Masil® SF 201

Clear Colorless Liquid

MASIL SF 201 is a vinyl-terminated silicone polymer that may be heat-cured or room temperature cured (RTV). It is normally cured with 2 to 4% by weight of MASIL XL-1 Crosslinker system and a catalyst at 20 ppm that must be incorporated into the polymer, not the crosslinker. This polymer vulcanizes via an addition reaction and does not produce volatile gases during curing. MASIL SF 201 can be used as the base polymer in silicone elastomers to provide a noncorrosive protective shield against water, dirt and other harmful contaminants in mold-making rubber and electrical / electronic encapsulation applications.

Product Details

Attribute Value
Typical Properties
Appearance Clear Colorless Liquid
Silicone Content (%) 100
Solids 97.5 – 100.0
Viscosity 850 – 1,150
Shelf Life (Mos) 24
Flash Point (°F, PMCC) > 300
Specific Gravity (25°C) 0.965
Refractive Index 1.404
Iodine Value (%) 2.20 – 3.60
Water (%) 0.10 Max.
Application Group Application Description
Household Care Household Cleaners Used in leather, glass and vinyl cleaners; Provides wetting and softening.
Industrial Intermediates Mold Release Provide release and lubrication.
Lubricants Industrial Lubricants Provides lubrication.
Paints & Coatings Polish Used in auto polishes; Provides wetting and gloss.
Textile & Leather Textile Softener Provide wetting and softening.
Other Reactive Fluids

Other Reactive Fluids

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