Knowde Enhanced TDS
Identification & Functionality
- Industrial Additives Functions
- Technologies
Features & Benefits
- Labeling Claims
- Industrial Additives Features
Applications & Uses
- Markets
- Applications
- Industrial Additives End Use
- Applications
- Fiber Cement Boards
- Construction Materials
- Hydrophobic Impregnation
- Boards & Panels
- Application Details
- SILRES® BS 1702 is recommended as a repellent impregnating agent and primer for normal and reinforced fiber cement elements. Dilution SILRES® BS 1702 may be used in undiluted form or diluted with organic solvents.
- The concentration to be applied depends on the quality or porosity of the fiber cement substrate and the desired depth of penetration of the water-repellent agent. Since the penetration depth of the active silane/siloxane component depends directly on the concentration of active ingredient in the water-repellent agent, higher concentrations should be used for high-quality fiber cement with low porosity.
- For very high quality concretes we recommend applying SILRES® BS 1702 either in undiluted form or in a concentration of no less than 1:4 (one part by weight of SILRES® BS 1702 to four parts of solvent). For fiber cement of lower quality, it may be diluted down to 1:9 if necessary. Suitable solvents include aliphatic and aromatic hydrocarbons, particularly white spirits, and anhydrous alcohols, such as ethanol or 2-propanol.
Properties
- Appearance
- Opaque colorless to yellowish
- Typical Properties
- Properties
- Good depth of penetration
- Greatly reduces water absorption
- Low volatility, hence little evaporation loss during application After application to the fiber cement SILRES® BS 1702 reacts with atmospheric moisture or pore water, thereby generating the active ingredient while liberating alcohol. The active ingredient greatly lowers the water absorbency of the fiber cement,w hich nevertheless retains a very high degree of water vapor permeability since neither pores nor capillaries are clogged.
| Value | Units | Test Method / Conditions | |
| Density (at 25°C) | 0.92 | g/cm³ | DIN 51797 |
| Dynamic Viscosity (at 25°C) | 2.8 | mPa·s | DIN 51562 |
| Flash Point | 40 | °C | — |
| Ignition Temperature | 255 | °C | DIN 51794 |
| Silane Content (Siloxane Content) | approx. 100.0 | % | — |
Packaging & Availability
- Country Availability
- Regional Availability
Storage & Handling
- Storage Information
SILRES® BS 1702 must be stored in the tightly closed original container under exclusion of moisture.