Bare particle board will reject paint unless it is treated with a primer base coat. Employ the proper preparation strategy, or your new finish will ultimately shed. Coat the particle board with a specific type of paint based on its location. Apply the finish, using the correct tools, or the wall may dry with unsightly brush marks. Employ a particular application strategy that will offer you the best chance at professional-looking results.
Dust interior particle board walls, using a broom. Rinse exterior particle boards, using a pressure washer. Allow the wall to dry for 24 hours. Do not skip this important step, as it is vital to promoting primer adhesion.
Protect areas adjacent to the particle board walls by covering them with tape. Protect surfaces beneath the particle board with dust sheets.
Coat the particle board wall with latex primer, using a roller. Roll vertically, proceeding left to right. Apply to one 3-by-3-foot area at a time. Use a polyester brush to smooth the wet primer, encouraging a finish free from roller marks. Proceed until all of the particle board is primed. Allow the wall to dry for two hours.
Wash the brush and roller frame with water.
Paint the particle board just as you primed it. Allow the wall to dry for two hours.
Finish exterior particle board walls with acrylic latex paint.
If you prime dusty particle board walls, adhesion problems may arise. Never paint unprimed particle board walls, or peeling will result.