COMMON DEFECTS
 
THE USUAL SUSPECTS
(COMMON DEFECTS)
   
     
1). Low Coverage

Offense:
Improper thinning and application. Highly absorbent surface. Rough texture of plaster. Topcoat application directly over putty without application of primer.

The Verdict:
Please read instructions on shade card or product packaging or refer to “Features and Application” section. Follow recommended instructions on application procedures and thinning.
 
     
2). Blistering

Offense:
Trapped moisture or gases in paint film (more likely in enamels).

The Verdict:
Follow the specified recoating time interval. Topcoat application should not result in too thick a film at a time.

The Escape :
Smooth sand the surface and then repaint it.
 
     
3). Poor Adhesion

Offense:
Application of paint over oily, greasy or very smooth surface. Application over loose dust or rust particles. Not sanding previous coat of gloss paint. Application over partially dried coat.

The Verdict:
Ensure proper surface preparation.

The Escape :
Surface should be repainted.
 
     
4). Chalking

Offense:
Fine chalky powder build-up on the surface of paint-film due to pigment release. Improper paint used for exterior paintwork or over-thinning of paint.

The Verdict:
Remove chalking by scrubbing with a suitable cleaning solution and rinse with clean water.

The Escape :
Porous surfaces should be sealed and repainted.
 
     
5. Orange Peel

Offense:
Application of topcoat paint in highly viscous form. Use of improper thinner.

The Verdict:
Sufficient drying time between coats. Use recommended painting system..

The Escape :
Scrape out Orange peel and repaint.
 
     
6. Sags and Runs

Offense:
Application of excessive thick coat. Use of a wrong thinner.

The Verdict:
Apply finish coat using recommended thinner. Do not apply thick coats.

The Escape :
Sand surface to smooth the sagged areas and repaint.
 
     
7. Brush Marks

Offense:
Application of top coat paint in highly viscous form. Highly viscous paint. Careless application.

The Verdict:
Use proper brushes and thin paint to desired proportion.

The Escape :
Sand surface to a smooth finish and apply paint (after thinning to desired proportion). Use good quality brushes.
 
     
8). Cracking

Offense:
Cracking of plaster. Application of matt finish over glossy undercoat finish. Application of finish coat before drying of the undercoat. Applying quick hard dry coats over a soft one.

The Verdict:
Undercoat and topcoat of paint should have identical physical properties. Allow drying time between two coats.

The Escape :
Entire coat must be completely removed. Exposed base should be then rubbed down to a smooth face and primed before repainting.
 
     
9). Yellowing

Offense:
Paint Film is deprived of natural sunlight. (Especially in case of Enamels). Paint film subjected to too much sunlight.

The Verdict:
Use paints like Royale, Premium Emulsion Improved daylight and ventilation for inside work.

The Escape :
Surface should be cleaned and repainted. Use recommended system.
 
     
10). Microbial growth

Offense:
Painting over a surface affected with microbial growth. Seepage or dampness in buildings. Contamination of paint by materials used in putty preparation.

The Verdict:
Before painting, area should be cleaned with 5-10 % bleach solution. Use clear water for thinning and putty preparation. Keep doors and windows open during and after painting.

The Escape :
Clean with bleach solution and repaint.
 
     
11). Patchiness

Offense:
Application of finish coat over spot puttied surfaces. High alkalinity of surface (evident in new walls). Incomplete drying of putty. Application of thick coat of putty.

The Verdict:
Allow new walls to get cured for at least three months. Apply thin coats of putty. Always apply a primer coat after applying spot putty. Always sandwich coats of putty with primer. Cracks in plaster should be filled with cement sand mixture.

The Escape :
Scrape the surface and repaint adopting the right surface preparation.