Styrene-Acrylic Copolymers
Cost-effective styrene-acrylic emulsions delivering strong adhesion, excellent alkali resistance, and balanced hardness — the smart choice for interior paints, primers, and paper coatings.
Product Overview
Styrene-acrylic copolymer emulsions combine the hardness and gloss contribution of polystyrene with the flexibility and adhesion of acrylic co-monomers. The result is a cost-effective binder family that outperforms pure vinyl acetate in scrub resistance, alkali stability, and water resistance — while remaining more economical than pure acrylic systems.
JCT’s SA grades are widely used in interior wall paints (D2/D3 class), concrete primers, paper and board coatings, and carpet backing. APEO-free and low-VOC formulations are available across the range.
Product Grades
| Grade | Styrene Content | Tg (°C) | Solids (%) | pH | Primary Application |
|---|---|---|---|---|---|
| JCT-SA310 Best Seller | 40% | +20 | 48 ± 1 | 8.0–9.0 | Interior emulsion paint, ceiling paint |
| JCT-SA320 | 50% | +40 | 50 ± 1 | 7.5–8.5 | Semi-gloss interior, paper coating |
| JCT-SA330 | 35% | +15 | 50 ± 1 | 8.0–9.0 | Exterior primer, adhesion promoter |
| JCT-SA340 | 45% | +30 | 48 ± 1 | 7.5–8.5 | Carpet backing, textile bonding |
| JCT-SA350 Low Odour | 40% | +22 | 50 ± 1 | 8.0–9.0 | Interior use — low residual monomer |
Key Performance Properties
Recommended Applications
Try JCT Styrene-Acrylic in Your System
Competitive pricing, consistent batch quality, and technical support from our Shanghai R&D team.