MG Chemicals 422B Silicone Modified Conformal Coating, 55mL Glass Bottle with Brushes, Clear

This Stuff is Awesome for all Electronics in damp wet conditions I bought some last year and just bought some more after a year of trial and im Very Impressed with Product I was using Silicone to water RC Electronics but this is alot easier and cleaner and the results are fantastic I also use on Led lights for car Power Wheels Electronics Radios and so much more I live in a Super High Humidity Area and things just Corrode and get damp in destroyed fast but now with The Silicone Conformal Coating im actually saving money because things are staying protected and lasting not needing to be replaced I also completely submerge my RC's under water and this stuff really Works Great I Have Never Had things Fail with Silicone but it Takes A super long time to do and is Nasty looking afterwards big and Bulky but works then Plasti Dip hahaha Don't Bother with that Stuff it will Fail I Have Lost Electronics with that Stuff it breaks free from and movement on the edges especially around wires and allows water/Moisture to seep on by Straight to ElectroBoard and instantly Burnt out Fried.... NOW Silicone Conformal Coating Goes on Clean Looks Great and UV Detectable Can see exactly where its at and if need another Coat leaves board/ Electronics Still Looking New and can Breath for proper Heat Dispersal to run cooler Total Plus you wont be Disappointed at all but must have a UV Light or Buy 1 there real cheap mine is a UltraFire WF-502B got for around 8bucks and uses a rechargeable 18650 5000mah 3.7v Battery

This stuff is The Business. My main initial concern in using this product was the feel of it being a final touch and you couldn't go back and resolder connections for maintenance, but you can easily remove/replace connections where this has been applied, and simply apply another coat on the area where you've worked. This is a very low surface tension liquid that pulls itself into all nooks and crannies, and the cap has a brush included. very easy to apply, and dries in minutes... the finished product is a nice and thin, glossy, waterproof silicone coating. I used it to waterproof all of the components on my miniquad including the ESCs, pdb connections, flight controller, radio receiver, VTX, even the board cam. Although It doesn't seem to be available at the time of writing this review, I've seen several of the popular youtubers flaunting their bottles so there's very likely other sources around. One bottle will last you for many jobs.

I picked this up to coat my min quad boards. My first flight after my build my flight controller died just from dew in the grass, not even 10 seconds in. After I rebuilt with new parts I coated everything, even my RX with this stuff and I haven't had any issues since. My boards were covered with wet grass and never had a brownout or anything.I applied three coats, 5 minutes between coats, but this stuff can be layered on so thick that you barely need two. The included brush could be better, but it does the trick just fine.USE VENTILATION. This stuff is super toxic and smells terrible. I did it inside on my workbench and would highly recommend doing it outside or in a room with a adequate ventilation. The smell lingers for at least a day and it isn't pleasant.This stuff also fluoresces under UV, so if you have it use it. Outside in the sun all of my boards glow purple, so you can take your boards out into sunlight to check your coverage if you don't have a UV light.Would highly recommend this for anything and it will last you quite a while. I did 6 boards in total with about 3 coats each and you can barely tell the bottle was used at all. BUY IT.

I like this product. I previously used another version that was not "Modified" and I liked it better because it was a bit thicker and allowed a heavier coating, I can't find that now. The brush on that older bottle had more strands and was easier to work with. 4 stars just because I liked the old formula better. But both are good.I like that this can take a fairly high temperature. 200C or 392F and it's easy to solder through it.I repair / restore vintage radios and use this all the time. It is not a brush-on insulation, it's too thin for that. Use brush on liquid electrical tape instead.One good use is Pre-WWII radios with the early plastic/rubber insulation on the internal wiring. Often that insulation just crumbles off the wire if you move it. I use this to brush on a silicone coating and it helps stabilize that crumbling insulation. Before I usually replaced almost all the wiring with new wire. With this, I usually replace less wire. The coating is clear so you can still see the old wire color. In fact, it seems to brighten the old faded colors making it easier to tell what color it actually is.On some of that old insulation it seems to penetrate a little and makes it more flexible. Not new, but better. On others, it just coats the old wire, but that coating helps hold any crumbles in place on the wire. This really helps hold things together while you troubleshoot the radio to see what repairs are needed. And for me, it somewhat reduces the amount of wire that must be replaced. If it looks good and has the coating I might just leave it in place.This stuff does dissolve if you get spray contact cleaner or WD40 on it. So I try to spray clean things before I apply it.It's a good product, I like it.