The SV 660X A/B is a solvent-free, two-component casting resin, based on Polyurethane. The resin (A) consists of organic compounds withhydroxyl-groups whereas the hardener (B) is basedon isocyanates. By mixing both components in a ratio by weight of 85:15 a flexible casting resin is achieved via chemical reaction. The product exhibits no measurable change in volume after curing.
Properties
|
Test Standard
|
PART A
|
PART B
|
Appearanc
|
/
|
White, Black liquid
|
Brown liquid
|
Viscosity, cps, 25ºC
|
GB/10247-2008
|
8000
|
31
|
Mixed Viscosity, cps, 25ºC
|
GB/10247-2008
|
1400
|
|
Density, g/cm3, 25ºC
|
GB/T 13354-92
|
1.45±0.05
|
1.01±0.05
|
Mix rate, by weight
|
/
|
A : B = 85:15
|
|
Potting time,100g, min, 25ºC
|
GB/T13477.5-2002
|
14
|
|
Cured condition
|
GB/T13477.5-2002
|
24h(25ºC)/ 2h(80ºC)
|
|
Hardness, shore D
|
GB/T 531.1-2008
|
30
|
|
Thermal Conductivity, W/M.K
|
GB/T 10297-1998
|
0.55
|
|
Tensile strength, Mp
|
GB 6328-86
|
2.7
|
|
Shear strength, N/mm
|
GB 6328-86
|
Fe: 6Mpa; Al 7.2Mpa
|
|
Temperature Range,ºC,
|
DSC
|
-50~130
|
|
Flammability
|
ANSI/UL-94-1985
|
V-0
|
It is specifically formulated for automotive sensors, switches, transformers and other electrical devises requiring environments protection.
Avoid the sun and heat, stock under sealing.
Shelf life at 25ºC : Part A 12 months, part B 12 months; if expired should be tested first.
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