Silicone Water Repellent for Gypsum Plaster Board Hydrogen Silicone Oil SiFS-94
SiFS-94 is a trimethylsiloxy terminated polymethylhydrogensiloxane. The molecule has a relatively active Si-H bond, it can react with reactive groups such as a double bond and hydroxyl group by catalyst, and the self-crosslinking reaction can also occur. As an additive to gypsum, it can be added to the interior of gypsum to achieve a good waterproof effect, and reducing the water absorption of gypsum. SiFS-94 can also be used as a raw material for the production of other modified silicone oils and other special applications.
Product Data
| Item |
Value |
| Appearance |
Colorless and transparent liquid |
| Active content,% |
100 |
| Viscosity, 25ºC,mm2/s |
15-25 |
| Hydrogen Content, wt.% |
>1.58 |
| Volatile,120°C, 2h,% |
<2 |
| pH |
6.0~7.0 |
| Flash point,open cup |
160ºC |
Notes: these data are for reference only and should not be used as preparation specification
Application
• Waterproofs in the gypsum production process
• Hydrophobic surface treatment for dry-sprayed substance, e.g. powder extinguisher.
Package
200L Drums or 1000L IBC totes.
Net weight 200KG/drum and 1000KG per IBC.
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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