SD902 Silicone Sealant for Power Supplies
◆ Product model: SD902 single component room temperature sulfide silicone rubber
◆ Characteristics: SD902 is a high flame retardant single component room temperature silicone sulfide rubber composed of polysiloxane, high flame retardant material, crosslinker agent, catalyst and other related materials. This product has good acid and alkali resistance, aging resistance, corrosion resistance, radiation resistance and weather resistance, and the temperature resistance can be widely used in-60~ 260℃. The product is in line with UL-94V0, with good electrical insulation performance and high flame retardant performance, and can fully meet the flame retardant requirements of electronic components, in line with the RoHS instruction and related environmental protection requirements
■Electrical/mechanical properties (At TA=25℃)
argument |
symbol |
Test standard |
Performance index |
Hardness shore A |
HA |
GB/T 531.1 |
55±5 |
elongation % |
δ |
GB/T 528 |
≥200 |
Tensile strength MPa |
Rm |
GB/T 528 |
≥2.0 |
Shear strength MPa |
σc |
GB/T 7124 |
≥2.0 |
Dielectric strength kV/mm |
eo |
GB/T 1695 |
≥18 |
Dielectric constant 1.0MHz |
ε |
GB/T 1693 |
2.5 |
Volume resistivityΩ·cm |
ρ |
GB/T 1692 |
≥1.0×1014 |
■Limit parameter (AtTA =25℃)
argument |
symbol |
numerical value |
uint |
Surface drying time |
TFT |
2~5 |
min |
Curing time |
TFT |
24 |
H |
Specific gravity |
s.g. |
1.5±0.1 |
g/cm³ |
Operating temperature |
TOPR |
-60°C To +260°C |
|
Storage temperature |
TSTG |
10°C To +25°C |
■ use This product is mainly used for high-grade power supply (communication power supply. Flat panel TV power supply) insulation bonding and sealing of high voltage parts of CRT imaging tube and DY deflection coil; also applied in fixing and bonding of PCB sensitive components, capacitor, triode, etc. This product is non-toxic, odorless and not corrosive to metal.
■ Packaging, storage and transportation requirements Packaging with aluminum leather tube or plastic tube, with 100ml aluminum pipe and 300mlPE pipe, this product should be stored in a dry and cool place (below 26℃). The shelf life of this product is within 6 months from the manufacturing date.
■ Usage and precautions Before use, clean the bonded surface, the coating thickness should not exceed 6mm, the drying time of this product table is about 10 minutes, and achieve full curing after 24 hours. After the operation, the unused glue should be immediately tightened with the cap and sealed for preservation. If the pipe mouth is skinned or partially solidified when used again, it should be used as usual after removal, which will not affect the use effect;