Fibre-cement cladding – peeling or flaking paint

Cause

Thermal expansion and contraction 

Repair

  • scrape and/or sand off loose paint; allow to dry; sand until surface is sound; prime; paint with a minimum two coats of semi-gloss or high gloss acrylic paint

Cause

Loss of adhesion due to moisture being absorbed by the substrate

Repair

  • scrape and/or sand off loose paint; allow to dry; seal; paint with a minimum two coats of semi-gloss or high gloss acrylic paint

Cause

Poor initial substrate preparation

Repair

  • scrape and/or sand off loose paint; seal; paint with a minimum two coats of semi-gloss or high gloss acrylic paint

Cause

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

Repair

  • scrape and/or sand off loose paint; seal bare material as required; paint with a minimum two coats of semi-gloss or high gloss acrylic paint

Cause

Surface was damp or dirty when painted previously

Repair

  • scrape and/or sand off loose paint; seal bare material; paint with a minimum two coats of semi-gloss or high gloss acrylic paint

Cause

Dark colours 

Repair

  • scrape and/or sand off loose paint; seal; paint with a minimum two coats of light coloured semi-gloss or high gloss acrylic paint