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Product Description

Bis[3-(Triethoxysilyl)Propylamine is known for creating endcapped structure by reacting with free isocyanate groups and reducing yellowing tendency of sealants. It has high boiling point of 217 degrees Celsius with flash point of 93 C. This chemical is highly appreciated for having ability to improve UV resistance of endcapped polyurethanes. Bis[3-(Triethoxysilyl)Propylamine belongs to category of silane coupling compounds and also finds application as additive in paints & coatings to improve substrate adhesion ability. It has molecular formula C18H43NO6Si2 and molar mass of 425.71 g/mol. This chemical also serves as finishing & sizing agent for glass fiber & fabric composites.





Bis[3- (triethoxysilyl) propylamine

SpecificationsSilane coupling agent Bis(triethoxysilylpropyl)amine
  • CAS No.: 13497-18-2
  • Purity: 98%

Chemical Name:

Silane coupling agent Bis(triethoxysilylpropyl)amine
Synonym: 3, 3'-Bis(triethoxysilyl)dipropylamine; 3-(Triethoxysilyl)-N-(3-(triethoxysilyl)propyl)-1-propanamine

Trade name: KH-1171

  • Specification: Yellowish transparent liquid.
  • CAS NO.: 13497-18-2
  • Formula: C18H43NO6Si2
  • Molecular Weight: 425.71
  • Boiling Point: 160
  • Flash Point: 140
  • Density: 0.97
  • Refractive Index: 1.429                
  • Purity: 98%

Bis(triethoxysilylpropyl)amine (CAS No. 13497-18-2), Silane coupling agent NQ-S01, is an important additive for many applications.

Silane-endcapped Polyurethanes: Silane-terminated polyurethanes can be prepared by reacting traditional NCO-terminated urethane prepolymers with NQ-S01. It can react very fast with free isocyanate groups and lead to a high converted silane-endcapped product. Side reactions can be significantly reduced.

  • The most recommended silane for endcapping Polyurethanes. It leads to colorless low-viscosity PU prepolymers with improved UV stability and reduced yellowing tendency of sealants.
  • Glass fiber/glass fabric composites: As a finish or size constituent
  • Mineral fiber insulating materials and abrasives: As an additive to phenolic resin binders
  • Foundry resins: As an additive to phenolic, furan and melamine resins
  • Sealants and adhesives: As a primer or additive and for chemical modification
  • Mineral-filled polymers (composites) or HFFR cables: For pretreatment of fillers and pigments
  • Paints and coatings: As an additive and primer for improving adhesion to the substrate. As a primer for glass and metal.

Packing & storage:

  •  200L steel drum or 1000L IBC drum
  • Store in a cool, dry place. Avoid light.


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