Unique one-component Class A modified polyester resin formulated specifically for liquid composite RTM or Vacuum Infusion type processes. POLYLITE® 31515-08 is suited for use in highly visible moulded parts for applications with critical requirements for Class A surface quality and dimensional stability. POLYLITE® 31515-08 is typically used with gel coat on at least one surface. Structural Composite FRP parts, of all sizes, requiring Class-A surface and dimensional stability.