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🛡️ Shield your tech with the fastest, toughest, and smartest conformal coating on the market!
MG Chemicals 422C Silicone Conformal Coating is a clear, flexible, and durable protective liquid designed for electronics. It cures quickly, withstands temperatures up to 200°C, fluoresces under UV-A light for easy inspection, and offers robust defense against moisture, corrosion, dust, static, and electrical hazards. Ideal for industrial and manufacturing use, it supports robotic application and ensures long-lasting reliability.












| ASIN | B085G42TGS |
| Best Sellers Rank | #21,126 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #65 in Silicone Sealers |
| Brand | MG Chemicals |
| Brand Name | MG Chemicals |
| Color | clear" or "transparent |
| Colour | clear" or "transparent |
| Compatible Material | Metals, Plastics, Ceramics |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 1,034 Reviews |
| 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 |
| Item form | Liquid |
| Manufacturer | MG Chemicals |
| Material | Silicone |
| 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 |
| Special features | Fluoresces under UV-A light, Validated for selective robotic coating equipment |
| Specific Uses For Product | Electronics Manufacturing, Industrial Settings |
| Specific uses for product | Electronics Manufacturing, Industrial Settings |
| UPC | 779008422069 |
| Unit Count | 55 Milliliters |
| Volume | 55 Milliliters |
| Water Resistance Level | Water Resistant |
M**U
Good product
It applies well and dries fast. Works better when appliying a generous coat; the end result just looks better.
A**E
The weird smelling paint that saves your electronics
A coating of this stuff will save you $$$ on your outdoor electronics. I personally use this stuff on my FPV drones and it has saved me before. Not a silver bullet, but good insurance. Just be mindful this stuff is definitely cancer juice, so don't be like me and apply it at your desk. Outside or under a fume hood is ideal.
F**S
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.
D**4
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 .
D**D
Perfect for waterproofing rc motherboards
Simple to use and super effective!
Trustpilot
2 months ago
2 days ago