One side of the steel sample was left unpainted while the other was sprayed with a single coat of primer and acrylic top coat, replicating a typical DIY repair. Once dry, the samples were then doused daily in salty water for four weeks to encourage any corrosion to reappear. We then scored them on ease of use, rust-resisting performance and price. Verdict It is a complex, patented tannic acid, water based non toxic product. It offers exceptional protection against rust despite being environmentally friendly. Isocyanates and high volatiles are not necessary so it doesn’t contain them. FERTAN Wax Cavity Protection has been developed for the preservation of wax-based car cavities.After application, the product forms a transparent layer which is only dry on the surface and provides excellent and long-lasting protection against rust and corrosion. Incidentally, phosphoric acid is the stuff in coco cola which makes pennies shiney. And we drink that stuff!

We left sections of 1mm unpainted mild steel to gently corrode outside over the course of several months, then let them thoroughly dry before treating both sides with our products, carefully following the instructions. For the post-treatment of cavities, rust should always be removed first with the product FERTAN Rust Converter to remove existing corrosion. Finally, protect permanently with FERTAN Cavity Protection Wax. When application is performed in direct sunlight or hot conditions damp the surface after 1-2 hours. The process is fast and efficient, with a single coating of the converter all that is needed to remove the rust. This is much easier compared to sanding or blasting the rust away, which is labour intensive and time-consuming, making rust converter a fantastic investment for most rust-related problems.

Classic Car Enthusiast

The purpose of Fertan Rust Converter is to provide you with all the benefits of shot blasting with no surface damage and no material loss. As there is no blasting the process is nuisance free and silent. You are able to observe and be sure that all the rust has been converted before applying opaque paint coats.

A rust converter is a liquid used to remove the rust that has accumulated on various objects. The liquid is applied to the sulfurase of a rusted object, which then converts rust from iron oxide to ferric phosphate.RECOMMENDED FOR : Long-term, protective rust treatment for maintenance interventions on previously painted, oxidized metal parts. Part# Paint the treated surface with etch primer or epoxy coating within at least six months to prevent further corrosion. Shake well before use. Insert FERTAN cavity protection wax into the cavities using a cavity gun with 360° nozzle. Use the holes drilled by the vehicle manufacturer or drill new holes if necessary. Apply wax to the edges of the holes as well. There are numerous types of these potions on the market, and they all claim to be the best, so we tested a selection of products to see which you should trust to sort your rust. How we tested them