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

SiSiB® PC3500

Synonym: (2-(7-oxabicyclo[4.1.0]heptan-3-yl)ethyl)trimethoxysilane

Countertype of DowCorning Z-6043, ShinEtsu KBM-303, Silquest A-186
Chemical Structure

SiSiB® PC3500 is a clear colorless, low-odor liquid. SiSiB® PC3500 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: 2-(3,4-Epoxycyclohexyl)-ethyltrimethoxysilane
CAS No.: 3388-04-3
EINECS No.: 222-217-1
Empirical Formula: C12H22O4Si
Molecular Weight: 246.38
Boiling Point: 310°C/760mmHg
Flash Point: 112°C
Color and Appearance: Colorless clear liquid
Density [25°C]: 1.069
Refractive Index [25°C]: 1.427
Purity: Min 98.0%;

Solubility: SiSiB® PC3500 is soluble in water after hydrolysis, alcohol, acetone and most aliphatic esters at normal application levels under five percent. Hydrolysis releases methanol.
SiSiB® PC3500 has a more reactive epoxy group when compared to the more common SiSiB® PC3100. This enhanced reactivity is due to the added strain put on the epoxy group by the presence of the second ring; the cyclohexyl. The increased epoxy reactivity combined with the greater organic character from the cyclohexyl group often results in enhanced mechanical properties and better wet-strength retention of properties when compared to SiSiB® PC3100.
SiSiB® PC3500 can be used to improve dry and wet strength in cured composites reinforced with glass fiber rovings.
SiSiB® PC3500 can be used to enhance wet electrical properties of epoxy-based encapsulate and packaging materials.
SiSiB® PC3500 can be used to eliminate the need for a separate primer in polysulfide and urethane sealants. SiSiB® PC3500 can be used to improve adhesion in waterborne acrylic sealants and in urethane and epoxy coatings
Net weight 200Kg steel drum or 1000Kg IBC container. In the unopened original container SiSiB® PC3500 has a shelf life of one year in a dry and cool place. For more details, please visit Packing Centre.
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