The Importance of Protecting Inner Cavities No collision repair shop can replicate an OEM corrosion protection process (zinc phosphate baths, degreasers, DI water, heat-cured primers and sealers etc.). Also, the repair process itself – grinding, welding, heating or removal of protective coatings – can easily compromise OEM e-coats and create chances for corrosion.
When inner pockets and spaces of a vehicle go unprotected during collision repair, rust and other corrosion can develop and grow unnoticed. Inner cavities are also more likely to trap moisture that can encourage the development of corrosion, which can spread and cause serious damage to the vehicle and possibly the shop’s reputation. With passenger vehicles increasingly staying on the road longer and heavy duty trucks often exceeding 1 million miles, it’s especially important to incorporate effective corrosion protection into your repair process.
3M recommends applying three coats of 3M Cavity Wax Plus for adequate internal corrosion protection. In fact, all OEMs recommend the application of internal anti-corrosion material during body repair, which includes cavity wax.
How 3M Cavity Wax Plus Helps Protect Against Corrosion 3M Cavity Wax Plus 08852 (sold separately from the wand kit) is a self-healing, corrosion protection spray for inner body panels, frame rails and structural enclosures in automotive bodies. We formulated this product to flow, wick and provide uniform protection to repairs. Our product can access inner body structures with tight tolerances and eliminates the need to use messy bulk sprays. Our cavity wax may be used on all substrates for advanced protection and meets OEM standards for vehicle repair.
The Science of Collision Repair Coatings from 3M 3M is constantly developing new ways to apply science to the lives of professionals in a range of industries including collision repair. Our 3M Cavity Wax Plus 08852 and 3M Cavity Wax Plus Applicator Wand Kit 08851 are great examples – our decades of knowledge in adhesives, coatings and protectants in easy-to-use spray components. The result: products that help you quickly and efficiently meet the recommendations of collision repair industry organizations and critical OEM specifications for corrosion protection in vehicle repair.
