We have identified some common paint problems for you as well as ways in which to combat them.
Paint Troubleshooting: Identify the Problem and Find the Solution Are the brush marks on your wall driving you mad or do you want to scream every time you see blistering on your walls?
Don't fear. Simply browse through the common problems listed in this paint troubleshooting section and we'll show you the cause as well as the solution.
- Low Coverage
- Blistering
- Poor Adhesion
- Chalking
- Orange Peel
- Sags and Runs
- Brush Marks
- Checking and Chalking
- Microbial Growth
- Patchiness
Low Coverage
Causes:- Improper thinning and application.
- Highly absorbent surface.
- Rough texture of plaster.
- Top coat application directly over putty without application of primer.
- Please read instructions on the product packaging and ensure correct preparation of the surface.
Blistering
Causes:- 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.
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.
- Ensure proper surface preparation.
- 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.
- Ensure proper surface preparation.
- Surface should be repainted.
Orange Peel
Causes:- Application of top coat paint in highly viscous form.
- Use of improper thinner.
- Ensure sufficient drying time between coats.
- Use recommended painting system.
- Scrape out orange peel and repaint.
Sags and Runs
Causes:- Application of excessively thick coat.
- Use of a wrong thinner.
- Apply finish coat using recommended thinner.
- Do not apply thick coats.
- Sand surface to smoothen the sagged areas and repaint.
Brush Marks
Causes:- Applying paint using poor quality brushes.
- Highly viscous paint.
- Careless application.
- Use proper brushes and thin paint to desired proportion.
- Use quality brushes.
- Sand surface to a smooth finish and apply paint (after thinning to the desired proportion).
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.
- Undercoat and top coat of paint should have identical physical properties.
- Allow drying time between two coats.
- Entire coat must be completely removed.
- Exposed base should be then rubbed down to a smooth face and primed before repainting.
Microbial Growth
Causes:- Painting over a surface affected with microbial growth.
- Water seepage or damp in walls.
- Contamination of paint by materials used in putty preparation.
- Before painting, area should be checked for damp and the problem should be rectified appropriately. We recommend getting a contractor to survey the extent of the problem.
- Use clear water for thinning and putty preparation.
- Keep doors and windows open during and after painting.
- 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 walls.
- Allow new walls to get cured for at least three months.
- Always apply a primer coat after applying spot putty.
- Cracks in plaster should be filled with Medal crack filler.
- Scrape the surface and repaint adopting the right surface preparation.
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