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Building with gypsum and fiber cement boards is fast and flexible. To additionally ensure a high quality standard, VINNAPAS® polymer binders are used to enhance the characteristics of mortars, plasters and joint fillers in these applications. SILRES® BS silicone resins are ideal for hydrophobization.
Thanks to its favorable carbon footprint, gypsum contributes significantly to sustainable construction. However, gypsum is water-soluble. VINNAPAS® dispersible polymer powders and SILRES® BS products help to compensate for this disadvantage.
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Cement fiber boards, backer boards and fire-resistant boards are treated with SILRES® BS products to reduce the capillary water absorption by post- or bulk-impregnation.
Benefits
- Increased freeze/thaw resistance
- Better dimensional stability in wet areas
- Prevention of premature drying of plasters, mortars and tile adhesives through optimal water retention
- Reduced water absorption of lightweight fillers
- Prevention of additional water ingress at cut edges by integral hydrophobization
- No paint peeling (siloxane used as primer)
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Products
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Technical data
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Suitability
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Viscosity, kinematic | Appearance |
Boards & Panels
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Fiber Cement Boards
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SILRES BS 17040 US | - - | - - | - | - | |
SILRES BS 17040 US | - - | - - | - | - | |
SILRES BS 1705 BR | - - | - - | - | - | |
SILRES® BS 1603 CN | 130 - 300 mm²/s[1] 130 - 300 mm²/s[1] | clear, colorless to slightly yellow[2] clear, colorless to slightly yellow[2] | - | - | |
SILRES® BS 1701 | - - | - - | - | - | |
SILRES® BS 1703 SQ | 130 - 300 mm²/s[1] 130 - 300 mm²/s[1] | clear, colorless to slightly yellow[2] clear, colorless to slightly yellow[2] | |||
SILRES® BS 1705 | - - | - - | - | - | |
SILRES® BS 3003 | - - | - - | - | - |
[1] Viscosity, kinematic | DIN 51562-1 , [2] Appearance and color, [] Suited, [] Well suited, [] Ideally suited
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To improve the poor moisture resistance of gypsum, SILRES® BS polymethylhydrosiloxane emulsions can be used for water-repellent treatment. Thanks to the chemical interaction between the gypsum crystals and the silicone, these materials provide far more efficient protection than organic water repellents.
Enhancing wallboard:
Used as admixture with significant benefits over wax additives (for all wallboard plants)
Enhancing fiberboards:
Surface treatment with excellent hydrophobic properties
Product Recommendations
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Products
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Technical data
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Suitability
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Refractive index | Appearance |
Boards & Panels
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Gypsum Wallboards and Gypsum Fiberboards
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SILRES BS 2410 A | - - | - - | |||
SILRES® BS 16 | - - | - - | - | - | |
SILRES® BS 94 | approx. 1.396 approx. 1.396 | colorless liquid colorless liquid | - | - |
[] Suited, [] Well suited, [] Ideally suited
VINNAPAS® dispersible polymer powders are used as binders in gypsum plasters and fillers to improve manual and machine processing, reduce the water uptake and increase the flexibility, making for smooth, crack-free surfaces. Grades without plasticizers support the formulation of low-emission end products.
Benefits
- Outstanding tensile adhesive strength on gypsum plasterboard and jointing tapes
- Excellent workability
- Particularly smooth, level surface devoid of cracks or crevices
- Reduced water uptake
- Plasticizer-free products available
Reduction in the Water Absorption of a Gypsum Joint Filler
Between x and y weight percent SILRES® BS POWDER G is added to a commercially available gypsum joint filler (left-hand bar). The test specimens obtained were then immersed in water for two hours. The chart shows how much water by weight percent was absorbed by the test specimens.
SILRES® BS POWDER G is an additive for waterproofing gypsum-based dry-mix mortars. It is an active substance in solid form and low in volatile organic compounds. SILRES® BS POWDER G can reduce the water absorption of gypsum powder products by more than 90% applying a dosage rate of 0.5 weight percent.
Benefits
- Good water-repellency
- Easy handling and storage
Product Recommendations
Sorry, no results are available for your filter criteria and selected country. Please contact one of our sales offices.
Products
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Technical data
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Product properties
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Suitability
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Minimum film forming temperature | Specific Features |
Wall and Joint Fillers
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SILRES® POWDER G | - - | - | ||
VINNAPAS® 4023 N (GER) | 1 °C[1] 33.8 °F[1] | - | ||
VINNAPAS® 4115 N (GER) | 4 °C[1] 39.2 °F[1] | - | - | |
VINNAPAS® 4121 N | 1 °C[1] 33.8 °F[1] | - | - | |
VINNAPAS® 5005 N | 11 °C[1] 51.8 °F[1] | - | - | |
VINNAPAS® 5010 N (CTY) | 4 °C[1] 39.2 °F[1] | - | ||
VINNAPAS® 5010 N (GER) | 4 °C[1] 39.2 °F[1] | - | ||
VINNAPAS® 5012 T | 4 °C[1] 39.2 °F[1] | - | ||
VINNAPAS® 5028 E (CTY) | 4 °C[1] 39.2 °F[1] | - | ||
VINNAPAS® 7031 H | 0 °C[1] 32.0 °F[1] | Hydrophobic | - |
[1] Minimum film forming temperature | DIN ISO 2115, [] Suited, [] Well suited, [] Ideally suited