Acrylic Lacquer Conformal Coating 419B 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. Clear tough protective coating Protects against static discharge service temperature limits: 105C solids by volume: 18% solids by weight: 25% viscosity: 50-55, 20-25 Sec.s NBR. Easy to repair Remove with M.G. Chemicals cat 8310 Conformal Coating Stripper Clean up with M.G. Chemicals cat 435 Conformal Coating Thinner Cleaner Specifications Standards IPC-TM-650 (dielectric withstand test) IPC-CC-830 (humidity withstand test) Specification Test Method Result Viscosity 50-55, 20-25 Sec.s NBR Dielectric Strength 1500 V/mil Dielectric Constant ASTM-D-150-98 3.25 Dissipation Factor ASTM-D-150-98 0.022 15 Volume Resistivity ASTM-D-257-99 8.72 x 10 ohm cm 17 Surface Resistivity ASTM-D-257-99 >2.8 x 10 ohm cm Moisture Resistance IPC-TM-650, PASS (1500 VDC) method 2.6.3.4 Dielectric Withstanding Voltage IPC-TM-650, PASS (1500 VDC) method 2.6.7.1 Service Temperature Limit 105 C (221 F) Tack free time 10 minutes at 20 C (68F) Recoat time 2 minutes at 20 C (68FFull cure 24 hours at 20 C (68F) Solids by volume 18% Solids by weight 25% Available Sizes Catalog Number Sizes Available Description 419B-55ML 55ml (2 oz) Bottle 419B-340G 340g (12 oz) Aerosol 419B-1L 1L (1 quart) Liquid 419B-4L 4L (1 gal) Liquid 419B-20L 20L (5.3 gal) Liquid 2000 - 2007 MG Chemicals. All rights reserved.