- 2081 Bhadra · 2 marks
Painting a new plastered surface
Short answer
Allow plaster to dry fully, clean and repair cracks, apply an alkali-resistant primer, then putty if needed. Follow with an undercoat and two finishing coats, sanding between coats.
Describe in steps the procedure of applying paint on a new plastered surface.
Steps for painting a new plastered surface:
- Drying: Let the plaster cure and dry fully (at least 2–3 weeks) so alkali and moisture escape.
- Cleaning: Remove dust, loose particles, mortar splashes and efflorescence with a wire brush and dry cloth.
- Repair: Fill cracks and holes with cement or putty, and level with sand paper.
- Priming coat: Apply a coat of alkali-resistant (cement) primer to seal pores and make the paint stick.
- Putty/filler: Apply wall putty if a very smooth surface is needed; sand after drying.
- Undercoat: Apply one coat of undercoat and sand lightly.
- Finishing coat: Apply two coats of the final paint, each after the earlier coat is dry.
✓ Answer checked by Claude Opus 5.5 (high effort)
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