WheChemical GR20 is a highly efficient gypsum retarder developed for precise control of the setting time in gypsum and gypsum-based dry-mix systems. It allows formulators to extend the open time and improve workability without negatively affecting final strength or surface quality. GR20 is designed for standard gypsum applications where reliable and reproducible retardation is required under varying production and climatic conditions.
|
Parameter |
Specification |
|
Chemical type |
Organic gypsum retarder |
|
Product form |
Free-flowing powder |
|
Appearance |
White to off-white powder |
|
Bulk density |
400 – 700 g/l |
|
Moisture content |
≤ 5 % |
|
pH value (5 % solution) |
4.0 – 6.0 |
|
Solubility |
Partially soluble in water |
|
Recommended dosage |
0.01 – 0.10 % by weight of gypsum |
|
Compatibility |
Gypsum and gypsum-based dry-mix systems |
Provides precise and predictable retardation in gypsum-based formulations.
Improves working time and supports easier application and finishing.
Supports uniform setting behavior for more reliable processing performance.
Helps maintain consistent production and application under varying conditions.
Extends setting time without negatively affecting final strength or surface quality.
Works effectively with common additives used in gypsum-based 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.
