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Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
SiSiB® PC3500
SiSiB® PC3500

2-(3,4-Epoxycyclohexyl)-ethyltrimethoxysilane

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.


SiSiB® PC3500 silane oligomer is the equivalent of Momentive's A-186, Dow's Z-6043, ShinEtsu's KBM-303 silane.


SiSiB® PC3500

Technical Data



CAS No.

3388-04-3

EINECS No.

222-217-1

Formula

C12H22O4Si

Molecular Weight

246.38

Boiling Point

310°C [760mmHg]

Flash Point

112°C



Color and Appearance

Colorless clear liquid

Density 25/25°C

1.069

Refractive Index

1.427[25°C]

Min. Purity

98.0%




Caution: SiSiB® PC3500 is soluble in water after hydrolysis, alcohol, acetone and most aliphatic esters at normal application levels under five percent. Hydrolysis releases methanol.


Application


  • 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 epoxy silane 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 silicone coatings.


Packing and Storage


  • SiSiB® PC3500 is supplied in 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.


Documents

DownloadSiSiB® PC3500 Technical Data Sheet
DownloadSiSiB® PC3500 Safety Data Sheet
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