Product Advantages
- Excellent retarding effect for gypsum board production
- Extremely low dosage and high efficiency
- Stable setting time control for gypsum systems
- Excellent fluidity retention during processing
- No adverse effect on gypsum strength development
- Good compatibility with other gypsum admixtures
- Adjustable setting time by changing dosage
- Liquid form for convenient use and dispersion
- Suitable for industrial gypsum board manufacturing
Technical Specification
| Item | Specification |
|---|---|
| Appearance | Dark brown |
| Density (g/cm³) | 1.1-1.3 |
| pH value(10% in water) | 5.0-7.0 |
| Active content (%) | 50±1 |
These figures are only intended as a guide and should not be used in preparing specifications.
Downloads
Product Applications
GRATARD™ BR-03L Liquid Gypsum Retarder is specifically designed for gypsum board production, helping extend setting time while maintaining excellent fluidity and stable strength performance.
Gypsum board

Recommended Dosage
The product should be added at a minimal dosage of 0.015% to 0.3% by total weight of components. The
actual dosage should be determined through suitable tests prior to production and application.
Need custom formulations or comparative testing?
Contact BOTAI’s technical team for customized formulation support and performance consultation.
Contact Botai R&D Team
Packaging & Delivery

- Standard Packaging: 200kg/DRUM, 1100kg/IBC.
- Custom Packaging: Available upon request
- Minimum Order Quantity (MOQ): 3 metric tons.
- Lead Time: 7-15 days after order confirmation
- Trade Terms: FOB / CIF / DDP under Incoterms® 2020
Storage and Shelf life
- Store in a a sealed container in a cool, ventilated, and dry indoor environment.
- Keep away from heat, fire, and direct sunlight.
- Reseal packaging after use to prevent moisture absorption.
- Shelf Life: 12 months from date of delivery under proper storage conditions.
Safety & Compliance
GRATARD™ BR-03L is non-hazardous under EU chemical safety regulations.
It poses no risk to health or the environment when handled according to standard industrial practices.
Detailed safety information is available in the MSDS.
Email:
[email protected]About Henan Botai Chemical Building Materials Co., Ltd.




Established in 2004, Botai Chemical is a certified manufacturer specializing in Redispersible Polymer Powder, Cellulose Ethers (HPMC/HEMC/HEC), Calcium Formate, and Superplasticizers (SMF/PCE). Our products are widely used in dry-mix mortars, paints, oil drilling, feed, and detergent applications.
As a member of China’s Building Materials and Ceramic Industry Associations, Botai is actively involved in R&D and innovation for tile adhesive and repair materials. We operate two advanced R&D centers and hold over 25 patents and 20 registered trademarks.
With ISO 9001, EU REACH, HALAL, and FAMI-QS certifications, Botai ensures consistent quality and sustainable manufacturing. Our annual capacity exceeds 100,000 tons across VINNATE®, VAMCELL®, BOMCELL®, THYLOCELL®, FORCA®, and DEMACSA® product lines.
Our Certificate

Customer Case

Why Choose Us?
Factory established in 2004, backed by 20+ years of manufacturing expertise and over 60,000 m² of modern production facilities
Trusted by customers in 100+ countries and regions, with stable export supply and responsive service
One of China’s leading manufacturers of construction chemical additives, with a total annual capacity exceeding 100,000 tons
Two advanced R&D centers with full in-house laboratories and patented formulation capabilities
Certified quality and production systems: ISO 9001, EU REACH, HALAL, FAMI-QS
25+ patented technologies and 20+ registered trademarks, including VINNATE®, VAMCELL®, BOMCELL®, THYLOCELL® and more
Dedicated QC management and global technical support teams ensuring fast response and reliable service
Strong supply stability with long-term raw material partnerships and automated production lines, ensuring consistent quality and on-time delivery
FAQ
GRATARD™ BR-03L is an efficient amino acid-based liquid gypsum retarder designed to prolong the setting time of gypsum systems. It offers low dosage, excellent fluidity retention, and stable performance without adverse effects on strength.
BR-03L is mainly suitable for gypsum board production. It helps manufacturers achieve better setting time control and improved workability during gypsum board manufacturing.
The recommended dosage of BR-03L is 0.015% to 0.3% by the total weight of components. The actual dosage should be determined through suitable tests according to the specific formulation and production conditions.
No. BR-03L can significantly extend the setting time of gypsum while having no adverse effect on strength, making it suitable for applications requiring stable final performance.
BR-03L is available in 200kg drums and 1100kg IBC packaging. It should be stored in a sealed container in a cool, ventilated, and dry indoor environment at 5-35°C, with a storage period of no more than 12 months.