Since this work entails the appearance of sticky dirt and dry debris, you need to get old clothes and protective gloves.
So, the whole process of removing the old paint should begin with the removal of window frames, from which then it is very neatly necessary to extract glass. They need to be put in a secluded place for the safety. Then the whole retired paint is removed from the frame. By the way, it is recommended to remove firmly holding layers of paint using an electric hair dryer or a soldering lamp. A stream of hot air must soften a small area of the painted surface, which will provoke the “sliding” of the paint from the frame.
To accelerate the process, you can use a flat spatula that is easy to scrap the soft mass. But in the joints, it is best to use a triangular spatula. So that dirt does not smear the frame, the spatula must be wiped with rags as often as possible.
In addition, you can get rid of the old paint using a special wash, which is applied to the painted area with a narrow -shaped brush and kept for several minutes. As a result, the frame will begin to be covered with bubbles, and the paint will simply slide from it. The air mass is removed by a spatula, and, if necessary, the washing is applied again. The already purified frame is washed with a small amount of water.