Silquest™ A-186

1 of 96 products in this brand
Silquest™ A-186 silane adhesion promoter, can result in better electrical and/or mechanical properties in a variety of applications and industries. From enhancing electronic encapsulants to enabling improved sealant formulations, Silquest™ A-186 silane provides both epoxy and silane functionalities that promote adhesion in a range of formulations, including SPUR+ prepolymer, urethane, epoxy, silicone, and acrylic caulks, coatings, sealants and adhesives.

Functions: Adhesion Promoter, Coupling Agent

Chemical Family: Epoxy & Epoxy Derivatives, Silanes

End Uses: Waterborne Adhesive, Waterborne Coating, Waterborne Sealant

Compatible Polymers & Resins: Acrylics, Epoxies (EP), Polysulfide Rubber, Polyurethanes (PU), Silicones

Features: Excellent Adhesion, Improved Flexibility

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
Technologies

Features & Benefits

Product Highlights
  • Epoxy Functionality : 
    • Epoxy ring is reactive with many organic functionalities.
    • Epoxy functionality will offer non-yellowing adhesion in many resin systems.
    • May improve flexibility of systems vs. other adhesion promoters.
  • Trimethoxy Silane Functionality : 
    • Bonds to inorganic substrates to provide excellent wet and dry adhesion.
    • Very fast hydrolysis rate.
  • Enhanced electrical properties of epoxy based electronic encapsulant and packaging materials, resulting from improved bonding between resin and substrate or filler.
  • An excellent candidate for waterborne applications such as acrylic and vinyl-acrylic caulks.
  • Improved adhesion to glass, and metal substrates can be obtained in epoxy, polysulfide, urethane and acrylic bases adhesives, sealants and caulks.
  • SPUR+ perpolymer applications benefit from adhesion without decrease in elongation and yellowing.
  • Urethane applications benefit from enhanced adhesion to glass and metal substrates, while providing improved shelf stability over amino silane alternatives. Typical use level ranges from 0.5 to 1.5 pbw.

Applications & Uses

Coating Type

Properties

Physical Form
Appearance
Clear, pale
Typical Properties
ValueUnitsTest Method / Conditions
Flash Point113°C
Viscosity (25°C)5cSt
Flash Point235°F
Flash Point113 (235)°C (°F)