Triangle Paints
Color Consultancy:
0092 331 5551992

Common Defects

Diagnose your painting problems 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 organized 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 excessively thick coat.

  • Use of a wrong 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.

Checking and Chalking

Causes :

  • 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.

Prevention:

  • Undercoat and top coat of paint should have identical physical properties.

  • Allow drying time between two coats.

Remedy:

  • Entire coat must be completely removed.

  • Exposed base should be then rubbed down to a smooth face and primed before repainting.

 

Yellowing

Causes :

  • Paint film is deprived of natural sunlight (especially in case of enamels).

  • Paint film subjected to too much sunlight.

Prevention:

  • Use paints like Royale, Premium Emulsion.

  • Improved daylight and ventilation for inside work.

Remedy:

  • Surface should be cleaned and repainted.

  • Use recommended system.

Microbial Growth

Causes:

  • Painting over a surface affected with microbial growth.

  • Seepage or dampness in buildings.

  • Contamination of paint by materials used in putty preparation.

Prevention:

  • 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.

Remedy:

  • Clean with bleach solution and repaint.

Patchiness

Causes:

  • 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.

Prevention:

  • 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.

Remedy:

  • Scrape the surface and repaint adopting the right surface preparation.

Contact Us

Address: P-1103, Asghar Mall Road, Rawalpindi
Land Line: 0092 51 44201992, 4845800
Cell: 0092 331 5551992
Working Days: Full Week Except Friday
Timing: 09:00 AM to 09:00 PM