Solution of sand accumulation on corridor wall

The sand on the corridor wall may be caused by improper wall treatment, high humidity or aging materials. There are several ways to solve this problem.

Clean the wall

First, clean the corridor walls with clean water and detergent, remove old paint and dust, and let the walls dry thoroughly.

Confirm the affinity of the wall.

Before painting, you need to determine the affinity of the wall and wipe it gently with your fingers. If there is no sand on your fingers and the wall has strong affinity, you can draw.

Brush anti-crack putty

If there are deep cracks in the wall, anti-crack putty can be used to fill the cracks and level the wall.

Choose the right paint

Select the coating suitable for the wall material, and apply 2~3 layers to make the wall smooth.

Periodic inspection

Check the condition of the wall regularly, and handle the problems in time when found.