Cause:

• Use of incompatible materials. Solvents in new topcoat attack old surface which results in a distorted or wrinkled effect.
• Improper drying time. When synthetic enamel type undercoats are not thoroughly dry, and surfaces top coated with lacquer.
• Effect of old finish or previous repair.
• Improper surface preaparation.
• Wrong thinner or diluter.
• Application of coats too heavily.
• Excessive film build.

Prevention

• Avoid incompatible materials such as a thinner with enamel products, or imcompatible sealers and primers.
• Allow sufficient flash and dry time.
• Select the correct thinner and diluter specified on the Technical Data Sheet.
• Solvent test and remove solvent-sensitive substrates.
• Avoid excessive film thickness.