Concrete wall – peeling or flaking paint

Cause

UV deterioration

Repair

  • scrape and/or sand off loose paint; clean until surface is sound. Allow to dry thoroughly then repaint with a system suitable for concrete.

Cause

Loss of adhesion due to excess moisture in substrate

Repair

  • scrape and/or sand off loose paint; clean until surface is sound. Allow to dry thoroughly then repaint with a system suitable for concrete.

Cause

Poor initial substrate preparation

Repair

  • scrape and/or sand off loose paint; clean until surface is sound. Allow to dry thoroughly then repaint with a system suitable for concrete.

Cause

Oil-based (alkyd) paint applied over water-based (acrylic) paint

Repair

  • scrape and/or sand off loose paint; clean until surface is sound. Allow to dry thoroughly then repaint with a system suitable for concrete.

Cause

Surface was damp or dirty when painted previously

Repair

  • scrape and/or sand off loose paint; clean until surface is sound. Allow to dry thoroughly then repaint with a system suitable for concrete.

Cause

Dark colours

Repair

  • scrape and/or sand off loose paint; clean until surface is sound. Allow to dry thoroughly then repaint with a system suitable for concrete.

Cause

Paint coating at end of serviceable life

Repair

  • scrape and/or sand off loose paint; clean until surface is sound. Allow to dry thoroughly then repaint with a system suitable for concrete.