PPF Wiki
Surface & optics

Hydrophobic surface

Definition, practical relevance and related concepts.

Definition

A surface that resists wetting by water, often visible as water beads. This describes an interaction at the surface rather than the film’s ability to resist an impact.

Why it matters

Beading can change with contamination and care. It does not mean the film stays clean without washing or that deposits cannot stain it. Use the approved maintenance products and distinguish built-in surface behaviour from an added coating.

Apply the concept

Washing and caring for a PPF car

A practical care routine for washing, contamination, winter use and compatible surface treatments.

Read the PPF overview