Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
SiSiB® WR0778
SiSiB® WR0778

potassium methyl siliconate

SiSiB® WR0778 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.

SiSiB® WR0778 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. It is similar to Wacker's Silres BS16, Dow's OFS-0777.

SiSiB® WR0778

Technical Data





Color and Appearance

Colorless Clear Liquid

Solid Contents


Active Substance


Density 25/25°C



  • SiSiB® WR0778 silicone based water repellent coating is supplied concentration of 52 percent in water; SiSiB® WR0778 is usually diluted to a concentration of 3 percent solids or less before application. To prepare a 3 percent solution, mix one liter SiSiB® WR0778 as supplied, with 15 liters of water.

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

Packing and Storage

  • SiSiB® WR0778 by SiSiB is packaged in net weight 1250Kg IBC tote.

  • In the unopened original container SiSiB® WR0778 has a shelf life of one year in a dry and cool place.

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SiSiB® WR0778