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Kh 831 - China

price: contact company for price

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Chemical Name: n-Octyl trimethoxy silane

Specification: surface modifier to generate hydrophobicity / water repellent products

CAS No. 3069-40-7

Molecular Weight 234.41

Boiling Point 75

Flash Point 103

Density [25] 0.91

Refractive Index [25] 1.417[25]

Color and Appearance Colorless transparent liquid

Purity 98%


N-Octyltrimethoxysilan e (CAS No. 3069-40-7), silane coupling agent KH-831, is an important additive for many applications. Examples are:

KH-831 silane can be used as a surface modifier to generate hydrophobicity (e. G. On concrete, glass, inorganic pigments, or mineral fillers). The medium-chain alkyl functionality results in unique compound properties when KH-831 treated minerals or pigments are incorporated into polymers, e. G. Polyethylene or polypropylene. Loading levels of 0.5 to 1.5% wt. KH-831 based on the weight of fillers or pigments are typically recommended.

KH-831 silane can also be used to improve the compatibility of mineral fillers or pigments in polyolefins or to ease their dispersion in nonpolar matrices.

KH-831 silane is a small molecule to allow for deep penetration into the cementitious surface. This material reacts with moisture in the air and in the substrate in the presence of an alkaline or acidic environment to produce hydroxy groups. These hydroxy groups will bond with the substrate and itself to produce a hydrophobic treatment that inhibits water absorption into the substrate. An alkaline environment, such as new concrete, will catalyze the reaction and speed the formation of the hydrophobic surface.

Packing & storage:

1. 200L PVF steel barrel or 1000L IBC drum

2. Store in a cool, dry place. Avoid light.

Kh 831

Please see our contact information below

Company Contact:

  • Phone: 86-25-83315620

  • Address: 7-103 Ertiaoxiang, Gulou, Nanjing, 210008, China, Nanjing, China

  • Email: Email

Published date: September 7, 2012 -

  • Business Description: Established in 2007, Nanjing Lanya Chemical Co., Ltd. is a professional manufacturer engaged in the research, development, production, sale and service of food additives, paper chemicals, water treatment chemicals & other fine chemicals. We are located in Nanjing and have convenient transportation access.

    Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction. In recent years, our company has introduced a series of advanced equipment, including spraying, drying and other related equipment. In addition, we have attained ISO9001, ISO14001 & HACCP certificates.

    Selling well in all cities and provinces around China, our products are also exported to clients in such countries and regions as the United States, Russia, Japan, Germany & India. We also welcome OEM orders.

    Whether selecting a current product from our catalog or seeking engineering assistance for your application, you can talk to our customer service center about your sourcing requirements.

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