SONAX Rubber care crayon
Prevents the rubber seals on doors, convertible roofs, windows and boot lids from sticking during winter. Maintains the rubber, keeps it supple and protects against brittleness.
Additional product information:
When you have a winter windscreen cleaner in the tank and a windscreen de-icer ready to hand, then you actually have the winter under control. Almost: For we continually receive queries asking how to prevent the doors from freezing shut.