Westlake Royal Building Products offers its Kleer Protective Film on Kleer Trimboards and Sheets with both smooth and wood-grain surfaces. The film is designed to protect the trim against dust and dirt during storage, handling, and installation. The manufacturer says the film, which should be removed immediately upon installation of the trim, peels off easily without leaving residue behind. Products with the film applied should not be exposed to direct sunlight for extended periods. kleerlumber.com