422B-340G 422B Silicone Conformal Coating, Clear, 340 gram Aerosol

Works great. Easy to apply dried nice and hard

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

good value, Comes with C of C.

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!

perfect

The spray seemed too watery. Even with multiple light coats I wasn’t able to build up enough product to cover the small resistors and exposed pins.

I'm using this product to seal and protect various PCB that will be outdoors 365 days a year. It's a great product, get the silicone coating, it's less prone to cracking and separation.

I use it on mini-split ECBs. The outdoor units have boards with no waterproofing that I can detect & in the Pacific NW that's a big problem.

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

Works well

Worked great sealing components near the GPU and CPU on my laptop motherboard.

Works as it should