Marine Coatings Solutions

Copper Acrylate Self-Polishing Resin (CASPR) is an advanced environmentally responsive antifouling binder specifically designed for marine coatings. Through controlled hydrolysis in seawater, it gradually releases copper ions and renews the coating surface, providing long-term fouling prevention while complying with IMO and EU biocidal regulations.    Our products' Key Features & Advantages Property Technical Benefit Self-Polishing Effect Hydrolyzes at 5-10μm/year, maintaining smooth hull surface and reducing drag (fuel savings up to 12%). Copper Ion Release Sustained Cu²⁺ release (0.5-2 μg/cm²/day) effectively inhibits barnacles/algae. Eco-Friendly Formula Replaces toxic TBT/Cu₂O; passes OECD 201/202 aquatic toxicity tests. Broad Compatibility Works with acrylic copolymers, rosin derivatives, and modern foul-release silicones.   Target Applications Commercial vessels (Cargo ships, tankers) Offshore structures (Oil rigs, buoys) Leisure boats (Yachts, fishing vessels) Naval ships (With enhanced Cu⁺ stability for high-speed sailing)   Technical Specifications Parameter Value Test Method Solid Content 45±1% ISO 3251 Viscosity (25°C) 170~220 cPs Brookfield LV, spindle 3 Density(20°C) 1.04 g/cm3   Cu Content 15-18 wt% ICP-OES

Silyl acrylate self-polishing resin SPSi-A100 is a high-performance binder resin developed based on advanced hydrolyzing acrylic silicone polymer technology, specifically designed for the new generation of environmentally friendly self-polishing antifouling coatings. Its precisely optimized resin structure enables controlled hydrolysis and self-polishing behavior in seawater, ensuring the continuous and stable release of antifouling agents.   SPSi-A100 is suitable for formulations containing cuprous oxide antifouling agents and can be flexibly combined with varying contents of rosin (CDP) to meet the comprehensive performance requirements of different shipping routes, vessel speeds, and service cycles. Self-polishing antifouling coatings formulated with this resin can provide approximately 5~6 years of antifouling and protective performance (the actual service life depends on the coating formulation, vessel operating conditions, and sailing areas), thereby significantly extending maintenance intervals and reducing total lifecycle maintenance costs. Meanwhile, this product system complies with stringent environmental regulations and features low VOC, demonstrating a sustainable and environmentally responsible approach while delivering excellent anticorrosion and antifouling performance.   Properties: Appearance Colorless or light yellow transparent viscous liquid Polymer solids ≥50.0% Viscosity 120-240cps Density 1.01g/ml   The Key Advantages of SPSi-A100: Optimized resin structure ensures continuous and stable release of antifouling agents Suitable for formulations containing cuprous oxide antifouling agents, with strong formulation compatibility Can be flexibly combined with different levels of rosin (CDP) to meet diverse application requirements Stable self-polishing performance with a well-controlled polishing rate Long-lasting antifouling performance of up to 5~6 years Capable of forming a smooth coating with excellent drag-reducing performance. Low VOC, compliant with environmental regulations Package and Storage: Package: 20kg, 190kg/drum Store in a dry, ventilated, and dark place; keep sealed and protected from light, fire and moisture. Shelf life: 12 months