Naphthalene Sulfonate Formaldehyde (SNF Superplasticizer)
CAS Number: 9084-06-4
Naphthalene Sulfonate Formaldehyde (SNF) is a second-generation anionic superplasticizer produced by sulfonation of naphthalene followed by condensation with formaldehyde. It provides water reduction of 15–25% at dosages of 0.5–1.5% by weight of cement, and is compatible with all Portland cement types, slag, and fly ash blends. SNF powder grades offer excellent shelf stability and are widely used in precast concrete, ready-mix concrete, and dry-mix mortar systems.
Technical Specifications
| Appearance | Light brown powder or dark brown liquid |
| Chloride Content | ≤0.2% |
| Recommended Dosage | 0.5–1.5% bwc |
| Water Reduction Rate | 15–25% |
| Solid Content (powder) | ≥93% |
Applications
- Ready-mix concrete with high workability requirements
- Precast and prestressed concrete production
- Dry-mix mortar and tile adhesives
- High-strength concrete (C50 and above)
- Shotcrete and tunneling applications
Key Features
- SNF Superplasticizer reduces water-cement ratio by 15–25% without slump loss at equivalent workability
- Cost-effective second-generation superplasticizer with proven performance in tropical and hot climates
- Powder form provides long shelf life and flexible dry-blend manufacturing
- Compatible with OPC, SRPC, blast furnace slag, and fly ash cement blends
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CAS Number
9084-06-4
Category
Specialty Concrete AdmixturesAvailability
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