per mL to $0.06 per mL... 10 TIMES LESS and the added benefit of using it as a spray if you want, say on the back of a board. I didn't check the savings with the 945mL container, if there is any. I love MG Chemicals and their products. Must have one of everything on hand at all times, just in case. Silver conductive epoxy gets expensive though.

I was able to coat my fans control board in my van conversion with this. I have had no condensation issues at all.

I use it to protect my FPV’s and it works just fine

I used this product on a 24 year old PCB board for a gate controller. After cleaning the PCB board of old no longer conformal acrylic coating, I sprayed four moderately thick coats from all four directions. After drying over night, the PCB board looked more or less new. Back in the powder coated steel case, rewired, and good-to-go! Great product. Thank-you!