General description Weathershield Multi Surface Quick Dry Satin from Dulux is a water-based finish designed for exterior use on wood, metal, and uPVC. It provides 6 years of weather protection, ensuring your surfaces remain in excellent condition. Technical specifications Type: Water-based finish Volume: 750ml Weather protection duration: 6 years Mould resistant Flexible to prevent cracking Installation Ensure all surfaces are clean (free from dirt, grease, rust, or flaking paint) and dry before application. Treat areas affected by mould, algae, or fungi with an appropriate fungicidal wash. Sand down surfaces to remove any sheen. For metal surfaces, remove rust using Hammerite Rust Remover. On new galvanized surfaces, allow to weather for six months before application. For new bare wood, prepare with Weathershield Exterior Preservative Primer+, wiping off any excess. Repair surface defects using the appropriate Polycell product. For uPVC, apply directly to a clean substrate.