Definition
A gel-form installation aid used in some approved film-fitting systems. It is an alternative process aid, not a universal ingredient required for all PPF.
Why it matters
Use only an appropriate product with an approved application method. Switching between gel and liquid without checking the film’s instructions can change positioning, residue handling and adhesion behaviour.
Apply the concept
Choosing an installer and understanding the work
Practical questions about preparation, cutting, edges and handover, plus realistic limits for DIY kits.