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🛡️ Protect your tech like a pro—durable, fast, and future-ready!
MG Chemicals 422C Silicone Conformal Coating is a high-performance, clear protective liquid designed for electronics. It cures quickly to a flexible, durable finish that resists moisture, corrosion, dust, thermal shock, and electrical hazards. With a max service temperature of 200°C and UV fluorescence for easy inspection, it’s ideal for industrial and manufacturing applications, including robotic coating processes.












| Asin | B085G42TGS |
| Best Sellers Rank | #22,477 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #67 in Silicone Sealers |
| Brand Name | MG Chemicals |
| Color | clear" or "transparent |
| Compatible Material | Metals, Plastics, Ceramics |
| Container Type | Bottle |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,027) 4.7 out of 5 stars |
| Full Cure Time | 24 Hours |
| Included Components | 2 Brushes |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | Protective Coating |
| Item Weight | 50.7 Grams |
| Manufacturer | MG Chemicals |
| Material Type | Silicone |
| Model | 422C-55MLCA |
| Number Of Pieces | 1 |
| Other Special Features Of The Product | Fluoresces under UV-A light, Validated for selective robotic coating equipment |
| Part Number | 422C-55MLCA |
| Specific Uses For Product | Electronics Manufacturing, Industrial Settings |
| Unit Count | 55 Milliliters |
| Upc | 779008422069 |
| Volume | 55 Milliliters |
| Water Resistance Level | Water Resistant |
User
Good product
It applies well and dries fast. Works better when appliying a generous coat; the end result just looks better.
User
This coding works really well in the building of quadcopters
I have done no scientific testing whatsoever with this coating. I can’t tell you from real world experience of building 15 to 20 drones that this coating will extend the life of your components , it’s excellent with heat really good with moisture and it doesn’t stress out your boards when curing like some coatings . This stuff you can paint a board then handle the board and install it all in about 10 or 15 minutes I believe this is a must have if you live in the southern hemisphere of the United States for moisture alone. I have lost a lot of boards to wet grass on a crash. I can tell you that I also use this on my VTX’s , receivers ,GPS Antanas , LEDs whatever I have seen no downside to this product.. what I do is lightly paint the board when I receive, Then do my soldering ,and my installl ,my wire placement everything . Then test everything then Before I button it up I’ll paint the top side of the board for sure sometimes the bottom again just to help with things like loosing pads or wires and I use as a light glue to help wires stay in place . I’ve built a lot of drones and I believe this is a must have for a builders toolbox. This coating is easy to apply and really does go a long way before running out . Only downside was I gobed a bunch is USB port then had to clean it out befor I could connect to beta flight , but that was user error. What I do now is shove a little silly putty in the USB port before painting then pop the putty out when done .I highly recommend this product . The odor is strong use in well ventilated area .
User
Conformal coating
Top-quality conformal coating for the FC ESC VTX camera/dve board and reciever on my GepRC TinyGo 4k and iFlight Nazgul xl5. I wouldn't dunk them in water but I'm confident they can handle a puddle snow or rain.
User
The good stuff!
Wow! This was exactly what I needed to finish up a project that I was working on. This stuff is next to impossible to find locally anymore, and this particular brand works very well. You get what you pay for when it comes to this stuff so buy the best! Thank you Amazon for making this available!
User
Perfect for waterproofing rc motherboards
Simple to use and super effective!
Trustpilot
2 weeks ago
3 days ago