Processes for preparing trim boards

摘要

There are provided processes for manufacturing trim boards. The processes can comprise applying a thin layer comprising a solvent based alkyd based primer sealer on at least one surface of the trim board; heat drying the thin layer so as to at least partially cure the thin layer comprising the solvent based alkyd based primer sealer; cooling the at least one surface; and applying a thin layer comprising a sealer on the thin layer comprising the solvent based alkyd based primer sealer. There are also provided methods for reducing and/or preventing migration of tannins in pine wood.

主权项

1. A process for manufacturing a trim board, said process comprising:
applying a layer comprising a solvent based alkyd based primer sealer on at least one surface of said trim board, wherein said layer comprising said solvent based alkyd based primer sealer has a thickness that is less than about 0.25 mm, and wherein said solvent based alkyd based primer sealer has a VOCs content of less than 400 q/L; heat drying said layer so as to at least partially cure said layer comprising said solvent based alkyd based primer sealer, wherein said heating is carried out during a period of time of about 1 to about 6 hours; cooling said at least one surface; and applying a layer comprising a sealer on said layer comprising said solvent based alkyd based primer sealer.