I have been using the 422B version of this product for years and have been completely happy with the results. How does the new 422C version compare?

Works the same and was cheaper, package included 2 brushes for applying it.

Will this make a flexible coating for headphone wires?

No, this product is for water proofing components on a board that is not exposed to regular handling or significant flexing. You need to look at heat shrink tubing or brush on insulation. Heat shrink tubing is probably the best choice depending on what you're trying to do.

Can you use this on an led light over an aquarium? is it toxic after it cures? how long does it last? do you have to keep reapplying it?

I wouldn't put it in an aquarium's water just to be safe, but if trying to stop short circuits in a wet environment- that is what it does if applied correctly and completely covering circuitry, connections etc. Water doesn't seem to degrade an application by itself, physical wear from handling can happen, but it is very durable otherwise and not needing re-coating. Use UV light to see if coverage is complete as it Floreses blue/green so can inspect.

can i paint this on a motherboard to resurface if i scratched the green coating that covers a board?

It will cover it to prevent any shorts, yes. It is conformal coating. I prefer the UV curable type, but it will work.

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Descripción

🛡️ Shield your tech with invisible armor — because your devices deserve the best!

ALL WEATHER DURABILITY - Cold resistant, crack resistant, and water resistant to keep your electronics safe in any condition.
FLUORESCENT SAFETY CHECK - Glows under UV-A light, enabling quick, foolproof inspection of coated electronics.
HEAT RESISTANT POWERHOUSE - Operates flawlessly up to 200°C, perfect for high-temp industrial environments.
FAST PRECISE APPLICATION - Dries clear in just 10 minutes and validated for selective robotic coating—efficiency meets precision.
ULTIMATE ELECTRONIC SHIELD - Protects against moisture, corrosion, fungus, dust, and thermal shock for long-lasting device reliability.

MG Chemicals 422C Silicone Conformal Coating is a 55 mL liquid solution designed to protect sensitive electronics from moisture, corrosion, fungus, dust, thermal shock, and electrical hazards. It withstands temperatures up to 200°C, dries clear in 10 minutes, fluoresces under UV-A light for easy inspection, and is compatible with robotic application systems, making it ideal for demanding industrial and high-humidity environments.

Presupuesto

Brand	MG Chemicals
Specific Uses For Product	Industrial applications, high temperature environments, high humidity environments, corrosive environments
Material	Silicone
Item Form	Liquid
Special Feature	Cold Resistant, Crack Resistant, Dries Clear, Fast Drying, Heat Resistant, Strong
Colour	transparent
Item Package Quantity	1
Package Information	Bottle
Item Volume	55 Millilitres
Viscosity	Moderate
Full Cure Time	2E+1 Minutes
Water Resistance Level	Water Resistant
Net Quantity	1.86 Milliliters
UPC	779008422069
Manufacturer	MG Chemicals
Country of Origin	USA
Model number	422C-55MLCA
Number of Memory Sticks	1
Item Weight	50.7 g
Product Dimensions	7.68 x 24.32 x 5.12 cm; 50.7 g
Item model number	422C-55MLCA
Item Height	5.12 Centimeters
Item Width	24.32 Centimeters
Included Components	2 Brushes

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