Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
SiSiB® WR0777
SiSiB® WR0777

potassium methyl siliconate

SiSiB® WR0777 Water Repellent is a water-dilutable solution of potassium methyl siliconate (Potassium siliconate) developed to impart water repellency to a wide variety of natural stone and masonry surfaces. The siliconate reacts with carbon dioxide in the air to form an insoluble repellent surface and reduce water absorption within 24 hours. It is similar to Wacker's Silres BS16, Dow's OFS-0777.

It is suitable for the silicone construction surface of natural stone, like sandstone, limestone, and red brick, gray brick, granite, ceramics etc.; it is not suitable for polished or glazed surfaces.

SiSiB® WR0777

Technical Data





Color and Appearance

Colorless Clear Liquid

Solid Contents


Active Substance


pH Value


Density 25/25°C



  • SiSiB® WR0777 silicone water repellent for brickwork is supplied concentration of 42 percent in water; SiSiB® WR0777 is usually diluted to a concentration of 3 percent solids or less before application. To prepare a 3 percent solution, mix one liter SiSiB® WR0777 as supplied, with 13 liters of water.

  • Application should be avoided on extremely windy days to avoid rapid evaporation of the water carrier.

Packing and Storage

  • SiSiB® WR0777 by SiSiB is packaged in net weight 1250Kg IBC tote.

  • In the unopened original container SiSiB® WR0777 has a shelf life of one year in a dry and cool place.

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SiSiB® WR0777