Chalk runs

Problem - Chalk run-down
The downward seeping and running of pigment and filler from excessively eroding paint onto other areas below, for example brick walls.

Possible cause

  • Use of a highly chalky paint. Chalk residue may spread downwards with water on to the area below, where it is then absorbed.


For surface preparation, see Chalking.

Apply a suitable Tikkurila exterior paint. Acrylate paints are less chalky than oil paints.