Paint is peeling off the wall. Will primer solve it?

What you can do

Check whether paint, filler or plaster is coming away and look for damp patches.
On a small dry accessible area, remove loose paint, clean and remove dust. Repair defects and prime only as the chosen products require.
Let the prepared layers dry, then test painting a small area before doing the whole wall.

The new coating should not detach with the old layer. Remaining dust or crumbling material means preparation is incomplete.

Stop for dampness, mould, deeply crumbling plaster or widespread detachment. Do not cover it with more paint.

NAPREMO can assess which layers need removal and prepare the wall. Find and resolve moisture problems before repainting.

Technical references