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Sagging:
Downward "drooping" movement of the paint film
immediately after application, resulting in an uneven
coating.
Possible Causes:
Application of a heavy coat of paint.
Application in excessively humid and/or cool conditions.
Application of over thinned paint.
Airless spraying with the gun too close to the substrate
being painted.
Solution:
If paint is still wet, immediately brush our or reroll 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 over heavy coat,
which can also lead to sagging. Consider removing doors to
paint them supported horizontally. |
