Styrene‑Acrylates Copolymer (CAS:25085‑34‑1), is an anionic aqueous polymer emulsion produced by free‑radical emulsion copolymerization of styrene and acrylate monomers. It appears as milky‑white homogeneous liquid without coarse particles, featuring outstanding film‑forming property, high coating hardness, excellent water resistance, alkali resistance and scrub resistance. It has good substrate adhesion, anti‑yellowing performance and compatibility with various pigments & fillers. Widely adopted as core film‑forming binder for water‑borne architectural coatings, printing inks, paper sizing agents, textile printing and daily‑chemical opacifying formulations. Our production adopts stable emulsion polymerization process, strictly controls solid content, viscosity and particle size indicators, with stable batch‑to‑batch consistency, compliant with industrial coating raw‑material requirements, extensively applied in paint & coating, printing & packaging, papermaking, textile auxiliaries and fine chemical compounding fields.
| Items | Specifications |
| Solid Content | 46±1.0% |
| pH Value(25℃) | 7.0‑9.0 |
| Viscosity(25℃) | 2000‑8000 mPa·s |
| Mechanical Stability | Pass |
| Appearance | Milky White Homogeneous Liquid |
Applications
★Architectural Coating Industry (Core Consumption Field): It acts as key film‑forming binder for interior & exterior wall latex paint. It forms continuous protective film after water volatilization, endowing coating layers with high hardness, good water‑proof, alkali‑proof and scrub‑resistant capacity, improving weather resistance and anti‑yellowing performance of finished paint; compatible with inorganic pigments, fillers and various additives to optimize paint construction performance and final coating effect.
★Printing & Packaging Industry: Serves as resin binder for water‑based flexo/gravure printing ink. It enhances ink adhesion on paper, plastic substrate, improves ink gloss, friction resistance and water‑fast performance, reduces printing plate wear, fits high‑speed printing production conditions. Also used for water‑borne overprint varnish to boost surface protection effect for packaging materials.
★Papermaking & Textile Industry: Applied as paper surface sizing agent and coating binder, promoting paper surface strength, anti‑water performance and surface smoothness, reducing paper dust‑dropping phenomenon. For textile pigment printing, it works as printing binder to make pigment firmly attach to fabric, improving washing‑fastness and rubbing‑fastness of printed patterns, keeping fabric soft hand‑feeling.
★Daily‑Chemical & Fine‑Chemical Manufacturing: Used as opacifier for shampoo, body wash and liquid detergent, bringing uniform creamy appearance for surfactant system without influencing formula stability. It can also compound with multiple auxiliaries for preparation of water‑borne adhesives and surface treatment agents for metal materials.
★Other Related Fields: Suitable for industrial water‑borne protective coatings, concrete surface treating agents. It can be compounded with other polymer emulsions to adjust finished product hardness, flexibility and chemical resistance to satisfy diversified formulation demands.
Product Advantages
✅Excellent comprehensive film‑forming performance: The cured film owns balanced hardness‑flexibility, outstanding water‑resistance, alkali‑resistance and long‑term anti‑yellowing property. ✅Great compatibility: Good miscibility with pigments, fillers and most water‑borne auxiliaries, low risk of formula flocculation & stratification. ✅Strict batch quality & heavy‑metal control system conforms to mainstream industrial raw‑material standards; multiple viscosity & solid‑content grades (SA‑100, SA‑200) available for different processing requirements. ✅Complete batch inspection provided before shipment, full COA test report, MSDS and relevant qualification documents prepared for customers customs clearance of various countries. ✅Large‑scale continuous production line guarantees abundant spot stock, supporting small sample trial purchase and full‑container long‑term framework order with fast delivery arrangement.
Packaging & Storage
Standard package: 200kg industrial plastic drum with inner anti‑leak liner; bulk IBC tank can be customized for large‑volume bulk orders. Store products inside cool, dry and well‑ventilated indoor warehouse, keep packages tightly sealed all the time. Stay away from direct sunlight, high‑temperature heating source and strong freezing environment. Avoid mixing with strong oxidants, strong acid and strong alkali substances. Prevent high‑temperature exposure and frost damage during stacking and transit. Valid shelf‑life reaches 6 months under standard sealed cool storage condition.
Safety Information
Low‑irritation aqueous polymer emulsion with no severe toxic hazard. Long‑time frequent direct contact with skin may cause slight dryness; wear dust‑proof mask and disposable gloves during unpacking and feeding to avoid long‑term skin & mucous membrane contact. Do not discharge raw material directly into sewer. Classified as non‑dangerous goods for all land, sea and air international transportation. Complete MSDS including leakage cleaning treatment, accidental contact first‑aid guidance will be supplied with each batch of goods.
With 15 years of chemical foreign trade experience, our core advantages: 1, 70,000㎡ warehouse (20,000-ton capacity), moisture-proof & temperature-controlled, easy for large orders;
2, Free Samples (Shipped within 3-7 days), Zero Trial Cost;
3, Production cycle of dangerous goods: 45-60 days, transparent lead time;
4, Hold dangerous chemicals operation license & ISO certifications, smooth customs clearance;
5, 6 packaging options, logo customization available, reduce losses;
6, 400+ chemical SKUs, one-stop procurement saves costs. Please inform procurement volume, target market, etc., we'll customize a plan for you!
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