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

SiSiB® PC3400

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

Countertype of DowCorning Z-6044

Chemical Structure


SiSiB® PC3400 is a clear colorless, low-odor liquid. SiSiB® PC3400 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: 3-Glycidoxypropylmethyldimethoxysilane
CAS No.: 65799-47-5
EINECS No.: 265-929-8
Empirical Formula: C9H20O4Si
Molecular Weight: 220.34
Boiling Point: 100°C/4mmHg
Flash Point: 105°C
Color and Appearance: Colorless clear liquid
Density [25°C]: 1.02
Refractive Index [25°C]: 1.431
Purity: 97.0%;


SiSiB® PC3400 may improve dry and wet strength in cured composites reinforced with glass fiber rovings.

SiSiB® PC3400 may enhance wet electrical properties of epoxy-based encapsulate and packaging materials.

SiSiB® PC3400 may eliminate the need for a separate primer in polysulfide and urethane sealants.

SiSiB® PC3400 may 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.

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