Name: Silane coupling agent KH-553
Chemical name: 3-Aminopropylsilanetriol; (3-Aminopropyl)silanetriol
CAS No.: 58160-99-9
Name: Silane coupling Agent KH-553

Chemical name: 3-Aminopropylsilanetriol; (3-Aminopropyl)silanetriol
CAS No.: 58160-99-9

KH-553 is an aqueous solution of an aminoalkyl siloxane. This alcohol-free siloxane improves significantly the adhesion and coupling between organic resins and inorganic surfaces.

Momentive Performance Materials

KH-553 is most often used in aqueous systems where the alcohol of hydrolysis causes instability of the formulation or where a high flash point additive is required. The product also reduces volatile organic content (VOC) and does not contain hazardous air polluting substances (HAPS).

These benefits are particularly useful to manufacturers seeking to reduce emissions from their water-borne products and processes.

Key Features and Typical Benefits

Amino Functionality: Reacts with many types of resins

Promotes bonding to many inorganic materials

Silanol Functionality: Adheres or couples with inorganic materials, such as siliceous fillers, glass and metal substrates

Contains No Alcohol of Hydrolysis: Easily diluted with water for safer and easier handling Reduced VOC and HAPS emissions without sacrificing performance

Typical Physical Properties

Physical Form: clear liquid

Color: straw

Special gravity at 25/25°C: 1.076

Viscosity, cSt: 4.0

Flash Point, Pensky-Martens Closed Cup, ASTM D93, °C (°F): 100(212)

Potential Applications

KH-553 silane is used as an additive for water-soluble or dispersible resin formulations or as a surface treatment. Resins that are reactive with KH-553 silane resins, include vinyl and acrylic latexes, epoxies and phenolics. Typical applications

where KH-553 is used are:

Waterborne Sealants

Waterborne Coatings

Waterborne Adhesives

Filler Treatment

Insulation Glass Fiber Binders

Waterbased Primers