KBE-703

Shin-Etsu Chemical Co., Ltd.

Shin-Etsu Chemical Co., Ltd. · KBE

KBE-703 is a chloropropyl-functional silane coupling agent, specifically 3-Chloropropyltriethoxysilane. It is designed to improve adhesion and compatibility in applications involving inorganic fillers and resins. KBE-703 provides enhanced moisture resistance, making it ideal for use in coatings, adhesives, and composites that require durable bonding and surface treatment under challenging environmental conditions.

Specifications

Identifiers

Chemical name
3-Chloropropyltriethoxysilane
CAS number(s)
5089-70-3
EC number
225-805-6
Molecular formula
C9H21ClO3Si
InChI key
KSCAZPYHLGGNPZ-UHFFFAOYSA-N
Synonyms
Chloropropyl-functional Silane Coupling Agent, (3-Chloropropyl)triethoxysilane, γ-Chloropropyltriethoxysilane, 3-(Triethoxysilyl)propyl Chloride

Technical specifications

Properties

PropertyValueUnit
Physical StateLiquid-
ColorColorless to yellowish, clear-
Boiling Point100°C
Melting Point< 0°C

Specifications

Test ConditionSpecificationValueUnitTest Method
-Purity by GC> 99%-
-AppearanceColorless or yellowish--
-Melting Point< 0°C-
-Boiling Point100°C-
Industries
CASECareChemical ManufacturingElectronics & ElectricalPlastics & Rubber
Product groups
Silanes & SiloxanesSilanesSilicones
Applications
PolymersRubber & plastic modifiersResinsOptical fibers
Functions
Adhesion promoterCross-linking agentSurface modifierAdditiveWater repellentFlow modifier
Market segments
Specialty chemicalsPlastics & rubber additivesElectronic components