Knowde Enhanced TDS
Identification & Functionality
- Industrial Additives Functions
- Technologies
Features & Benefits
- Industrial Additives Features
Applications & Uses
- Markets
- Use Level
- 0.1 - 0.2%
- Applications
- Construction Materials
- Hydrophobic Impregnation
- Application Details
- Undiluted SILRES BS 66 serves as a water-repellent admixture for aerated concrete. Even when added in very small quantities, it dramatically reduces water absorption, and also optimizes the concrete's pore structure.When used as a water repellent for facades.
- SILRES® BS 66 is diluted with organic solvents. The resulting solutions are characterized by their good depth of penetration and excellent resistance to alkalis. The product may be applied to practically all absorbent mineral substrates, such as bricks, sand-lime brick, concrete, natural stone, mineral paints and plasters. When the main focus is a pronounced beading effect, it is preferable to use the all-round water-repellent agent SILRES® BS 290.
Processing
- Water-repellent admixture for aerated concrete SILRES® BS 66 develops full water-repellent properties when admixed as a masterbatch to the concrete slurry (approx. 20% content of SILRES® BS 66). The addition of just 0.1 - 0.2% SILRES® BS 66, expressed in terms of the solids content, is sufficient to dramatically reduce water absorption by the aerated concrete and to optimize its pore structure.
- For impregnating facades, SILRES® BS 66 is diluted with organic solvents in a ratio of 1:11 to 1:15 parts by weight. Preferred solvents are petroleum hydrocarbons, such as White Spirit 130/175, Shellsol T and isoparaffins. If the resultant solution is likely to come into contact with bitumen or with plastics that are attacked by solvents, we recommend that an alcohol is used instead as solvent, example ethanol or 2-propanol.
- The surface to be treated should look dry, with no damp patches. Carefully cover glass and other surfaces that must avoid contact with the solution, as it is almost impossible to remove the silicone resin once it has cured. The solution is best applied by flooding. To avoid flaws, apply two coats, wet on wet. Before impregnating a surface, try out the solution on a test area. This facilitates calculating how much impregnating agent will be required, and provides an indication of the product's efficacy.
Additional information
- Enhancer for hard surfaces SILRES® BS 66 can be used to enhance the appearance of natural stone surfaces. To achieve this effect, SILRES® BS 66 should be applied as supplied. One to two coats of the product are applied to achieve an enhanced appearance. More coats of the solution should be applied to achieve an enhanced appearance with gloss.
- SILRES® BS 66 can be applied with a soft, lint-free cloth, sponge, roller or paint brush. Excess material should be removed to prevent inconsistencies in the enhancement. The product should be fully cured within 24hrs.
Properties
- Physical Form
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Active Substance | 100 | % | — |
| Density (at 25°C) | 1.03 | g/cm³ | DIN 51757 |
| Dynamic Viscosity (at 25°C) | 12 - 17 | mPa·s | — |
| Flash Point | 50 | °C | ISO 2719 |
Packaging & Availability
- Regional Availability
Storage & Handling
- Storage Information
SILRES® BS 66 must be stored in the tightly closed original container under exclusion of moisture.