SiFS-16 is an aqueous solution of potassium methyl siliconate for the impregnation of mineral construction materials in diluted form to make them waterproof. SiFS-16 reacts with the atmospheric carbon dioxide (CO2) to form an active water-resistant substance which firmly combine with the surface of the masonry within 24 hours. SiFS-16 is an ideal and economical water repellent for various construction materials, especially for porous substrate. As with all siliconates, however, SiFS-16 can cause a white deposit on the surface of colored construction materials.
Properties
• React with atmospheric CO2
• Colorless, preserve the natural appearance of the substrate
• Forms potassium carbonate as side products
Product Data
| Item |
Value |
| Appearance |
Colorless and transparent liquid |
| Solid content, wt.% |
Approx 52 |
| Active content,wt.% |
Approx 32 |
| Solvent |
Water |
| pH, 25°C |
Around 13 |
| Density, g/cm3 |
Around 1.35 |
Notes: these data are for reference only and should not be used as preparation specifications.
Application
• Imparts water repellency to:
- porous building materials like bricks, roof tiles.
- aerated concrete
- gypsum and gypsum-based fiber boards
- light fillers, such as perlite, vermiculites and aerated concrete granules
• Densifier for concrete
• Additives for mortars, aqueous construction coatings,etc
• Used as damp roofing agents
How to use
For surface treatment & impregnation, dilute SiFS-16 with water 21-25 times before use, suitable methods like dipping is necessary in order to achieve an adequate, uniform coating. The product is not recommended for treating exterior walls, since the unnecessarily uneven application will give rise to white spots.
Packages & Loading pictures
ABOUT SILICONE WATER REPELLENT
Silicone waterproofing agent: A series of chemicals/mixtures which containing Si-O bonds and alkyl groups (like methyl, octyl group) in the molecular structure.
The machanism of silicone water repellent:
The SiOH (silicon hydroxy) group react with the substrate to form a thin resin film:
• The silane reacts with water (Hydrolysis reaction) to form SiOH (silicon hydroxy) group and it is can be bond to the OH (hydroxy) of the substrate.
• The silanes occurs condensation reaction to form a Si-O-Si group. The alkyl group (R group) of surface is effectively hydrophobic.
• Most of the molecules of siloxanes and silanes are small with strong permeability. It is has a breathable waterproof effect after curing , and than
prevents liquid water that may contain dissolved chloride or acid from penetrating into the substrate
APPLICATIONS OF SILICONE WATER REPELLENT
ABOUT SUNOIT
Jiangshan Sunoit Performance Material Science Co.,Ltd, branded as SUNOIT™, is a young and dynamic corporation which supplies and produces specialty chemicals and provides technical solutions since 2018. The products from Sunoit conclude siliconate, silicone fluid, modified silicone, silicone emulsion, silicone resins and fluorochemicals. Today, Sunoit is developing into a technology-based company integrating manufacturing, trading and R&D. We work with more than 200 clients worldwide in different markets including construction, textile & fabrics, personal care & cosmetics, agricultural chemicals, polyurethane industry, lubricants and additives, etc. The materials from Sunoit are extensively tested with the highest standards to meet with diverse demands. Sunoit is your reliable global partner providing tailor-made specialty chemicals and services for a better future.
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