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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MG Chemicals - 422C-55MLCA 422C Silicone Conformal Coating 55 mL Bottle

MG Chemicals - 422C-55MLCA 422C Silicone Conformal Coating 55 mL Bottle

Product ID: 442045494

Details

Brand
MG Chemicals
Item Form
Liquid
Material
Silicone
Special Feature
Cold Resistant

💧Water & corrosion resistant

🔥Max service temp 200°C

🔦UV-A fluorescence for easy inspection

€ 77.53

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Description

🛡️ Protect your tech like a pro — invisible armor for the modern workspace!

INVISIBLE YET POWERFUL - Dries clear to maintain sleek device aesthetics while delivering robust protection.
UV DETECTABLE ASSURANCE - Fluoresces under UV-A light for effortless quality control and inspection.
HEAT RESISTANT PERFORMANCE - Withstands extreme temperatures up to 200°C, perfect for demanding industrial environments.
ULTIMATE ELECTRONIC SHIELD - Protects against moisture, dust, fungus, and thermal shock for long-lasting device reliability.
QUICK PRECISE APPLICATION - Fast drying with a 10-minute handling time, compatible with selective robotic coating systems.

MG Chemicals 422C Silicone Conformal Coating is a 55 mL transparent liquid designed to safeguard electronics from moisture, corrosion, dust, and thermal shock. It withstands temperatures up to 200°C, dries clear, fluoresces under UV-A light for easy inspection, and is optimized for both manual and robotic application, making it an essential protective solution for high-performance industrial and scientific equipment.

Specifications

ASIN	B085G42TGS
Best Sellers Rank	#74,080 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,206 in Lab Supplies
Brand Name	MG Chemicals
Colour	transparent
Compatible Material	Ceramic, Metal, Plastic
Container Type	Bottle
Customer Reviews	4.7 4.7 out of 5 stars (1,032)
Full Cure Time	2E+1 Minutes
Included Components	2 Brushes
Item Form	Liquid
Item Package Quantity	1
Item Type Name	Protective Coating
Item Weight	50.7 Grams
Manufacturer	MG Chemicals
Manufacturer Part Number	422C-55MLCA
Material Type	Silicone
Model	422C-55MLCA
Number of Pieces	1
Other Special Features of the Product	Cold Resistant, Crack Resistant, Dries Clear, Fast Drying, Heat Resistant, Strong
Specific Uses For Product	Industrial applications, high temperature environments, high humidity environments, corrosive environments
UPC	779008422069
Unit Count	1.86 Milliliters
Viscosity Level	Medium
Volume	55 Millilitres
Water Resistance Level	Water Resistant

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€ 77.53

Duties & taxes included

In stock

Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to France.

Secure transaction

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