SD708 Silicone for circuit boards
◆ Product model: SD708 single component room temperature sulfide silicone rubber
◆ Features: This product is a single component silicone compound, white flow. No solvent, no corrosion, acid and alkali resistance, aging resistance, corrosion resistance, radiation resistance, good weather resistance, can be used in-60~260℃. This product has good electrical insulation performance, moisture-proof, shock-proof function and bonding performance, and can fully meet the bonding requirements of electronic components.
◆ Environmental requirements: comply with RoHS directive and relevant environmental requirements
◆ Reference standard: HG / T3947-2007 single component RT-silica sulfide adhesive / sealant
■Electrical/mechanical properties (at
|
argument |
symbol |
Test standard |
Performance index |
|
Hardness shore A |
HA |
GB/T 531.1 |
30±5 |
|
elongation% |
δ |
GB/T 528 |
≥300 |
|
Tensile strength MPa |
Rm |
GB/T 528 |
≥1 |
|
Shear strength MPa |
σc |
GB/T 7124 |
≥2.0 |
|
Dielectric strength kV/mm |
eo |
GB/T 1695 |
≥20 |
|
Dielectric constant 1.0MHz |
ε |
GB/T 1693 |
2.0 |
|
Volume resistivity Ω·cm |
ρ |
GB/T 1692 |
≥1.0×1014 |
■Limit parameters (at at tak = 25)
|
argument |
symbol |
Numerical value |
Unit) |
|
Table time |
TFT |
3～10 |
min |
|
Curing time |
TFT |
24 |
H |
|
Specific gravity |
s.g. |
1.2±0.1 |
g/cm³ |
|
Working temperature |
TOPR |
-60°C To +260°C |
|
|
Storage temperature |
TSTG |
10°C To +25°C |
|
■ apply Mainly used in a variety of electronic components, instruments, machinery, stone bonding, sealing, coating and other fields.
