Can I paint on the putty - Recommendations for repair

When repairing old buildings sometimes a situation arises when you have to align the walls and ceilings will be painted with paint.In this case the question arises: is it possible to putty over the paint, or it is better to spend its forces to complete removal?Will the putty to hold, or eventually disappear along with the old coat of paint?

survey painted

surface First of all, you need to understand what paint painted surface.To do this, wet it with warm water and a sponge.If the paint begins to foam, washed off - it vodoemulsionku, when moisture from the filler, it certainly begins to flake.Plastered on a paint can not.It needs to be completely removed from the walls and ceiling.For this moisten the surface with a sponge or a spray of warm water and let stand for 10-15 minutes.The paint comes off easily with a spatula, after which the surface will need to wipe with a damp cloth and dry.

If water-resistant paint is not coming off, so before you enamel based on linseed oil or other non-aqueous solvent.By such surface after preconditioning putty can be provided that the dye is firmly n walls.Check it's pretty simple: Take a metal spatula and scratched the paint in several places, the plane then carry out a spatula on the wall.If the paint exfoliates and falls off, it will have to be removed.

Preparing and leveling

surface paint removed by thermal, chemical or mechanical means.The chemical method involves the use of specific products, softening the enamel layer to the point where it can be easily removed with a spatula.Such formulations contain toxic solvents, and use them only in well-ventilated area.

thermal method is based on the property of the old paint to soften when heated.The paint is heated using a hair dryer building, and remove with a spatula.Mechanical peeling method comprises a coating layer with a spatula or sander.This is a fairly time-consuming and dusty work, therefore, if the paint is coming off only in some places, it is enough to clean them, and the rest of the surface is primed.

primer paint you want to use a special containing small particles, improve adhesion to the base filler.Typically, as these favor the quartz sand particles and the liquid base coats characterized by the ability to penetrate deeply into the paint layer, mating with it.This primer is called "Concrete-contact" and is used for the treatment of smooth surfaces such as tiles.After treatment, primer ink smooth surface becomes rough, which provides good adhesion to the wall plastering.