How do you get paint off the old wall of a balcony?

with a detergent.

To clean the paint, be careful not to thinner. This stuff works well and is easy to clean.

There is no need to shovel clean, use a chisel to chisel the wall into a small pit to apply tiles.

Using a cornea machine with a special grinding piece is more choking.

This situation is more common in the renovation of old houses, the most commonly used method is that you said to clear the surface, see the cement inside, although it is said that the cleaner the better, but in the actual operation of the workload is too large, so it is generally dotted, that is, the use of a chopping axe (a tool) to cut out a point on the wall, these points are to see the cement, the interval between the points is about 10cm, so that the adhesive force of the surface brick is no problem;

The second is to paint again with cement, the specific operation is: buy a galvanized steel wire mesh, lay a layer on the wall, fix it with anchor bolts, and then paint it with cement, and so dry in the pasting surface bricks, but this method is used less, and the disadvantage is that the thickness of the wall is increased and the indoor area is reduced.

908 construction glue sticks by itself.

Save money, effort, time and trouble.