WHECHEM GR30
Gypsum Retarder - Amino Acid

AA - GR30

WheChemical GR30 is a high-performance gypsum retarder designed for systems requiring stronger and longer-lasting retardation effects. It is especially suitable for advanced gypsum formulations, high-reactivity gypsums, and applications where extended open time and processing flexibility are critical. GR30 ensures excellent control of hydration kinetics while maintaining mechanical performance and surface quality.

40k–200k Viscosity (mPa·s)
≤ 5% Moisture
99% Purity
ISO 9001 Certification

WHECHEM GR30 - Performance Profile

Retarding Effect
Open Time
Set Control
Gypsum Compatibility
Dosage Efficiency
Mix Stability
Reproducibility
Robustness

Technical Specifications

Parameter

Specification

Chemical type

High-performance organic gypsum retarder

Product form

Free-flowing powder

Appearance

White to light beige powder

Bulk density

400 – 700 g/l

Moisture content

≤ 5 %

pH value (5 % solution)

3.5 – 5.5

Solubility

Partially soluble in water

Recommended dosage

0.02 – 0.15 % by weight of gypsum

Compatibility

All gypsum-based dry-mix systems

Application Areas

Machine-applied gypsum plasters
Large-area gypsum coatings
High-performance joint fillers
Gypsum self-leveling underlayments
Industrial gypsum elements
Special gypsum formulations requiring long processing time

Strong Setting Retardation

Provides powerful and long-lasting control of gypsum setting behavior.

Extended Open Time

Supports longer workability windows for complex and large-scale applications.

Reliable Hydration Control

Ensures stable control of hydration kinetics in demanding gypsum systems.

Stable Performance

Maintains consistent retardation behavior under varying production and climate conditions.

High Formulation Reliability

Supports dependable processing and performance in advanced gypsum formulations.

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Whechemical: High-Performance Chemical Solutions for the Construction Industry

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.

Why Choose Whechemical Products?

  • Access to internationally manufactured specialty chemicals
  • Consistent product quality aligned with modern industry standards
  • Technical support for formulation development and optimization
  • Comprehensive product documentation including TDS and SDS
  • Reliable supply chains and competitive sourcing structures

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.