The should be sealed before cupboards are installed. Before installing cupboards, custom cabinet builders usually seal inside and out. However, many modular cupboard maker do not. Make the cupboards more cost-effective and this stage is usually skipped in a effort to save lots of money. For those who have any cabinets that are modular, or you’ve built cupboards yourself, it is possible to seal them your self — it makes them easier to clear and shields them from dampness. And you never need to use sealer that is costly — it is nothing but lacquer any way.
Remove the doors in the cabinet. Place them face-up across two saw-horses. Place the cupboard up right across two saw-horses.
Fill a spray-gun canister with pre-catalyzed lacquer. Hold 8″ in the surface of the doorways to the gun. A damp band of lacquer on the other side of the the top of doorways, overlapping each band by 1 inch. Hold the gun spray and horizontally across both edges, and the top and bottom of every door. Wait 1-5 minutes for the lacquer to dry.
Hold the gun in the cabinet. Spray on the other side of the rear of the cupboard in bands before the back is moist. Spray down and up both sides before the sides are moist. Tip the gun to ensure it is facing upright and spray the very top of the cupboard. Back out the gun somewhat and spray bands until its moist around the base of the cupboard. Wait 1-5 minutes for the lacquer to dry.
Flip the doorways over face-down and spray them as you did the first time. Wait 1-5 minutes for the lacquer to dry.
Fold a bit of 180-grit sandpaper 3 times. Till they have been covered in white powder, Palm it in your hand and sand the area and sides of the doors. Do not remove the powder, it helps with curing the coat.
Sand the within of the cupboard. Sand bottom, the leading and equally sides till they are coated in white powder. Do not eliminate the powder.
Spray the within of the cabinet just as you as well as the doorways did. Wait 3 minutes. Flip the doorways over. Spray and sand them to end.