Condensation Silicone for Electronic Encapsulation

Characteristic and Usage: This series of products is two-component condensation liquid silicone rubber. It has excellent electric resistance, moisture resistance and shock proof. The electric component work on well on the rigorous conditions.

Typical properties: (Non-standard values) Properties 8540 8550 8560 8530 8630 8730 Mixing proportion 10:1/100:2 10:1 10:1 10:1 4:1 4:1 Color Black Black Black, Transparent Achromatous transparent Achromatous transparent Achromatous transparent Viscosity (basic rubber/vulcanization agent)/m Pa.s 5000 1500 1400 1800 1000 8000 Operation time/h 0.5 1 1 1 0.5 2 Surface cure time/h 4 24 20 24 24 24 Physical properties after vulcanization Hardness / Shore A 35 10 8 13 10 13 Tensile strength / MPa 1.0 0.8 0.8 1.0 2.0 2.0 Elongation rate/ % 50 200 200 100 200 200 Density / g.cm-3 1.3 1.0 1.0 1.0 1.0 1.0 Heat conducting coefficient / W.(m.K)-1 0.6 0.3 0.3 0.3 0.3 0.3 Electrical properties after vulcanization Volume electric resistance rate / Ω.cm 1×1014 1×1014 1×1014 1×1013 1×1013 1×1014 Puncture voltage / kV.mm-1 20 20 20 22 20 20 Dielectric constant (50Hz) 3.0 3.0 3.2 3.2 3.2 3.2 Dissipation factor (50Hz） 0.006 0.008 0.007 0.007 0.007 0.007 Relevant certification ROHS ROHS ROHS ROHS ROHS ROHS Characteristic Middle-hardness, quick-drying Low hardness, quick-drying Low –hardness, quick-drying High transparency, cured at room temperature Super-transparency, high strength High transparency, high strength Usage HID Stabilizer, Electronic components and parts LED Wall washer, Guardrail tube, LED display etc. encapsulated LED display etc. encapsulated, waterproof lights LED Wall washer encapsulated Guardrail tube, waterproof lights High quality LED soft and hard light encapsulated High quality LED soft and hard light waterproof epoxy Application: 1.

Mixing: component A and component B are mixed according to 1:1 (weight or volume) by hand or machine. 2. Debubbling: If the final product is sensitive to air, the rubber need vacuum to debubble after mixing. 3. Operating time: the viscosity will increase after a short time, and it will be twice after 30 minutes at normal temperature.

But it can keep flowing during 12 hours. 4. Seal the curing agent promptly after using avoiding hydrolysis. Package, Storage, Transportation and Attention: 1. Package: Rubber: 10kg/ Plastic pail; Vulcanizing agent: 2kg/ Iron pail. 2. Store in dry, well ventilated area, under shade, avoid rainwater and direct sun shine. 3. Storage period is 6 months.

Stir uniform if its viscosity increases before using. Product exceeds shelf life may still be useful if meets specification. 4. These products are non-dangerous goods, but we must pay attention when using avoiding touching curing agent with skin and eyes. Once exposed with skin, clean immediately with detergent and water.

If splash into eyes, wash them with flowing water at least 15 minutes and then consult a doctor. 5. The electrical properties should be tested in 72 hours because of the reaction mechanism.