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Silquest* Silanes


Generating covalent bonds between two different materials or two molecules of the same material is one way to raise the performance of these systems – whether the desired enhancement is better adhesion; improved chemical, scrub or corrosion resistance; superior mechanical or electrical properties; or longer-lasting durability. Our customers have employed our family of Silquest silanes for just such an array of benefits. Versatile and possessing the ability to react with a wide variety of organic and inorganic materials, Silquest silanes work effectively as coupling agents, crosslinking agents and surface modifiers. Silquest silanes have been used in high-strength crosslinked plastics, easily dispersed fillers, and resilient adhesives and coatings.

The key to the Silquest line's versatile efficacy in adhesion promotion and coupling is the difunctionality of these organofunctional silanes; two types of reactivity built into the molecular structure. A functional group at one end of the molecule is designed for reactivity with an organic resin, while the other end has the ability to bond with a variety of inorganic materials as well as itself.

At ambient temperatures and humidity conditions, Silquest silanes can crosslink polymer molecules to create a three-dimensional network. This crosslinking may result in improved thermal stability and creep resistance, as well as hardness and chemical resistance in coatings, adhesives, sealants and composites. Crosslinking may also improve wet adhesion, enable primerless adhesion to many substrates, and improve weatherability and durability.

As a coupling agent between resins and fibers, Silquest silanes may improve fiber strand integrity and improve the wet strength retention and electrical characteristics of fiber-reinforced composites. Mineral filled polymers may also benefit from Silquest silanes yielding enhanced filler dispersion and processing ease. And coupling with Silquest silanes may enhance the mechanical properties of coatings and adhesives, including the strength, abrasion and chemical resistance properties of the end product.

Momentive works closely with our customers to find the Silquest solution that best meets their needs, with their particular resin type and application. Potential application areas for the Silquest silane product line include: 

  • Adhesives
  • Coatings/inks
  • Fiber-reinforced composites
  • Filler treatment
  • Polymer modification
  • Rubber and elastomers
  • Sealants
  • Thermoplastics

Discover how our Silquest silane products may enhance the performance of your materials and systems.

* Silquest is a trademark of Momentive Performance Materials Inc

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Silquest * A-1170 Silane

Silquest* A-1170 silane is a secondary aminofunctional bis-silane that may find use as an adhesion promoter and coupling agent in coatings, adhesives & sealants as well as general industrial applications. Learn more.

Silquest A-171* Silane

Silquest* A-171 silane results in Si-O-Si crosslink sites that are highly resistant to the effects of exposure to moisture, chemicals and UV rays. Learn more.

Silquest A-187* Silane

Silquest A-187* silane is a glycidal epoxy functional silane that may find use as an adhesion promoter in SPUR+* prepolymers, epoxy, polysulfide, silicone systems for caulks, coatings, adhesives and sealants. Learn more.

Silquest* A-1110 Silane

Silquest* A-1110 silane, a primary amino silane, is a candidate for use as an adhesion promoter in silane modified urethane (SPUR* prepolymer), filled silicone, epoxy and 2 part urethane adhesives and sealants. Learn more.

Silquest* A-151NT Silane

Silquest* A-151NT silane is an excellent candidate for crosslinking organic polymers and offers optimal vinyl and silane functionality. Learn more.

Silquest* A-1524 Silane

Silquest* A-1524 silane can promote adhesion between a wide range of resins, substrates, fillers and reinforcements and is 100% active. Learn more.

Silquest* A-174NT Silane

Silquest A-174NT silane can help improve the adhesion and strength of materials that cure via a free radical mechanism. Learn more.

Silquest* A-186 Silane

Silquest* A-186 and A-187 silanes combine the functionality of epoxy with the versatility of trimethoxy silane to promote adhesion for SPUR+*, urethane, epoxy, polysulfide and silicone.

Silquest* A-1871 Epoxy Silane

Silquest A-1871 epoxy silane can help enhance adhesion to glass and metal substrates and bonding in electronic encapsulants. Learn more.

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*The marks followed by an asterisk (*) are trademarks of Momentive Performance Materials Inc.