Problems & Solutions
| Problem | Cause | Solution |
| Paint is 'cooking'. Formation of bubbles during application. |
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| Air entrapment due to vigorous mixing. | Let paint rest prior to application. | |
| Substrate is porous. | Use a sealer first, or use more thinner in order to facilitate air release. | |
| Presence of moisture. | Surface must be dry, substrate temperature must be at least 3°C above dewpoint. | |
| Presence of moisture. | Avoid painting in direct sunlight and on midday. Provide shading. | |
| Paint sags, drips. See example |
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| Excessive wet film thickness. | Sand off runs and drips. read usage instructions carefully and apply a new coat correctly. | |
| Excessive use of thinner. | ||
| Applied paint looks like 'Orange skin'. See example |
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| Paint is too thick. | Use correct thinner. Read instructions. |
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| Paint is too cold. | Warm paint up or wait till weather improves. | |
| Wrong spraying technique. | Use correct pressure and apply from the right distance (approx. 0,5 m). | |
| Paint does not dry. | ||
| Climate condition is too cold. | Provide more ventilation. | |
| Wrong thinner. | Wait if drying improves. If not, remove whole paint layer. Read instructions and apply a fresh coat. | |
| Wrong mixing ratio (in case of 2-pack paint). | ||
| Absorption of moisture. | Do not let cans open if not used immediately. | |
| Blistering See example |
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| Surface is damp, humid. | Ensure substrate temperature is at least 3° above dewpoint | |
| Solvent retention due to excessive film thickness or premature recoating. | Sand off blisters to a smooth layer. Apply a fresh layer (including primer if necessary). | |
| Presence of contamination. | ||
| Wrinkling See example |
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| Insufficient drying of undercoat. | When paint is still wet, scrape off layer and clean substrate with thinner. If the plate is already dry, sand to a smooth layer, clean and apply a fresh layer or use the correct product. | |
| Application of 2-pack paint on top of single pack product. | ||
| Excessive film thickness. | ||
| Solvent retention due to painting in direct sunlight. | ||
| Paint peels off See example |
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| Presence of contamination. | Remove loose paint layers, degrease, clean and sand substrate correctly. Apply fresh layer and observe instructions. | |
| Substrate was not sanded. | ||
| Recoating time was exceeded. | ||
| Cracking See example |
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| Application of 2-pack paint on top of single pack product. | Remove whole paint layer, clean substrate and apply corrrect product. | |
| Recoating time was exceeded. | Sand to smooth layer. Apply fresh layer and observe instructions. | |
| Brush marks | ||
| Paint is too thick for brush application. | Sand to smooth layer. Thin paint with correct thinner and apply a fresh layer. | |
| Paint applied too thin. | Use recommended brush. | |
| In case of two-pack product, pot life has been exceeded. | Sand to smooth layer. Apply fresh layer and observe pot life instructions. |
