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
