1. Product Introduction

Styrene‑acrylic surface sizing agent is water‑based emulsion polymerized from styrene and acrylate monomers. It is available in cationic and anionic types, serving as a mainstream surface sizing agent for papermaking and often used together with starch.

Core Advantages

• Excellent film‑forming property & high strength: Effectively reduces paper linting and dusting to improve printability.

• No curing period & low re‑humidification risk: Compared with AKD, it delivers instant performance upon application with better stability.

• Cost‑effective: Suitable for high‑speed paper machines and widely applied to containerboard, paperboard, cultural paper and most other paper grades.

2. Latest Global Industry Updates (2025‑2026)

• Global Market Landscape: Styrene‑acrylic surface sizing agent is the most‑consumed synthetic sizing agent worldwide. Major overseas suppliers include BASF, Solenis and Kemira. China is the world’s largest producer and exporter.

• Export Requirements: EU enforces APEO/NPEO‑free standards. Compliant SDS and REACH registration are mandatory for customs clearance.

• Market Trend: Soaring papermaking capacity in Southeast Asia fuels strong exports of Chinese general‑grade products. International giants focus on high‑end special grades featuring high stability and adaptability to high‑waste‑paper furnish.

• Price Trend: Global prices edged up at end‑2025 due to styrene raw material volatility.