RETARDING POWDER PCE · CSA CEMENT SYSTEMS

570P Gypsum-System Polycarboxylate Water Reducer Powder

Built specifically for gypsum chemistry — 570P delivers high flow without disrupting the hydration behavior gypsum-based products depend on, and works across natural, FGD, and phosphogypsum sources.

NOVASTAR-Polycarboxylate Superplasticizer-PCE570P-Product

Overview

Gypsum particles flocculate differently from cement, and admixtures designed for Portland cement often underperform or destabilize gypsum-based formulations. 570P is engineered from the ground up for gypsum systems — self-leveling underlayments, plastering compounds, joint fillers, and decorative gypsum products.
 
It works reliably across three mainstream gypsum raw materials: natural gypsum, FGD flue-gas desulfurization gypsum, phosphogypsum, suitable for raw material switching from different suppliers or regions.

Why Formulators Choose 570P

Technical Specifications

Property Value
Appearance White to pale-yellow free-flowing powder
Main component Modified polycarboxylate copolymer (PCE)
Solid content 95% – 98%
pH (10% aqueous solution) 6 – 9
Water reduction rate ≥ 37%
Compatible gypsum sources Natural gypsum, FGD gypsum, phosphogypsum
Packaging 25 kg paper bag with inner PE liner
Shelf life 12 months in sealed dry storage

Recommended Applications

NOVASTAR-Polycarboxylate Superplasticizer-PCE570P-Manufacturer

Formulating on a cement base instead? See 530P for OPC or 540P for sulphoaluminate cement.

Need Formulation Support or Free Trial Sample?

Tell us your gypsum raw material type and target product, our technical team will recommend suitable dosage.

How it Works?

570P adopts comb-shaped molecular structure to disperse aggregated gypsum particles via steric hindrance, specially optimized for gypsum surface chemical properties.
 
Hydrophilic groups on molecules form hydrogen bonds with water, forming stable hydration film around gypsum particles. This film cuts interfacial tension, creating ball-bearing lubrication effect, achieving high fluidity slurry with lower water dosage.
 
The formula will not break gypsum normal hydration process.

Packaging & Shipping

Frequently Asked Questions - FAQs

Compatible with natural, FGD and phosphogypsum. Trial batch is recommended when switching raw material suppliers.
Improves flow without obvious disruption on gypsum hydration. Contact technical team if precise setting time control is needed.
Yes. Better particle dispersion brings smoother, uniform finished surface.
Depends on gypsum raw material and target flow. Download TDS for reference dosage range, or consult technical support.

Related Products

530P

Superplasticizer Powder for OPC Systems

540P

Sulphoaluminate Cement Retarding Superplasticizer

580P

High-Performance Universal Cement Admixture