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KnowledgeBase about the common damages, its prevention and the recommended
- Inclusion of air
- Residual strain
- Modification of the painting environment
- Lengthening of the setting time
- Reduction of the paint's viscosity
- Modification of the paint and solvent mixture ratios
- Sand surface to smooth the holes and repaint.
- Painting over a surface affected with microbial growth.
- Seepage or dampness in buildings.
- Contamination of paint by materials used in putty preparation.
- Remove algae / fungus by high-pressure washing.
- Treat surface with Nippon Paint Fungicidal Wash. Wash again to remove any
- Allow wall to dry before applying with recommended paint.
- Clean with bleach solution and repaint.
Sags and Runds:
- Application of excessive thick coat.
- Use of a wrong thinner.
- Apply finish coat using recommended thinner.
- Do not apply thick coats.
- Sand surface to smooth the sagged areas and repaint.
- Paint Film is deprived of natural sunlight. (Especially in case of Enamels)
- Paint film subjected to too much sunlight.
- Use paints like Royale, Premium Emulsion
- Improved daylight and ventilation for inside work.
- Surface should be cleaned and repainted.
- Use recommended system
- Mold release agent (i.e., silicon oil)
- Machinery grease
- Dust or other contaminants attracted by static electricity
- Clean surfaces prior to sanding and remove all sanding dust.
- Remove paint completely from affected areas and repaint.
- Applying paint using poor quality brushes.
- Highly viscous paint.
- Careless Application.
- Use proper brushes and thin paint to desired proportion.
- Sand surface to a smooth finish and apply paint (after thinning to desired
- Use good quality brushes.
- Application of paint over oily, greasy or very smooth surface.
- Application over loose particles like dust or rust
- Condition of the paint (i.e. thinner, viscosity, film thickness).
- Matching of the substrate and paint (i.e. solubility and wetting, etc.)
- Not sanding previous coat of gloss paint
- Application over partially dried coat.
- Ensure proper surface preparation.
- Surface should be repainted
- Moisture on the wall
- Poor surface preparation or using incorrect painting system
- Happens on walls as well as wood or metal surfaces.
Prevention & Remedy:
Check and repair water seepage.
Ensure walls are dry before painting.
Use an alkali-resistant basecoat or sealer.
Patch surface defects with putty.
Prime wood before painting, sand surface and clean
Remove all paint from metal before re-painting. Prime
surface and re-coat with suitable paint.
Checking and Chalking
- Cracking of plaster.
- Application of matt finish over glossy undercoat finish
- Application of finish coat before drying of the under coat.
- Applying quick hard dry coats over a soft one.
- Undercoat and top coat of paint should have identical physical properties.
- Allow drying time between two coats.
- Make sure paint is not adulterated with foreign materials.
- Remove any unstable paint films.
- Exposed base should be then rubbed down to a smooth face and primed before
- Allow wall to dry thoroughly, and repaint with recommended paint.
- Caused by trapped moisture or gases in paint film (More likely in enamels).
- Follow the specified recoating time interval.
- Top coat application should not result in too thick a film at a time.
- Smooth sand the surface and then repaint it.
- Make sure the wall is completely dry before painting.
Courtesy: UMG ABS., Asian Paints, Nippon Paints