How to remove paint from walls

During the repair often the situation arises when it is necessary to remove old paint from the plastered brick or concrete surface. For example, from the walls of the bathroom where you decided to make the trim tiles. Until some time and the kitchen walls are also painted with oil paint, he's not welcomed by many owners. Over the years, the paint is so firmly ingrained in the surface of the walls that seem to get rid of it no way. However, there are simple methods of removal of paint, used different methods and means.

Instruction

1. Manual mechanical method. The most primitive and the most time-consuming. Pick up the usual scraper or similar tool and begin to scrape (peel, remove) paint from the walls. This method requires large expenditures of physical strength and thus ineffective.
2. The thermal method. Enamel and oil paint, if they are very hot, begin to bubble and separate from the surface. So is a blowtorch or hot air gun to heat up the painted wall, the paint will begin to separate from the wall itself. However, there is a small problem: so easy to clean paint from wood surfaces, because wood is an insulating material. This is not the case with brick or concrete wall: the heat from the lamp instantly disperses on the whole surface of such wall depth and breadth.
3. Chemical method. In stores today presented a huge choice of means for removing paints. In their task, they are coping quite effectively, but for cleaning large surface and the amount of chemicals required large. That is, this method is expensive. And, second, these tools are characterized by high toxicity, therefore, to work with them in some cases becomes problematic (in the house small children or pregnant women who have some allergies, asthma, lung disease). The danger lies in the fact that by careless handling of drugs there is a risk of chemical burns, traces of which remain for life.
4. Electromechanical method. Using various tools you just peel the old paint from the walls. Your "assistant", for example, may be an angle grinder with a nozzle in the form of a disc with radially protruding metal wires. Even at the minimum rpm this tool it will remove the paint. However, there are disadvantages to this method. First, the nozzle must be changed after every 5 square metres of surface (approximately), because it wears out quickly. And secondly, this method is extremely noisy and produces a lot of dust, so we have to work with headphones or earplugs in the ears, and to wear a gauze bandage or even a gas mask.