M.L. Campbell POLARION X 2K Acrylic Exterior Polyurethane is the latest advancement in high-performance wood finishes for entrance doors, garage doors, trim, millwork or any exterior wood surface that needs to resist the toughest weather mother nature serves up. POLARION X is a durable, exterior, polyurethane system of sealers and clear topcoats with a full range of sheens. It’s easy to use and manage utilizing just one catalyst and mix ratio. Let the rough weather come. A POLARION X finish is tough enough to take it. Performance Superior scratch/mar, chemical and moisture resistance Non-yellowing, acrylic polyurethane technology Excellent UV resistance 5:1 catalyst mix ratio with no solvent reduction required based on spray conditions Extended pot life to aid in production