UL Recognized, CSA Tested, Flame Class 94 V-0

Ideal for high temperature environments. Silicone Conformal coating is a flexible finish product that provides a 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.

Directions of Use

Spray an even coat with a minimum application of .048 grams per square centimeter. Application measurements can be achieved by first weighing the can, then spraying an even coat, then reweighing the can. Knowing the dimensions of your board, one can calculate as to whether your application is within certified limits. This method will give you maximum surface area coverage of 7080 cm² (7.6 ft²).

Best results will be obtained by applying to thoroughly cleaned and dried parts or materials. It is essential that surfaces be free of any trace of grease or organic substances.

At room temperature, the product will tack free in approximately 30 minutes, and full cure will be achieved in approximately 48 hours.

Curing may be accelerated by applying moderate heat with either a convection oven or infrared lamps. We recommend curing in a convection oven at 65°C (149°F) for one hour, but other temperature and time combinations can work well. Heat curing will improve the physical strength of this coating.

Specifications

Standards   CSA tested (file # L0 4000-4068) UL Recognized (file # E203094) Meets UL 94 Flame Class, 94V-0 Properties Color Clear Service temperature range -40°C to 200°C (-40°F to 350°F) Specific gravity of liquid 0.96 Liquid viscosity 11 cps (at 25°C, 100 RPM, Brookfield) Solvents xylene, acetone Percent solids by weight 25% (liquid); 15% (aerosol) Tack free time 5-7 minutes at 22°C Full cure 48 hrs. @ 20°C (68°F) 60 min. @ 65°C (149°F) Hardness 75 Shore D Dielectric Properties Dielectric strength 80 kV/mm (2000 V/mil) Dielectric constant @ 100MHz 2.7 Loss angle tangent @ 100 MHz 0.001 Volume resistivity, Ohm * cm 1 x 1014 Dielectric withstanding voltage @ 1,500 VDC for 1 min (IPC-TM-650) Pass

Available Sizes

Catalog Number Sizes Available Description 422-55ML 2 oz (55 mL) Liquid Silicone Conformal Coating with UV ind. 422A-340G 340 gram (12 oz) Aerosol Silicone Conformal Coating Pen 422A-P 5 mL (0.16 oz) Pen Silicone Conformal Coating 422-1L 950 mL (1 quart) Liquid 422-4L 4 L (1 gallon) Liquid 422-20L 20 L (5.3 gallon) Liquid