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Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
SiSiB® WR1689
SiSiB® WR1689

SiSiB® WR1689 is a solvent-free silane/siloxane water repellent for penetrating treatments on porous building materials like concrete and masonry. It bonds chemically with substrates upon application, creating a durable hydrophobic barrier without altering surface appearance.

SiSiB® WR1689

Features & Benefits


  • Solvent-free, low-VOC compliant base concentrate


  • Excellent water repellency with contact angles up to 150°


  • Fast surface beading effect after drying


  • Strong substrate penetration due to small molecular structure


  • Chemically bonds with both neutral and alkaline surfaces


  • UV and weather resistant


  • Allows water vapor permeability while blocking liquid water


  • Significantly reduces efflorescence, cracking, and spalling


  • Suitable for high dilution (5-15×), cost-effective in use


Physical Properties


Color and Appearance

Clear or lightly yellow liquid

Active Content (%)

100

Density (20°C, g/cm3)

0.90-0.95

These values are typical and are not intended for use as specifications.

Application


SiSiB® WR1689 is ideal for:


  • Concrete roads, bridges, parking decks


  • Masonry, brick, sandstone, and limestone


  • Cement fiberboard, calcium silicate board


  • Other porous mineral substrates exposed to weather


Usage Guidelines


Dilution


Recommended dilution ratio: 1 part WR1689 to 10 parts solvent Suitable solvents include:


  • D40, D60, 120# solvent oil


  • Isopar H


  • C6-C10 alkanes


  • Aromatic or alcohol solvents as appropriate


  • Always use dry solvents to avoid premature curing in container


Application


  • Application methods: brushing, spraying, dipping


  • Ensure surface is clean, dry (or slightly damp), and free of dust or oil


  • Apply two uniform coats for optimal penetration


  • Do not allow treated surface to be exposed to rain before curing


Curing


  • Allow treated surfaces to dry at ambient temperature


  • Accelerated curing can be achieved with heat if needed

Packing and Storage


SiSiB® WR1689 is available in 200Kg drum or 1000Kg IBC.


SiSiB® WR1689 should be stored under dry conditions, away from direct sunlight. In the unopened original container, it has a shelf life of at least 12 months. Longer storage times may cause lumping which normally does not affect the performance of the product.


Storage beyond the date does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

Documents

DownloadSiSiB® WR1689 Technical Data Sheet
DownloadSiSiB® WR1689 Safety Data Sheet
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SiSiB® WR1689