ElectroniCoat Conformal Coating for Electronics, Flexible Clear Rubber Sealant, 9 kV Dielectric Protection, Circuit Board Waterproofing Spray, Strong Surface Bonding, Fast-Dry (Pack of 1)

I use this to coat the circuit boards of my Eufy magnetic door sensors. So far they have been through two rains each in Northern California and they are still working. If they stop working I will report back and change the star rating. It is an acrylic type coating, sprays on clear but dries somewhat opaque.

Sprayed this on the circuit board of the ECM in my Fuel Injected Bronco. Moisture is the enemy of these old boards, and in an old vehicle, moisture is everywhere. Sprayed a few layers of this on the board front and back, so now my Bronco will run through any weather.

I use to work for a DOD conctracor and we always gave our PCBs a clear coat. Some outdoor items for my carwash are not coated so just trying to get a little more life out of them.

Works as advertised. A bit pricey.

Sealed wires and saved thousands

Be careful with this product depending on it’s use, because while it may offer waterproofing and work as advertised, , it dries to a whitish color leaving surfaces very messy looking.. it does not dry clear….

Works best when you apply very thin coats and let them almost dry between next application. 5 min between each, spraying from about 10 in away. Cover all connectors and heatsinks with blue tape, otherwise you will regret it. We used this stuff in the military. Had to spray it outdoors as there is an odor.

Very disappointing product. Instead of the “clear” thin finish as advertised and expected, this product leaves a lumpy, bubbly, almost opaque finish. Even worse, the film seems to outgas as it dries, so some bubbles burst and dry as craters or they stay suspended and dry as voids. Who knows if the dialectic properties are affected or not? And worst of all, the product is non-returnable, so $35 wasted. See attached 2 pics, before and after application.