Knowde Enhanced TDS
Identification & Functionality
- CASE Ingredients Functions
- Technologies
- Product Families
Features & Benefits
- CASE Ingredients Features
- Product Highlights
Polyamino Functionality
- Provides reactive site for amino-reactive resins
- Good wetting of substrates
Silquest A-1120 Trifunctional Silane - Excellent adhesion to inorganic substrates such as metal, glass, etc
- Superior adhesion to plastics when employed in SPUR+* prepolymer technology-based adhesives or sealants
Silquest A-2120
Difunctional Silane
- Excellent adhesion to inorganic
substrates such as metal, glass, etc -
Superior adhesion to plastics when employed in
SPUR+ Technology-based adhesives or sealants -
Provides as much as a 35% improvement in
elongation over Silquest A-1120 silane -
Provides superior stability in waterborne systems
over other trifunctional amino silanes
Applications & Uses
- Applications
- Compatible Polymers & Resins
- Recommended Uses
Silquest A-1120 silane and Silquest A-2120 silane may be used as additives, helping to eliminate the need for special primers in numerous bonding applications. Specific systems that demonstrate improved adhesion when Silquest A-1120
silane or Silquest A-2120 silane are used include:RTV Silicones and Hybrid Silane-Crosslinked Sealants
Silquest A-1120 silane or Silquest A-2120 silane addition to one- and two-part silicone-crosslinked sealants improves adhesion to a variety of substrates, including glass, steel,
aluminum and concrete. These silanes can dramatically enhance adhesion to a wide array of plastics when used in combination with the Momentive Performance Materials
SPUR+* Technology for silylating urethane polymers.(For formulation and silylated prepolymer preparation information, please refer to Literature Bulletin 112-026-30, “Silquest Organofunctional Silanes – Crosslinkers and Adhesion Promoters for Urethane Adhesives and Sealants”. This bulletin
may be obtained from the Momentive Performance Materials sales office nearest you.)Silquest A-2120 silane, a difunctional variant of Silquest A-1120 silane, can be utilized to provide an enhanced adhesion performance and as much as a 35% increase elongation
perfomance.Loading levels of 0.5 to 2.0 percent by weight are typically recommended for both products.
The performance of Silquest A-1120 silane in a one-part SPUR+ prepolymer-based sealant is shown in the following table. Similar results would be anticipated using
Silquest A-2120 silane.Polysulfide Sealants
When added to one- and two-part polysulfide sealants,Silquest A-1120 silane and A-2120 silane provide better adhesion to a variety of substrates, including glass, aluminum and steel. Silquest A-1120 silane and A-2120 silane are typically used at a loading of 0.5 to 1.0 percent by weight to the sealant. They disperse well and produce cohesive failure in the sealant rather than adhesive failure of the bond between
the sealant and the substrate.Furthermore, the use of Silquest A-1120 silane or A-2120 silane can eliminate the need for primers normally required to achieve adhesion to surfaces.
Plastisol Sealants
Adding Silquest A-1120 silane (0.5 to 1.5 weight percent) as a replacement for polyaminoamide adhesion promoters in plastisol sealants improves bonding to metal substrates.
Silquest A-1120 silane-modified plastisol systems have a very light color, and the cured compound is bubble-free.
Additive in Phenolic and Epoxy Molding Compounds
Silquest A-1120 silane, as an additive in phenolic and epoxy molding compounds, reduces the water absorption of molded composites. This, in turn, leads to improved wet electrical properties, particularly at low frequencies. High-temperature strength properties are also improved.
Properties
- Physical Form
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Flash Point | 138 (280) | °C (°F) | Pensky-Marten Closed Cup |