Surface Preparation Checklist Before Painting
What this page answers
Many paint failures originate before the finish coat is applied. The preparation step should be matched to the substrate and existing condition.
Many paint failures originate before the finish coat is applied. The preparation step should be matched to the substrate and existing condition.
People-first informationLocal business contextEvidence-aware
Walls and ceilings
- Remove loose or failing material.
- Address dust, chalking, grease and contamination.
- Repair cracks and uneven areas where required.
- Use the primer/undercoat specified for the chosen system.
Metal
- Remove loose rust and contaminants.
- Prepare the surface according to the selected primer/enamel system.
- Do not assume an interior wall primer is suitable for metal.
Wood
- Identify whether the finish is enamel, PU, lacquer or another wood system.
- Prepare/sand according to the manufacturer's system.
- Use compatible sanding sealer/primer where specified.
Existing paint
Do not cover a failing substrate simply because a new paint has high advertised performance. First determine whether the old coating is sound, compatible and properly prepared.
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