Rapid-Hardening Sulfoaluminate Expansion Powder, Chemical Foaming Agent for Polymers

• Customization: Available
• Grade Standard: Industrial Grade
• Transport Package: 25kg/Bag
• Model NO.: EX-1
• Specification: bag
• Trademark: JUFU
• Origin: China
• Production Capacity: 50000mt/Year

Product Description

Product Description:

A high-performance calcium sulfoaluminate (CSA)-based expansive agent designed to compensate for drying shrinkage and thermal contraction in cementitious materials. It generates controlled expansion during hydration, enhancing concrete durability by preventing cracks in critical structures. Ideal for projects requiring dimensional stability and watertightness.

 

Specifications

Parameter	Value
Main Composition	Calcium Sulfoaluminate (CSA), Anhydrite
Expansion Rate (7d)	0.02%-0.10% (adjustable)
Setting Time	Initial: 30-60 min, Final: ≤4 hrs
Alkali Content	≤0.5% (Low-alkali formula)
Particle Size	80-120 μm (Fine Powder)
Packaging	25 kg/bag or 1 ton/jumbo bag

Application

 

1. 1. Construction:

   • Compensate shrinkage in concrete (e.g., bridges, tunnels).

   • Produce lightweight prefabricated panels.
      

2. 2. Polymers:

   • Create foamed PVC (flooring, cables), EVA (shoe soles).
      

3. 3. Ceramics:

   • Reduce kiln firing defects via controlled expansion.
      

4. 4. Rubber:

   • Vulcanization aids for spongy rubber products.
      

5. 5. Packaging:

   • Expandable polystyrene (EPS) for insulation.

 

Package and storage

 

Packaging:

• 25 kg woven bags with moisture-proof lining.

• 1-ton bulk bags (FIBCs) for industrial buyers.
   

Storage:

• Keep in dry, cool conditions (<30°C, humidity <50%).

• Avoid direct sunlight and contact with acids/bases.