High Efficient General Purpose Water Repellent for Impregnating and Priming Mineral and Alkaline Substrates Sifs-290

• CAS No.: 70131-67-8
• Environmental Protection: Yes
• Function: Waterproof
• Appearance: Liquid
• Color: Colorless to Light Yellow
• Active Content: 100%
• Model NO.: SiFS-290
• Active Component: Silane, Siloxane, Fumed Silica
• Density: 0.92 g/cm3
• Application: Porous, Mineral Construction Materials
• Transport Package: IBC or Drums
• Specification: 100% active content
• Trademark: SiFS-290
• Origin: China
• HS Code: 391000000
• Production Capacity: 1000mt

Product Description

High-efficient, general-purpose water repellents for impregnating and priming mineral and alkaline substrates SiFS-290

SiFS-290 is a solvent-free silane and siloxane concentration blends. It is dilutable with organic solvent. It can penetrate inside the building substrate to form an efficient and lasting water-proofing layer protection. Diluted solutions of SiFS-290 in organic solvent serves as a high-efficient, general-purpose water repellents for impregnating and priming mineral and alkaline substrates.

Features
• Good penetration with depth 3-10mm
• Extremely effective with most natural stone
• good alkali resistance

SiFS-290 reacts with the atmospheric moisture or pore water in the substrate, thereby generating the active
ingredient while releasing alcohol. It can penetrate inside the building substrate to form an efficient and lasting water-proofing layer protection, which nevertheless retains a very high degree of water vapour permeability since neither pores nor capillaries are clogged.

Product data

Item	Value
Appearance	Hazy and colorless liquid
Active Content,%	100
Density, g/cm^3	0.92±0.05

Notes: these data are for reference only and should not be used as preparation specifications.

Application

SiFS-290 is suitable for imparting hydrophobicity to absorbent, porous, mineral construction materials, e. g.: brickwork, all kinds of concrete , aerated concrete, sand-lime brickwork, cement fiber boards, mineral plasters,mineral-based natural and artificial stone, mineral paints. It is also suitable as primer for exterior paints.

How to use
• Clean and dry the substrate.
• Dilute SiFS-290 with ratio around 1:12, solvent could be alcohol, hydrocarbons or petroleum.
• Spray or brush, recommended dosage of 5L/m², adjust dosage according to different substrate. The trial test is recommended for optimum dosage.

Package
25L plastic pails, 200L Drums or 1000L IBC totes.
Net weight 20KG/pail,180KG/drum and 900KG/IBC.






 

 

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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