A two-pack primer giving a barrier effect with high mechanical impact resistance, suitable for providing anticorrosion protection on any surface (wood, steel, aluminium and GRP) exposed to the marine environment. Use as a priming coat for paint which will be continually submerged or as an undercoat for superstructures and topsides. If it is not possible to follow the recommended overcoating times, and when painting over with undercoat (Polyrex pro ), it is advisable to sand Plastolite pro between two successive coats. When Plastolite pro is overcoated with Adherglass on the undersides or with a polyurethane finish such as Gel Gloss pro or Superverex Antiskid sanding is not required.