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Silquest™ A-178

CASE Ingredients Features
Low VOC
Chemical Family
Silanes

Silquest™ A-178 silane is a coupling agent for glass fiber and particulate filler reinforced composites. It is a 100% active methacrylamido functional silane that may be used to promote adhesion between a wide range of resins and substrates and reinforcements. It is also useful as a monomer in the synthesis of organic polymers. It functions as a moisture- activated crosslinking agent.

Properties

Physical Form
Liquid

Other characteristics

Brand
Silquest
Features

Flavor Optimized, Free of Major Allergens, Improved Clarity, Improved Freeze/Thaw Stability, Improved Texture, Low VOC

Functions

Adhesion Promoter, Coupling Agent, Crosslinking Agent

Labeling Claims

Allergen-free, Clean Label, Gluten-free, Grain-free, Natural, Non-GMO; Allergen-free; Clean Label; Gluten-free; Grain-free; Natural; Non-GMO

Markets
  • Adhesives & Sealants
  • Automotive & Transportation
  • Food & Nutrition
Solubility

Silquest A-178 silane is soluble in methanol, ethanol, acetone, toluene, methyl Cellosolve® solvent (Dow Chemical Company) and water. It reacts with water and alcoholic solvents. In water, a concentration of one weight percent is stable for greater than 72 hours.

Technology
  • CASE Ingredients
  • Food Ingredients
Recommeded Usage

Silquest A-178 silane is recommended for evaluation in instances where inorganic surfaces such as glass fibers, particulate fillers or metals are combined with organic polymers, for example, unsaturated polyester, vinyl ester, acrylic, polybutylene and polyolefins. This silane is often applied to the inorganic surface from an aqueous solution. The treating solution can be quite simple, consisting of only silane, water and a small amount of acid to adjust the pH. These solutions are used commonly in finishing of heat-cleaned woven glass fabrics or treating particulate fillers. More complex solutions often are used when treating glass fibers used for reinforcing organic resins. These treating solutions may contain (in addition to Silquest A-178 silane) water-soluble organic polymers or emulsions of organic polymers as film formers, lubricants, anti-static agents, wetting agents, water, acids or buffers and other silane coupling agents.

Technical data

Table 1 of 1

2 rows
CharacteristicValueUnitMethod
Flash Point101 (214)°C (°F)—
Flash Point101.7 (215)°C (°F)Pensky-Marten Closed Cup ASTM D 93

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