DEMACSA® P-308G — PCE Superplasticizer Powder for Gypsum-Based Systems

DEMACSA® P-308G is a powdered polycarboxylate ether (PCE) superplasticizer engineered through optimized molecular design and advanced copolymerization technology.

It provides high water-reducing efficiency, excellent dispersion, stable performance, and is especially suitable for gypsum-based formulations.

Typical dosage ranges from 0.05%–0.5% of the cementitious materials. Higher dosages should be tested to avoid segregation, bleeding or setting-time issues.

Key Benefits:

High water-reduction efficiency at low dosage

Excellent flowability & dispersion performance

Stable adaptability across different gypsum formulations

Controlled molecular structure ensures consistent quality

Environmentally friendly with no pollution

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Product Advantages

  • Enhances fluidity while maintaining system stability
  • Reduces water demand, improving strength development
  • Suitable for gypsum-based mortars requiring smooth flow
  • Minimizes bleeding and segregation when properly dosed
  • Good compatibility with fillers and other auxiliary additives

Technical Specification

AppearanceWhite to light brown powder with good fluidity
Water content(%)Max 5.0
pH value7.0 – 9.0
Bulk density(G/L)400 – 700
Average particle size (60 pass%)Min 90.0
Water reducing ratio in concrete test(%)Min 25.0

Technology department’s suggestion: comply with the standard of GB8076-2008 first class.

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Product Applications

DEMACSA® P-308G is ideal for gypsum-based systems such as:

Dosage Guideline:

General dosage: 0.05%–0.5% of cementitious material

Higher dosage requires compatibility testing

Recommended to perform adaptability tests for optimal performance

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
  • OEM 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 place below 25 °C;
  • Avoid humidity—product may absorb moisture if not properly stored
  • Shelf Life: 12 months from date of delivery under proper conditions.

Safety & Compliance

DEMACSA® P-308G is safe, non-toxic, and environmentally friendly.

It complies with ISO 9001 and EU REACH requirements.

Refer to the MSDS for detailed handling and safety information.

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 the dosage of P-308G?

Typical dosage is 0.05%–0.5% depending on the formulation.

Is it specifically for gypsum systems?

Yes—P-308G performs exceptionally well in gypsum-based products.

Will it cause segregation or bleeding?

No, when used correctly. Higher dosages require compatibility testing.

Is it environmentally friendly?

Yes—the product is green, clean, and safe for production environments.

Does it improve workability?

Yes—enhances fluidity, flowability, and reduces water demand effectively.

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