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422B Silicone Conformal Coating

SILICONE ► For high temp. environments
> Dielectric Strength:2000V/mil
> Flexible finish
> Meets IPC-TM-650

 
  • Overview
  •     

Silicone Conformal Coating
422B

UL Recognized for Flame Class 94 V-0
Ideal for high temperature environments. Silicone Conformal Coating (422B) 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. 

Available Size:

Model

Available Size

Description

422B-55ML

55 ml (2 oz)

Liquid

422B-340G

340 gram (12 oz)

Aerosol

422B-1L

950 mL (1 quart)

Liquid

422B-20L

20 L (5.3 gal)

Liquid

 

 

標準

UL 認證, 耐燃等級 94 V-0 (file # E203094)

固化前特性

相位

Liquid

顏色

Clear

氣味

Ethereal

比重

0.90

黏度

13 cps @ 23°C Brookfield 100 rpm Spindle 4

閃火點

-18°C / -0.4°F

溶劑

二甲苯, 丙酮

固體含量

25% (liquid);15% (aerosol)

VOC 含量 (液體)

50.0 % by wt. 430 grams / liter

VOC 含量 (噴霧罐)

34.5 % by wt. 296.7 grams / liter

固化時間

指乾時間

5-7 minutes at 22°C / 71.6°F

完全固化

48 hrs. @ 20°C / 68°F 20 min. @ 65°C / 149°F

電氣特性

絕緣強度

IPC-TM-650

1056 volts/mil @ 0.015 inch thickness

介電常數

ASTM 150-98

 

@ 60MHz

2.35 @0.02" thickness

@ 1 MHz

1.99 @0.02" thickness

耗損因數

ASTM 150-98

 

@ 60MHz

0.037 @0.02" thickness

@ 1 MHz

0.012 @0.02" thickness

體積電阻率

ASTM D257

1.2 X 1015 ohm · cm

表面電阻率

ASTM D257

4.5 X 1016 ohm · cm

熱特性

熱膨脹係數 (-40°C to 160°C)

IPC-TM-650

253.3 ppm/°C

軟化點

31.4°C