Water Repellent

Silicone Water Repellent Silway742


Silway742 is an emulsion of MH-Siloxane. It has highly flexible and mobile siloxane backbone enables the water repelling methyl groups to orient themselves toward the surface, creating a waterproof "umbrella" , and this "umbrella" unique is its ability to breathe.

Silway742  is used for waterproof treatment of all kinds of building materials inculduing gypsum,insulation materials.etc

Technical Index




Milky, white

Active Content

40 %


0.98 ± 0.05



Stability (3000r/min)

15min Non-stratified


• High spreading and wetting capabilities the ability to thoroughly cover a surface or penetrate a porous substrate

• Permeability to gas and water vapor

• Permeability to gas and water vapor

• Durability and mechanical and chemical adhesion


• Waterproof coatings for roofs, masonry, clay product, timber, and other construction applications

• Waterproof elastomeric coatings for industrial and fashion textiles

• Additives to improve the wash-off resistance of beauty and personal care products


•In order to achieve optimal application results, surface should be clean, dry and sound. Sweep or rinse to clear dust, dirt, and residues. Repair all cracks, splits and holes

• The recommended usage level is 2-5% calculated and based on total formulation.

• It is strongly recommended carry out preliminary tests to determine the optimum quantity for particular application.

• Keep container tightly closed and the diluted liquid do not fall back into the original one.

Packing :1000L IBC Drums or 200L Drums


• Storing in a cool, dry and ventilated place, avoid strong sunlight and contacting with acid, alkali and oxidizing agents.

•The temperature of the warehouse should not be lower than 5℃.

•Avoid the eyes or ingested.


Shelf Life :12 months





The Way of Silicone Innovation

Hangzhou Silway New Material Technology Co.,Ltd. Founded in 2014, is a young but fast-growing Silicone Water Repellent Silway742 manufacturer specialized in the research, development, production and marketing of Silicone Water Repellent Silway742.

Silway focused on the modified siloxane and formulation technology, product line covers from agricultural silicone adjuvant, silicone water repellent, cosmetic silicones, sealant & additive, modified siloxane for die-casting.etc.

  • R&D

    Founders have over 20 years’ technical experience in silicone industry

  • Quality

    ISO9001 Certificated

  • Service

    Sales for international market all have at least 5 years experience, easy to communicate and professinal in silicone industry.

  • OEM

    Offer OEM service and customized products.

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Silicone Water Repellent Silway742 Industry Knowledge Extension