Cracking

Cause

•   Excessive film thickness of the undercoat and/or topcoat.

•   Refinishing over a previously crazed/cracked surface.

•   Insufficient flash time between coats and/or force drying undercoats using air from the spray gun.

•   Mixing incorrectly or using too much hardener.

•   Paint ingredients not thoroughly stirred or agitated.

•   Breakdown of finish due to prolonged exposure to sunlight, moisture, and extreme temperature changes

•   Using generic reducers and/or hardeners.

Repair

• Remove all cracked paint film and refinish.

Prevention

•   Apply all materials following label direction.

•   Completely remove crazed/cracked finishes before refinishing.

•   Do not force dry undercoats by fanning with spray gun air.

•   Mix ingredients thoroughly using the recommended additives. Add each component in proper sequence following the recommended mixing         ratio.

•   Stir or agitate materials thoroughly before use to ensure all ingredients are in solution.

•   Use premium two component undercoat and topcoat system to provide maximum gloss and durability.

•   Use the recommended thinner/reducer and hardener, and then measure accurately.