KBE-903
Shin-Etsu Chemical Co., Ltd. · KBE
KBE-903 is a versatile aminosilane coupling agent, specifically 3-Aminopropyltriethoxysilane. It is widely used in composites, coatings, adhesives, sealants, thermosets, thermoplastics, glass fibers, and elastomers such as acrylics, epoxies, phenolics, melamines, urethanes, polycarbonates, polyesters, nylons, polystyrenes, PET, PBT, ABS, polysulfides, and silicones. KBE-903 improves adhesion between organic and inorganic materials, enhancing mechanical properties like tensile and compressive strength, as well as wetting and dispersion of pigments and fillers.
- High hydrolytic resistance
- Improved water resistance
- Good weathering properties
- Good adhesion
- High stability
- Good mechanical properties
- High performance
Specifications
Identifiers
- Chemical name
- 3-Aminopropyltriethoxysilane
- CAS number(s)
- 919-30-2
- EC number
- 213-048-4
- Molecular formula
- C9H23NO3Si
- InChI key
- WYTZZXDRDKSJID-UHFFFAOYSA-N
- Synonyms
- Aminosilane Coupling Agent, 3-(Triethoxysilyl)-1-propanamine, 3-Triethoxysilylpropylamine
Technical specifications
Properties
| Property | Value | Unit |
|---|---|---|
| Physical State | Liquid | - |
| Color | Light yellow, transparent | - |
| Odor | Amine odor | - |
| Boiling Point | 217 | °C |
| Vapor Pressure | < 10 (at 25 °C) | mmHg |
| Vapor Density | 7.6 (Air = 1) | - |
| Specific Gravity | 0.94 (at 25 °C) | - |
| Evaporation Rate | < 1 (Butyl acetate = 1) | - |
| Solubility in Water | Soluble | - |
| Flash Point | 98 (Open cup), 95 (Closed cup) | °C |
Specifications
| Test Condition | Specification | Value | Unit | Test Method |
|---|---|---|---|---|
| - | Appearance | Light straw | - | - |
| - | Purity by GC | 99.1 | % | - |
| at 25 °C | Specific Gravity | 0.951 | - | - |
| at 25 °C | Refractive Index | 1.4225 | - | - |
| at 760 mmHg | Boiling Point | 215 | °C | - |
| at 30 mmHg, low pressure | Boiling Point | 122 | °C | - |
- Industries
- Adhesives & SealantsCASECareCeramics & glassChemical ManufacturingElectronics & ElectricalPaints & Coatings
- Applications
- Paints & coatings formulationsFiller surface treatmentAdhesives & sealants formulationsGlass-reinforced compositesPolymersOptical fibers
- Functions
- Coupling agentDispersantWetting AgentAdhesion promoter
- Market segments
- AdhesivesGlass & opticsElectronic componentsPaints & coatings additivesSpecialty chemicals
Documents
- Request a copy
Technical Data Sheet (TDS)
Specifications & performance data
- Request a copy
Safety Data Sheet (SDS)
Safety information & handling