Retarders
Lignosulfonate Retarder
Cost-effective · mild water-reducing · general compounding
Retarders
Organophosphonate Retarder
- Organophosphonate
- Low-dosage stable
- 1,000 kg IBC tote
- Volume discount
An organophosphonate-based retarder that gives stable retardation at low dosage and resists interference from aggregate and water ions, making it a preferred retarder component in admixture blends.
Stable retardation at low dosage · ion-resistant · blend-friendly
- Form
- Liquid
- Recommended dosage
- 0.03%–0.20% of cementitious material
Overview
An organophosphonate retarder that works via chelation and adsorption to slow hydration effectively even at low dosage, with low sensitivity to water and aggregate ions.
Key benefits
- Stable retardation at low dosage, cost-effective
- Resists ion interference in complex water
- Excellent compatibility with superplasticizers
Specifications
Specifications
| Appearance | Colorless to pale yellow liquid |
| Solid content | 25%–30% |
| pH | 3.0–5.0 |
| Set delay | +1h ~ +8h (adjustable) |
| Chloride | ≤ 0.01% |
Standards
Documents & data sheets
TDS, COA and MSDS are issued with every batch. Click a document and tell us the grade — we reply within 24 hours.
Application scenarios
- Admixture compounding
- Ready-mix
- Pumped concrete
- Hot weather
Product Q&A
How does it differ from sodium gluconate?
Organophosphonate is more stable at low dosage and more ion-resistant; they can be blended to balance cost and performance.
Where is it used?
Admixture compounding and water-sensitive applications.
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Sodium Gluconate Retarder
Strong set delay · lower heat of hydration · temperature-tolerant
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Excellent compatibility · no cratering · clean surface