Wrinkling

Cause

•   Excessive film thickness or "piling on" of heavy wet coats.

•   Placing a newly painted finish in hot sun too soon after spraying.

•   Using lacquer thinner to reduce synthetic enamel.

•   Spraying in extreme hot, humid weather conditions.

•   Under reduced and/or too fast evaporating thinner/reducer for spray conditions.

•   Air pressure too low during spray application.

•   Force drying of air-dry enamels without the recommended additives.

Repair

•   If defects are minor; Sand the top surface smooth, allow to cure and refinish.

•   If defects are severe; Remove the affected area and refinish.

Prevention

•   Avoid excessive film thickness and heavy coats. Always allow for sufficient flash times.

•   Keep newly painted finish away from direct sunlight until finish has dried/cured.

•   Use reducer that is specifically recommended for the topcoat.

•   Use the recommended reducer, additive, and/or retarder when spraying in hot humid weather.

•   Select recommend thinner/reducer based on temperature, humidity, air movement, and size of repair.

•   Use the proper reduction ratio and spray at recommended air pressure.

•   Select the recommended additives to suit drying conditions. Follow force dry temperatures and time recommendations.