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  • Epoxypropoxypropyl trimethoxysilane IOTA-60

    3-(2,3-Epoxypropoxypropyl)trimethoxysilane IOTA-60

    Chemical Name: 3-(2,3-Epoxypropoxypropyl)trimethoxysilane

    Product Article: IOTA-60

    Molecular Construction:


    3-(2,3-Epoxypropoxypropyl)trimethoxysilane is an epoxy functional silane, it is a clear, light straw liquid.

    3-(2,3-Epoxypropoxypropyl)trimethoxysilane may be used as a coupling agent in polysulfide and polyurethane caulks and sealants, in mineral-filled or glass-reinforced thermosets and thermoplastics, and in glass roving size-binders.

    It is particularly employed as an adhesion-promoting additive in water borne systems, e.g. improving the adhesion of acrylic latex sealants.

    Typical Physical Properties:

    Molecular Formula: C9H20O5Si

    Molecular Weight: 236.4

    Appearance: Colorless transparent liquid

    Density: 1.065-1.075

    Boiling Point: 290℃(760mmHg)

    Refractive Index: 1.4270 (25℃)

    Viscosity: 3cst


    3-(2,3-Epoxypropoxypropyl)trimethoxysilane reacts with water. Take precautions to avoid contact with atmospheric moisture.


    1.Improves dry and wet strength in cured composites reinforced with glass fiber rovings.

    2.Enhances wet electrical properties of epoxy-based encapsulate and packaging materials.

    3.Eliminates the need for a separate primer in polysulfide and urethane sealants.

    4.Improves adhesion in waterborne acrylic sealants and in urethane and epoxy coatings.

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