Botai DEMACSA® Naphthalene-Based Superplasticizer SNF Superplasticizer Powder For Concrete,Dam and Port Construction

DEMACSA® SNF is a naphthalene-based sulfonated formaldehyde condensate (SNF) superplasticizer powder designed for high-performance concrete and mortar applications.

It provides excellent dispersion of cement particles, resulting in high fluidity, low water demand, and enhanced strength development.

This product is ideal for high-strength, early-strength, and large-scale structural concretes, offering stable performance, consistent workability, and superior surface finish even under challenging construction conditions such as dams, ports, and infrastructure projects.

Key Benefits:

High water reduction efficiency (≥ 14%) for superior flow and strength

Rapid early strength for shorter demoulding and faster construction cycles

Low air entrainment ensures dense, smooth concrete surfaces

Minimal setting delay, suitable for steam curing and precast production

Light color, ideal for white or architectural concrete

Excellent compatibility with all types of Portland cement and admixtures

Low chloride and alkali content, ensuring reinforced steel safety

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Product Advantages

  • It has strong dispersion effect on cement particles
  • It has good use effect of preparing super flowing concrete as well as cast-in-situ concrete and precast
  • It can comprehensively improve various properties of the concrete

Technical Specification

Appearance:Brown powder
Solid content(%):Min 91.0
Cl- content(%):Max 0.5
Na2SO4 content(%):Max 5.0
pH value:7.0—9.0
Surface tension(N/m):(71±1)x10-3
Net starch fluidity(mm):Min 210
Water reduction(%):Min 14

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Product Applications

DEMACSA® SNF is widely used in cement-based and high-performance concrete systems, including:

Dosage Guideline:

Recommended Dosage: 0.5 – 1.5 % by weight of total binder (depending on project and strength requirements).

Application Fields:

  • Dams and Port Construction
  • Highway and Bridge Projects
  • Urban Infrastructure & Residential Buildings
  • Precast Concrete Elements and Foundations

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: 25kg PP woven bags/fiber drums, or on clients’ request.
  • Custom Packaging: Available upon client 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 dry, cool, and well-ventilated area below 25 °C.
  • Avoid exposure to moisture; reseal packaging after use.
  • Shelf Life: 12 months from the date of delivery under proper storage conditions.

Safety & Compliance

DEMACSA® SNF Superplasticizer is safe, non-toxic, and environmentally friendly.

It conforms to ISO 9001 and EU REACH standards.

Refer to the MSDS for detailed safety and handling instructions.

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 DEMACSA® SNF mainly used for?

For high-performance concrete, especially in large-scale structures like dams, ports, and highways.

What is its water-reducing rate?

≥ 14% with excellent slump retention and low air content.

How should it be added?

Mix directly with dry materials or dissolve in water before batching.

What is its advantage over PCE?

SNF provides faster early strength and better steam-curing adaptability.

What is the storage life?

12 months when stored in a dry, sealed environment below 25 °C.

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