Knotty pine walls – Starting with sand the entire surface of each knotty pine wall with an electric hand held sander. Sand down 1/16 to 1/8 of an inch, or even bare and unfinished wood is exposed and you have removed all the old finish. Two, remove all sanding dust from every wall and floor below with a soft cloth and a shop vacuum. Any dust created sanding dust will be gone when you use the stain.
Apply stain to each wall, with a soft cloth, a wall of time. Working in small four feet wide and 4 meters high sections to prevent the stain put on the knotty pine walls for a long time, creating dark spots and borders. Work in small areas to ensure all excess stain gets wiped off immediately. Four, slowly pour polyurethane in a paint tray. Do not touch the polyurethane before use-it creates air bubbles. Apply polyurethane to each wall with a roller. Fill in the areas that the roller cannot reach-such as corners and edges-with an edge or a small brush.
Apply polyurethane as soon as you have finished coloring, there is no waiting. Five, let the first coat of polyurethane to dry for 4 to 6 hours. Apply a coat of polyurethane to each wall to ensure that the knotty pine walls be washed and the stain will be protected. Let the second coat of poly dry for 12 hours, or overnight, before using or furnishing of the room.