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Used in a wide range of applications as a silane coupling agent,silane adhesion promoter,silane hydrophobing agent,silane dispersing agent,silane crosslinking agent,silane moisture scavenger,polypropylene catalyst donor silane,silicate Stabilizer,polyurethane endcapper silane,silane drying agent,silane curing agent,silane reinforcer,silylating agent,silane reducing agent,silyl building blocks and synthons etc.;
Widely used in cosmetics,deodorant,water repelling windshield coating,food additives and some soaps.
  • Siwin-O41
  • Siwin
  • Siwin-O41
  • 3277-26-7

Silane Siwin-O41

Typical Physical Properties

Appearance: Colorless clear liquid.

CAS NO.: 3277-26-7


Formula: C4H14OSi2

Molecular Structure

Molecular Weight: 134.32

Boiling Point: 71 °C (760mmHg)

Flash point: -20 °C

Density ( P 20) g/cm3: 0.74-0.76

Refractive Index (n25D): 1 .3665-1.3710

Acid value: 20 ppm max.


Used in a wide range of applications as a silane coupling agent, silane adhesion promoter, silane

hydrophobing agent, silane dispersing agent, silane crosslinking agent, silane moisture scavenger,

polypropylene catalyst donor silane, silicate Stabilizer, polyurethane endcapper silane, silane drying

agent, silane curing agent, silane reinforcer, silylating agent, silane reducing agent, silyl building blocks

and synthons etc.;

Widely used in cosmetics, deodorant, water repelling windshield coating, food additives and some soaps.

Packaging and Storage

160kg/Plastic drum

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