WheBond RDP-H818 is a specialty redispersible polymer powder engineered for cementitious and gypsum-based dry-mix systems that require enhanced hydrophobicity and moisture resistance, in addition to improved mechanical performance and adhesion. It is formulated on a vinyl acetate–ethylene (VAc/E) copolymer platform with tailored surface properties that contribute to reduced capillary water uptake and improved resistance to moisture penetration when compared to standard RDP grades. This grade enables enhanced performance in applications exposed to wet environments, splash zones, or frequent moisture cycling while retaining stable processing behavior, good workability, and cohesion in the fresh mortar.
|
Parameter |
Specification |
|
Polymer type |
Redispersible Polymer Powder (VAc/E based) |
|
Constitution / Solid content |
Vinyl acetate–ethylene copolymer, 98–100 % solids |
|
Product form |
Free-flowing white powder |
|
Appearance |
White powder |
|
Bulk density |
400–600 kg/m³ |
|
Protective colloid |
Polyvinyl alcohol |
|
Ash content |
15 % ± 2 % |
|
Average particle size |
60–100 µm |
|
pH value |
6–9 |
|
Minimum film forming temperature (MFFT) |
~0 °C |
|
Glass transition temperature (Tg) |
~–8 °C |
|
Water dispersion |
Rapid re-dispersion with standard mixing |
|
Film forming |
Upon redispersion and drying |
|
Compatibility |
Cementitious and gypsum-based systems |
|
HS Code (indicative) |
3912.39 |
Enhances bond strength in cement-based mortars for more reliable application performance.
Increases flexural strength and deformability to support better mechanical performance.
Improves surface durability and resistance to wear in finished applications.
Supports easier processing while keeping leveling, thixotropy, and water retention largely unchanged.
Suitable for a wide range of cementitious and gypsum-based dry-mix 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.
