Downward “drooping” movement of the paint film immediately after application, resulting in an uneven coating.
- Application of a heavy coat of paint.
- Application in excessively humid and/or cool conditions.
- Application of overthinned paint.
- Airless spraying with the gun too close to the substrate being painted.
- If the paint is still wet, immediately brush out or re-roll to redistribute the excess evenly.
- If the paint has dried, sand, and reapply a new coat of top quality paint.
- Correct any unfavorable conditions: Do not thin the paint; avoid cool or humid conditions; sand glossy surfaces.
- Paint should be applied at its recommended spread rate; avoid “heaping on” the paint.
- Two coats of paint at the recommended spread rate are better than one heavy coat, which can also lead to sagging.
- Consider removing doors to paint them supported horizontally.
Note: Images & information provided by The Rohm & Hass Paint Quality Institute.