Silane Coupling Agents | Adhesion Promoters | Epoxy Silanes | Surface Modifiers

SiSiB® PC3300

Synonym: 3-(2,3-Epoxypropoxypropyl)methyldiethoxysilane;

Countertype of DowCorning Z-6042, ShinEtsu KBE-402, Momentive Silquest WetLink 78, CoatOSil 2287

Chemical Structure


SiSiB® PC3300 is a clear colorless, low-odor liquid. SiSiB® PC3300 may be used as an adhesion promoter (coupling agent) for organic/inorganic interfaces, as a surface modifier (e.g. regulating surface polarity) or as a crosslinking agent (moisture-curing of polymers). When used as coupling agent, it generally reduces the sensitivity of the products' mechanical and electrical properties to heat and/or moisture.

Typical Physical Properties

Chemical Name: gamma-Glycidoxypropylmethyldiethoxysilane
CAS No.: 2897-60-1
EINECS No.: 220-780-8
Empirical Formula: C11H24O4Si
Molecular Weight: 248.39
Boiling Point: 123°C [5mmHg]
Flash Point: 122°C
Color and Appearance: Colorless clear liquid.
Density [25°C]: 0.978
Refractive Index [25°C]: 1.431
Purity: Min 98.0%;


SiSiB® PC3300 can be used to improve dry and wet strength in cured composites reinforced with glass fiber rovings.

SiSiB® PC3300 can be used to enhance wet electrical properties of epoxy-based encapsulate and packaging materials.

SiSiB® PC3300 can be used to eliminate the need for a separate primer in polysulfide and urethane sealants.

SiSiB® PC3300 can be used to improve adhesion in waterborne acrylic sealants and in urethane and epoxy coatings.


Net weight 200Kg steel drum or 1000L IBC container, for more details, please visit Packing Centre.

Technical Library

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