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Sandao 704 Silicone Rubber High Temperature Resistant Sealant LED Lamp Electronic Components Bonding Fixed Waterproof Insulation Silicone

Sandao 704 Silicone Rubber High Temperature Resistant Sealant LED Lamp Electronic Components Bonding Fixed Waterproof Insulation Silicone

SD704
SD704W is a one-component room-temperature vulcanizing silicone rubber composed of polysiloxane, high-purity fillers, crosslinkers, catalysts, and other related materials. This product exhibits excellent resistance to acids, alkalis, aging, corrosion, radiation, and weathering, and can be used in temperatures ranging from -60°C to 260°C. It also exhibits excellent electrical insulation and bonding properties, fully meeting the bonding requirements of electronic components and complying with the RoHS directive and related environmental regulations.

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Features Technical Indicators Overall Dimension

Used for bonding and filling between electronic and electrical products. Bonding and filling between circuit boards and other materials, with excellent adhesion and no corrosion to copper and PC (polycarbonate).

Test items	SD704W
Appearance	White thixotropic paste
Base rubber viscosity (mpa.s)	( 2.0-12 ) ×10⁴
Specific gravity (g/ml)	1.2-1.4
Surface drying time min 25℃RH: 60%	≤20
Hardness (JISA)	≥45
Elongation (%)	≥150
Tensile strength (MPa)	≥2.5
Shear strength (MPa)	≥2.0
Volume resistivity (Ω.cm)	2.0×10¹⁴
Dielectric strength (kv/mm)	≥20
Dielectric constant (1.2MHz)	2.8
Dissipation factor (1.2MHz)	0.001
Linear shrinkage (%)	≤0.6
Complete curing time (h)	Twenty four