Lifting / wrinkling

Lifting / wrinkling.

Definition

• Lifting / wrinkling of the paint surface.

Cause

• Substrate solvent-sensitive or not fully cured.
• Areas where clear coat was sanded through to base coat either not isolated or isolated with an unsuitable surfacer.
• Unsuitable substrate (e.g. aerosol-can finish with TPA or nitrocellulose paints).
• Unsuitable priming materials, top coats or reducers.

Prevention

• Carry out a solvent test on problem substrates.
• Apply several thin coats of a 2K surfacer to problem substrates and allow longer flash-off.

Remedy

• Completely remove the fully dried area of wrinkled top coat together with the affected substrate and apply the paint system again.
• Before applying the top coat, lightly sand the entire area.