Hello! Would like to provide preventive underbody protection for my Twingo. So far it has hardly got rust and that should stay that way. Now I wonder how I can afford (*financially limited student*) for underbody protection. In the trade I find, for example, “pastes”, which are applied similar to wax or silicone, seals or zinc spray. All price very attractive. Does this bring what? What does the durability look like considering the normal stress (feuch As long as I don’t have to renew it monthly, I could still live with it. What is better in case of doubt? Such a sealant or zinc spray? Or are there better (favourable) preventive measures? LG