• 07/28/2025
  • 5min

Which corrosion protection is suitable for my vehicle?

#Car

If you love your car, you protect it – also underneath. Road salt, moisture and dirt clog the underbody. Effective corrosion protection is worthwhile to prevent long-term damage due to rust. But which is the right product? We provide an overview of our protective agents – and their typical areas of use.

Wax-based products – flexible and long-lasting

All-rounder for the underbody

Our Wax Underseal and our Rust Protection Wax are versatile and form an elastic, slightly sticky protective coating that adapts well to unevenness and structures. Their behavior with temperature fluctuations is particularly advantageous: The wax remains supple and does not tear. Ideal for vehicles that are predominantly driven on asphalt roads – even in winter. The wax layer reliably displaces moisture and prevents salt and dirt from acting directly on metal surfaces. These products are also suitable for classic cars or vehicles with an existing protective layer, as they can be applied gently.

Easy sealing of cavities

Our Cavity Protection is a real specialist for interior areas: Door sills, door folds, supporting structures – wherever water can penetrate and rust often forms unnoticed. The wax-based sealant has excellent creep properties, which means that it seeps into even the finest crevices and spreads by itself. The protection remains flexible, penetrates deeply and also protects the structure against corrosion in the long term. Important: Before application, the cavities should be as dry and clean as possible – so that the wax can develop its full effect.

Synthetic-resin and bitumen products – robust against stone chipping and moisture

The classic for underbody protection

Our bitumen-free Wax Underseal offers a solid, opaque protective layer that is well suited for large-scale use on the underbody. Resin-based variants adhere well, are easy to apply and ensure an even application. They offer a good balance of flexibility and resistance, are usually quick-drying and are also overpaintable with most paint systems. Perfectly suited for vehicles in everyday use where reliable rust protection is important without great effort.

Protection in harsher conditions

Our Underseal Bitumen is a good choice when things are particularly tough –for example for off-road vehicles, vans or in winter service. This forms a thicker, viscoplastic layer that is also resistant to stone chipping or heavy spray water. This layer also dampens noise and is particularly durable, but cannot be painted over.

Protection against stone chipping

The wheel arches, the edge of the sill or under the fenders in particular are subject to heavy wear and tear on the paintwork. The use of our Stoneguard can make sense here. It not only protects against rust, but also reduces the effect of small chippings or gravel. Particularly practical: Our product can be painted over – which means it can also be perfectly adapted to the vehicle’s appearance.

For targeted applications and repairs

Paintable underbody protection

If you don’t have a spray can or compressed air system available – or when it comes to spot repairs – our paintable variant is ideal. The product can be applied selectively with a brush or spatula, for example in corners, edges or angled areas. This is particularly advantageous for restorations or for the aftercare of older protective layers, but cannot be painted over. 

Corrosion protection for axle parts and cavities

Our product is a classic in corrosion protection – and not just for commercial vehicles. It forms a protective layer that remains permanently supple and creeps even into fine crevices. This means that the Cable Grease reliably protects against moisture and rust – especially in places that are exposed to heavy stress or weathering, such as axles, leaf springs or cavities. 

Conclusion

Every area of the vehicle has its own requirements - and we have the right products for exactly that. Whether classic underfloor protection, flexible wax or targeted cavity sealing: Good corrosion protection extends the service life of your vehicle and reliably protects it against corrosion and aggressive environmental influences.

In the table below you will find a comparison of the products presented.