Sunox "TRADE" Cavity Wax effectively protects vehicle bodywork cavities particularly susceptible to rust such as doors, side panels, boot lids, bonnets etc. Rust can be prevented if applied regularly with a thin coat being enough to protect metal. 

The sealer has excellent water repellent and penetration properties. Once applied, a light sticky film appears with self-regenerating properties that can also be used to protect the engine compartment. In addition the typical smell associated with conventional waxes, once the coat has been heated by the sun or the engine, is not present.

Features.
Effective corrosion protection
Excellent water repellent 
Self generating film
Long lasting results