Common Defects

Diagnose your painting woes with our detailed list of common defects, their causes and simple prevention measures.
Here are a few ideas to plan and have your painting job done in a more organised way:

Low Coverage
Causes :

  • Improper thinning and application.
  • Highly absorbent surface.
  • Rough texture of plaster.
  • Top coat application directly over putty without application of primer.

Prevention :

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

  • Caused by trapped moisture or gases in paint film (more likely in enamels).

Prevention :

  • Follow the specified recoating time interval.
  • Top coat application should not result in too thick a film at a time.

Remedy :

  • Smooth sand the surface and then repaint it.
Poor Adhesion
Causes

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

Prevention :

  • Ensure proper surface preparation.

Remedy :

  • Surface should be repainted.
Chalking
Causes

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

Prevention :

  • Ensure proper surface preparation.

Remedy :

  • Surface should be repainted.
Orange Peel
Causes

  • Application of top coat paint in highly viscous form.
  • Use of improper thinner.

Prevention :

  • Sufficient drying time between coats.
  • Use recommended painting system.

Remedy :

  • Scrape out orange peel and repaint.
Sags and Runs
Causes

  • Application of top coat paint in highly viscous form.
  • Use of improper thinner.

Prevention :

  • Apply finish coat using recommended thinner.
  • Do not apply thick coats.

Remedy :

  • Sand surface to smoothen the sagged areas and repaint.
Brush Marks
Causes

  • Applying paint using poor quality brushes.
  • Highly viscous paint.
  • Careless application.

Prevention :

  • Use proper brushes and thin paint to desired proportion.

Remedy :

  • Sand surface to a smooth finish and apply paint (after thinning to desired proportion).
  • Use good quality brushes.
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