Products > MG Chemicals > Acrylic Laquer Conformal Coating

Acrylic Lacquer Conformal Coating

Acrylic Conformal Coating is a durable finish product that provides an all round protective coating for printed circuit boards against moisture, corrosion, and thermal shock. It protects and insulates electrical and electronic components and assemblies, including generators, motors, transformers, relays, and solenoid coils. For spraying, liquid can be thinned using M.G. Thinner Cleaner. Thin up to one half part thinner to one part coating. Also available in a micro tip pen format.


Standards IPC-TM-650 (dielectric withstand test)
IPC-CC-830 (humidity withstand test)
Specification Test Method Result


50-55, 20-25 Sec.s NBR
Dielectric Strength 1500 V/mil
Dielectric Constant ASTM-D-150-98  
Dissipation Factor ASTM-D-150-98 0.022
Volume Resistivity ASTM-D-257-99 8.72 x 1015 ohm · cm
Surface Resistivity ASTM-D-257-99 >2.8 x 1017 ohm · cm
Moisture Resistance IPC-TM-650, method PASS (1500 VDC)
Dielectric Withstanding Voltage IPC-TM-650, method PASS (1500 VDC)
Service Temperature Limit 65 °C (149 °F)
Tack free time 10 minutes at 20 °C (68°F)
Recoat time 2 minutes at 20 °C (68°F
Full cure 24 hours at 20 °C (68°F)
Solids by volume 18%
Solids by weight 25%


Part Number Mfr. Part # Sizes Available Description
MG-419B-55ML 419B-55ML 55ml (2 oz) Bottle
MG-419B-340G 419B-340G 340g (12 oz) Aerosol
MG-419B-1L 419B-1L 1L (1 quart) Liquid
MG-419B-20L 419B-20L 20L (5.3 gal) Liquid
Quick Links

Material Safety Data Sheets
MSDS Aerosol
MSDS Liquid


Relevant AppGuides
Protecting your circuit board from moisture


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