Loss of Gloss
- Topcoat applied in heavy, wet coats.
- Inadequate flash time between coats.
- Insufficient film thickness of topcoat color or clearcoat.
- Insufficient drying/curling of undercoats before applying topcoats.
- Using a poor grade and/or too fast evaporating thinner/reducer for spray conditions.
- Improper cleaning of the substrate.
- Insufficient air movement during and after application.
- Spraying over a deteriorated or solvent sensitive substrate finish without proper priming or sealing procedures.
- Natural weathering of the finish.
- Allow finish to cure thoroughly, compound or polish to restore gloss or sand and refinish.
- Apply the topcoat according to product label directions using the recommended gun set-up and air pressure.
- Allow all coatings sufficient flash between coats.
- Apply sufficient number of coats to achieve recommended proper film thickness. Check with film thickness gauge if possible.
- Allow undercoats to thoroughly dry/cure before topcoating.
- Select recommended thinner/reducer based on temperature, humidity, air movement, and size of repair.
- Clean substrate thoroughly before and after sanding.
- For maximum holdout, use a premium two component undercoat system.
- Properly wash and care for the finish on a regular basis.
- Using premium topcoat color or clearcoat system will provide maximum gloss and durability.
For air dry situations:
- allow exhaust fan to run 40 minutes or longer after spraying;
- open booth doors after finish is dust free; and
- maintain a shop temperature of 60 degrees fahrenheit or above, especially when drying overnight.