How to remove old putty

Putty is a powder or paste material which is prepared by mixing binders, chalk, plaster and linseed oil in certain proportions. Wall shpatlyuyut for the purpose of leveling the surface and warming the room. But with time comes the time of repair and in this case not to do without removing the old layer of putty.

You will need

• - starch;
• - spatula;
• - chisel;
• - coarse sandpaper;
• - roller;
• - hammer;
• - old Newspapers or polyethylene;
• an electric grinder.

Instruction

1. The removal of putty – it is dirty and dusty, and therefore requires special training. First, take the furniture to another room, cover the floors with several layers of old Newspapers or polythene, Windows and doors, close the film. Wear appropriate clothing. Prepare all the necessary materials, wear protective glasses, mask or respirator and gloves.
2. Despite the fact that putty is extremely resistant material, it is susceptible to certain types of damage. To separate the old layer using the spatula, scraper, or other improvised tool. The strength of the plaster depends entirely on how tightly coupled blend with the wall.
3. If you cannot clean off the plaster and prepare the starch solution. To do this, mix potato starch with warm water (two tablespoons of starch per liter of water) until a homogeneous mass. Wet the roller in the prepared solution and walk around the perimeter of the treated wall two or three times, leave it on for thirty minutes.
4. Take a sharp and a broad spatula, begin by cleaning the old layer of finishing material from the wall, moving in sure movements from top to bottom. If the layer is several millimeters will work a little and you'll quickly cope with the task.
5. If the layer of putty is very old and is more than half an inch, in this case not to do without a cutting tool. Take the chisel, apply to the wall and tilt at an angle of 45 degrees. With a hammer, the blows of medium strength start to chop off the old putty. Start in those places where the material is holding up the worst, gradually increase the area of the surface being cleaned.
6. Use for leveling the surface grinder or coarse sandpaper. Cutting produce joints between the tiles using a chisel or a special spatula in triangular form. When the electric polisher you will greatly facilitate their work, but dust and noise will be a lot. Left to wash off the dust from the walls, dry the surface and begin decorating.