Products in Construction Adhesives: Silicones

Evonik Polymer VS 10000 consists of vinyl-terminated polydimethylsiloxanes available in different viscosity levels and molecular weights, with an impressively low content of volatile constituents. These polymers serve as fundamental components in silicone formulations that cure through a platinum-catalyzed addition reaction with silicone crosslinkers containing SiH groups. The minimal presence of volatile constituents and the crosslinking mechanism ensure that curing shrinkage remains low, and no volatile or corrosive substances are generated during the curing process.

AEROSIL® R 972 is hydrophobic fumed silica grade treated with DDS (Dichlordimethylsilane). The moderate hydrophobicity of these AEROSIL® products is suited for defoaming properties in the presence of appropriate hydrophobic liquids. They are recomended for improving the sedimentation stability of defoamer dispersions as well.

AEROSIL® 200 is a hydrophilic fumed silica with a specific surface area of 200 m²/g.

Shiraishi Kogyo Kaisha Hakuenka CC is our original Ultra-fine precipitated calcium carbonate coated with organic compounds. It was originally developed for reinforcing rubber materials in the early 20th century. Hakuenka CC has 50 nm uniformed ultra-fine particles as primary particle. These particles are surface treated with fatty acid in order to improve dispersion property at mixing stage with organic materials. Hakuenka CC is specially applied for construction application where Silicone & Polysulfide sealants are used. Hakuenka CC is commonly used as other application such as rubber, plastics and so forth.

The Micronized Products Mica 325# range of products are obtained as a co-product from the pegmatite ore at our mining operation situated in the Limpopo Province in South Africa. After separation the Mica is delaminated, screened, milled and classified to specific size specifications.