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

Potassium Methyl Siliconate-1

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.

This siliconate sealer for concrete is suitable for the 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



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

  • SiSiB® WR0777 for silane coating concrete 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.

Packing and Storage

  • SiSiB® WR0777 Potassium Methyl Siliconate HMDS is packaged in net weight 1250Kg IBC tote.

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

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SiSiB® WR0777