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Silicone Conformal Coating |
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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 |
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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 |
14.4 cps |
Solvents |
xylene, acetone |
Percent solids by weight |
25% (liquid);
15% (aerosol) |
Tack free time |
30 minutes at 20°C |
Full cure |
48 hrs. @ 20°C (68°F)
60 min. @ 65°C (149°F) |
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 |
Part Number |
Mfr. Part # |
Sizes Available |
Description |
MG-422-55ML |
422-55ML |
2 oz. (55 ml) |
Liquid |
Silicone Conformal Coating W/UV IND. |
MG-422A-340G |
422A-340G |
340 gram (12 oz) |
Aerosol |
Silicone Conformal Coating Pen |
422A-P |
422A-P |
5ml (0.16 oz.) |
Pen |
Silicone Conformal Coating |
MG-422-1L |
422-1L |
950ml (1 quart)) |
Liquid |
MG-422-4L |
422-4L |
4L (1 gal) |
Liquid |
MG-422-20L |
422-20L |
20L (5.3 gal) |
Liquid |
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