CAPXIDAN™ HD is a Modified Copolymer produced with a proprietary, specialized formulation. It is designed to be coextruded over Wood-Plastic Composite (WPC) deck boards to provide moisture, stain, wear resistance, aesthetics, durability at elevated temperatures, and unprecedented adhesion to the WPC substrate. CAPXIDAN™ HD is a two-component capstock system. The CAPXIDAN™ resin should be extruded together with a specific synergistic additive masterbatch in the recommended proportion of 98:2 by weight.