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Silway 732 water repellent is a non-toxic and odorless methyl hydrogen silicone fluid. Due to the presence of relatively active Si-H bonds in the molecule, it can react with chemicals containing active groups (such as double bonds or hydroxyl groups) under the action of catalysts.
This fluid converts into a durable film, creating a resilient waterproof coating on various substrates even at low temperatures. It provides outstanding protection against moisture, mildew, and rust, while maintaining high permeability to water vapor, allowing treated materials to "breathe".
Silway 732 is widely used as a surface treatment to impart water repellency and reduce water absorption in:
| Property | Result |
|---|---|
| Appearance | Colorless Transparent Liquid |
| Viscosity (cSt, 25ºC) | 20 |
| Hydrogen Content (%) | 1.58 |
| pH | 7 |
| Volatile Content (150 ºC, 3h, %) | <2 |
| Flash Point (Closed Cup, ºC) | >150 |
Application: Usually applied from a dilute solution using hydrocarbon solvents, acetone, or methyl ethyl ketone. Curing can be accelerated using catalysts and higher temperatures.
Packing: Available in 200L drums or IBC tanks.
Storage: Keep in closed containers. Avoid contact with children. No fire allowed on construction sites.
Shelf Life: 12 months.
