Protectasilane 100w is a water-based silicone water repellent containing 100% active silane/siloxane concentrate. Protectasilane 100w is neutral and contains no salts and no solvents. Dilute the product with 1 part to up to 700 parts water before application. Use it as a replacement for sodium or potassium siliconate solutions when treating clay bricks, clay tiles, or other masonry materials by factory dipping. You may also apply it by spraying, either in the production line or directly on site for masonry substrates.
Use Protectasilane 100w as a water‑repellent sealer to protect permeable masonry substrates, including fired clay bricks and other masonry, against water penetration and efflorescence. Apply by dipping or spraying.
Dilute Protectasilane 100w with 1 part product to up to 700 parts water to form a working solution before use. Use the diluted solution as soon as possible. Depending on the dilution ratio and conditions, the shelf life ranges from a few hours to a few days.
Dilution ratio:
Following dilution ratio is typically recommended for water repellent treatment for clay bricks or clay tiles replacing siliconate dipping treatment:
| Application | Dilution ratio by weight |
| Dipping | 1:200 or more |
| Spraying | 1:50 or more |
Please note that, for low performance treatment, above dilution ratio may be further extended. The product can be diluted to a maximum dilution ratio up to 1 part Protectasilane 100w to 700 parts water. A test should be conducted for the best dilution ratio required.
Dilution method:
Use deionised or distilled water with neutral pH for dilution. Conduct the procedure below 25 °C in a clean, dry, well‑ventilated environment away from fire or ignition sources. Carry out dilution in a clean container equipped with a mechanical or manual stirrer.
Add water first, then slowly introduce Protectasilane 100w while stirring continuously. Continue stirring until the solution becomes clear. Mixing time varies with temperature and water quality, typically 5–10 minutes or longer. Stop stirring only when no oily Protectasilane 100w droplets remain on the surface.
Check the final pH of the solution is approximately at pH5 to 6. The solution is now ready to use.
Note that the shelf life of the diluted solution is limited. Use the solution as soon as possible. Shelf life depends on use conditions; higher dilution ratios may extend it. The solution is highly sensitive to contamination, which can significantly reduce shelf life. Temperature also affects stability; higher temperatures shorten shelf life. Conduct practical trials before formal application.
As masonry substrates vary significantly, carry out a test on the masonry substrate before application to confirm the product’s suitability.
Protectasilane 100w is a flammable liquid. Refer to the safety data sheet for handling instructions and follow good industrial hygiene practices. Avoid vapour inhalation and skin or eye contact by wearing appropriate protective equipment. Use an air‑purifying respirator if high vapour concentrations are likely. Wash hands after handling. Store the product in closed containers in a cool, dry place away from fire or ignition sources. Shelf life is 12 months in the sealed original container when stored below 25 °C. Use the product as soon as possible after opening
Use under sufficient ventilation away from any fire or ignition sources.
Keep out of reach of children.
Protectasilane 100w is available in 20 or 200 litre metal drums.