5K High-Solids Acrylic Urethane Hardener is a professional-grade catalyst formulated to deliver superior cross-linking, enhanced durability, and a high-gloss finish when mixed with compatible urethane topcoats. Designed specifically for high-solids systems, this hardener accelerates drying time and improves chemical, UV, and abrasion resistance—making it ideal for automotive refinishing, industrial coatings, and custom projects.
Engineered for use in demanding environments, 5K H/S Hardener ensures optimal hardness and clarity while preserving flexibility and long-term gloss retention. Whether you’re refinishing a vehicle or applying protective finishes on metal or fiberglass, this hardener ensures consistent, professional-quality results every time
