1. Dusty environment
Work in a closed, clean space.
2. Poor preparation
Wash, clay, IPA wipe-down first.
3. Cutting incorrectly
Use protective tape or plotter cuts.
4. Wrong amount of fluid
Too little: sticks immediately. Too much: bubbles.
5. Poor edge finishing
Heat gun at complex curves.
6. Delivering too quickly
PPF needs 48-72 hours to adhere.