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Masil® SF 305

Clear liquid

MASIL SF 305 is a reactive silicone polymer containing silicon-hydride end groups that has been specifically designed for use with MASIL SF 201 and MASIL SF 202 polymers to produce cured silicone elastomers. MASIL SF 305 will react with any vinyl-functional silicone polymer in the presence of a noble metal catalyst. MASIL SF 305 provides extended chain lengths in silicone elastomers that provide protection against moisture, dirt, and other environmental contaminants in electrical or electronic encapsulation applications.

Product Details

Attribute Value
Typical Properties
Appearance Clear liquid
Silicone Content (%) 100
Solids 99.0 – 100.0
Viscosity 385 – 550
Shelf Life (Mos) 24
Flash Point (°F, PMCC) >200
Specific Gravity (25°C) 0.98
Application Group Application Description
Electronics Encapsulants Provides extended chain lengths in silicone elastomers that provide protection against moisture, dirt and other environmental contaminants in encapsulants.
Other Reactive Fluids

Other Reactive Fluids

ProductDescriptionViscosityAppearance
Masil® SF 201Vinyl terminated silicone (1000 cSt)850 - 1,150Clear colorless liquid
Masil SF 202Vinyl terminated silicone (200 cSt)180 - 250Clear colorless liquid
Masil SF 305Hydride terminated silicone385 - 550Clear liquid
Masil SF MHMethylhydrogen siloxane homopolymer20.0 - 40.0Clear colorless liquid
Masil SFR20000PCHydroxy terminated polydimethylsiloxane (20000 cSt)18,000 - 22,000Clear liquid
Masil SFR2000PCHydroxy terminated polydimethylsiloxane (2000 cSt)1,800 - 2,200Clear liquid
Masil SFR3500Hydroxy terminated polydimethylsiloxane (3500 cSt)3,150 - 3,850Clear liquid
Masil SFR750Hydroxy terminated polydimethylsiloxane (750 cSt)675 - 825Clear liquid
Masil XL 1 CrosslinkerMethylhydrogen dimethylsiloxane25.0 - 50.0Clear liquid
Masil SFR70Hydroxy terminated polydimethylsiloxane (70 cSt)75Clear liquid