WheChemical Water Repellents – WR Line is a high-performance water repellent additive designed for cementitious and mineral-based dry-mix formulations requiring durable hydrophobic protection. The product significantly reduces water absorption in hardened mortars and plasters while maintaining good vapor permeability. WR10 improves the long-term durability of building materials by protecting against moisture ingress, efflorescence, and weathering. WR10 is particularly suitable for exterior mortars, renders, and façade systems where reliable water repellency and long-term stability under outdoor conditions are required.
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Parameter |
Specification |
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Chemical type |
Silane / Siloxane based hydrophobic additive |
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Product form |
Powder |
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Appearance |
White free-flowing powder |
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Bulk density |
approx. 300 – 500 g/l |
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pH value |
approx. 7 – 9 |
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Moisture content |
≤ 5 % |
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Solubility |
Dispersible in water |
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Recommended dosage |
0.1 – 0.5 % by weight of dry mix |
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Compatibility |
Cementitious and mineral binder systems |
Effectively lowers capillary water uptake in hardened mortars and plasters.
Provides durable water repellency for exterior and moisture-exposed applications.
Helps preserve the breathability of mineral systems while improving water resistance.
Enhances resistance to moisture ingress, efflorescence, and weathering.
Works effectively with cementitious and mineral binder systems.
Do you have any questions or comments about our products? Reach out to our sales team, always ready to help you.
wheChemical is an international supplier of cellulose derivatives and construction chemical additives, serving the global construction materials industry with reliable and performance-oriented solutions.
Our product portfolio includes WHECELL cellulose derivatives, WHEBOND redispersible polymer powders, and WHECHEM specialty additives, designed to enhance the performance of dry-mix mortars, tile adhesives, exterior insulation systems, and self-leveling compounds.
Working in close cooperation with established international manufacturing partners, wheChemical provides access to high-quality materials produced according to modern industrial standards. Our focus is to ensure reliable product availability, consistent quality, and formulation-oriented technical support for customers in the construction chemicals sector.
Whether you are formulating high-performance tile adhesives, developing self-leveling underlayments, or optimizing EIFS systems, wheChemical provides the chemical components needed to achieve reliable workability, water retention, adhesion strength, and long-term durability.
Contact our technical sales team to discuss your specific formulation requirements and request product samples.
