BOTAI Supply GRATARD™ BR-007 Gypsum Retarder Additive for Gypsum Plaster, Self-Leveling and Boards

GRATARD™ BR-007 Gypsum Retarder is a high-efficiency setting time control additive specially formulated for gypsum-based systems. It is a white to light-yellow powder produced through advanced spray-drying technology, based on modified amino acid chemistry.

The product precisely controls the crystal growth rate of gypsum dihydrate, allowing flexible adjustment of setting time without compromising mechanical strength or workability. It performs effectively in neutral and alkaline environments, making it suitable for a wide range of gypsum formulations, including plaster, putty, self-leveling, and gypsum board production

Key Benefits:

Excellent retarding performance with stable setting time control

Low dosage and high cost efficiency

Good compatibility with other gypsum additives (e.g., water reducers, stabilizers, defoamers)

High adaptability, suitable for all gypsum types (natural, desulfurized, phosphogypsum)

Free-flowing powder, easy to mix uniformly into dry formulations

Consistent stability and long shelf life under standard storage conditions

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Product Advantages

  • Good retarding effect
  • Low dosage
  • High cost performance
  • Good adaptability, especially suitable for all kinds of gypsum powder
  • Good fluidity
  • Easy to mix with other powders in gypsum mortar
  • Good stability
  • Easy to store
  • Compatible with most gypsum additives (such as water reducer, stabilizer, defoamer, etc.)

Technical Specification

Specifications and modelsItemValue
BR-02G (Protein)
BR-007 (Modified Amino acid)
BR-50 (General purpose)  
AppearanceWhite or light yellow powder
pH value7-13(1%sol)
Bulk density400-800g/L
Moisture≤3.0%

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Product Applications

GRATARD™ BR-007 Gypsum Retarder is suitable for various neutral and alkaline gypsum-based systems, including:

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: 25 kg paper bags with PE inner liner
  • 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 cool, dry, and ventilated area below 25 °C.
  • 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-007 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.

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.

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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

What is GRATARD™ BR-007 used for?

It’s used to adjust the setting time of gypsum-based mortars, plasters, and boards.

 What is the typical dosage?

Between 0.05 – 0.2 %, depending on the system and setting time requirement.

Is it compatible with other gypsum additives?

Yes — it works well with water reducers, defoamers, and stabilizers.

What types of gypsum can it be used with?

Applicable to natural gypsum, desulfurized gypsum, and phosphogypsum.

What is the shelf life?

12 months under dry, cool, and sealed storage conditions.

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