| Technical Data | |||
|---|---|---|---|
| Appearance: | yellowish or white powder | ||
| Moisture: | Max 5% | ||
| PH Value(20℃): | 6.0-9.0 | ||
| Recommended Dosage: | around 0.10% | ||
Celotech’s Gypsum Retarder is a highly efficient setting time regulator specifically formulated for gypsum putty and gypsum-based decorative coatings, delivering:
✔ Precise Setting Control – Adjusts working time from 20 minutes to 4 hours for optimal application
✔ Improved Workability – Maintains smooth consistency throughout the application window
✔ Enhanced Finish Quality – Reduces surface defects and cracking during drying
✔ Compatibility – Works seamlessly with various gypsum binders and additive systems

Gypstar® G300 is a highly efficient gypsum retarder, specifically formulated to control and extend the setting time of gypsum-based materials. Designed with advanced formulation technology, Gypstar® G300 ensures consistent performance, excellent workability, and optimized strength development in various gypsum applications.
Gypstar® G300 is recommended for use in:
Gypsum plasters
Gypsum self-leveling underlayments
Gypsum-based mortars and fillers
Gypsum wallboards and prefabricated elements
By incorporating Gypstar® G300 into your gypsum formulations, you can achieve greater control over setting times, enhance application flexibility, and improve the overall quality and durability of your gypsum products.
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