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Possible Causes
- Too much thinning of paint than desired
- Previous paint-coating very dark and topcoat applied without primer-putty primer
- Recommended number of coats of paint not applied
Possible Causes
- Less thinning than recommended
- Surface being painted is rough or not prepared as recommended
- Applied more coats than needed
- Poor quality of application tools
Possible Causes
- Dust or dirt in the atmosphere settling on the surface during or after application.
- During surface preparation, the surface is not cleaned properly after sanding. Therefore loose particles may get mixed with the paint while application.
- Use of a dirty application tool.
Possible Causes
- Painting in cold and damp condition, that causes condensation on the newly painted surface.
- Use of incorrect solvent, contaminated solvent or solvent with traces of water
- Application of paint in a poorly ventilated room
- Lack of adherence to manufacturers recommendation for necessary gap between subsequent coats
Possible Causes
- Application of too thick paint coating at a time
- Over dilution of paint
- Application of paint on a very smooth surface( without sanding)
Possible Causes
- Too thick application
- High humidity and/or low temperature during paint application
- Improper ventilation, Application being done in confined area
- Use of contaminated/ improper thinner and not the recommended thinner
- Lack of adherence to recommended dilution ratio
- Recommended system usage not adhered to. For instance, not adding adequate hardener in a two pack system like Melamine, PU.
Possible Causes
- Paint not thoroughly mixed prior to application
- Application of very thin or thick coat over the surface
- Use of light top coats over very deep undercoats.
- Use of colored or dirty thinner for thinning paint sample
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