Definition
Unwanted material on or under the film. Surface deposits such as insects differ from particles trapped during fitting.
Why it matters
Surface dirt may be cleaned with approved methods; embedded contamination needs the installer’s assessment. Do not puncture the film or escalate to strong chemicals without identifying the problem. Prompt attention to surface deposits reduces avoidable exposure.
Apply the concept
Washing and caring for a PPF car
A practical care routine for washing, contamination, winter use and compatible surface treatments.