Frequently Asked Questions

What is vehicle rustproofing?

Vehicle rustproofing is the process of applying protective coatings to vulnerable areas of a vehicle to help prevent rust and corrosion. Common treatments include underbody coatings, cavity waxes and rust inhibitors designed to protect steel surfaces from moisture, salt, mud and other corrosive contaminants.

Does rustproofing work?

Yes. Quality rustproofing products can significantly reduce the risk of corrosion by creating a protective barrier between the vehicle and the environment. No rustproofing system can make a vehicle completely rust-proof forever, but it can greatly slow the corrosion process and help extend the life of the vehicle.

Do new vehicles need rustproofing?

Many new vehicles leave the factory with some level of corrosion protection, however the level of protection varies considerably between manufacturers. Additional rustproofing may be beneficial for vehicles regularly exposed to coastal environments, off-road conditions, mining operations, mud, water crossings or beach driving.

What is the best rust protection for a 4WD?

For most Australian 4WDs, a combination of heavy-duty underbody protection and cavity wax treatment provides the highest level of protection. Vehicles used on beaches, tracks and remote areas are often exposed to mud, water and salt that can accelerate corrosion.

Is rustproofing worth it in Australia?

For many Australian vehicle owners the answer is yes. Coastal air, beach driving, mining environments, agricultural use and regular exposure to moisture can all contribute to corrosion. Rustproofing can help protect vulnerable components and reduce long-term deterioration.

Can an older vehicle be rustproofed?

Yes. Many older vehicles can benefit from rustproofing. Existing rust should be assessed and treated where necessary before protective coatings are applied. The earlier corrosion is addressed, the better the long-term outcome.

Can rustproofing stop existing rust?

Rustproofing is primarily designed to help prevent future corrosion. Existing rust may require cleaning, treatment or repair before protective coatings are applied. The appropriate treatment depends on the severity of the corrosion.

How long does rustproofing last?

The lifespan of a rustproofing treatment depends on the products used, vehicle usage and operating environment. Quality professional systems can provide long-term protection, although periodic inspections and maintenance may be recommended.

Will rustproofing affect my vehicle warranty?

In most cases professional rustproofing does not affect a vehicle manufacturer’s warranty. If you have concerns about a specific vehicle, we recommend reviewing your warranty documentation or discussing it with your dealer.

Can rustproofing be applied to any vehicle?

Rustproofing can be applied to most passenger vehicles, 4WDs, SUVs, commercial vehicles, trailers, caravans and many types of machinery and equipment.

What areas of a vehicle are typically rustproofed?

Common treatment areas include chassis rails, floor pans, wheel arches, suspension components, crossmembers, underbody panels and internal cavities where moisture can accumulate.

What is cavity wax?

Cavity wax is a specialised corrosion inhibitor designed to protect enclosed sections of a vehicle such as chassis rails, doors, pillars and body cavities. These areas are often difficult to inspect and can be prone to hidden corrosion.

What is underbody rust protection?

Underbody rust protection involves applying protective coatings to exposed metal surfaces underneath the vehicle. These coatings help shield the vehicle from moisture, salt, stone impact and environmental contaminants.

Is rustproofing suitable for beach driving?

Yes. Vehicles used on beaches are exposed to salt, sand and moisture, which can accelerate corrosion. Rustproofing is commonly recommended for vehicles regularly used in coastal environments.

Can caravans and trailers be rustproofed?

Yes. Rustproofing can be applied to caravans, camper trailers, boat trailers, horse floats and utility trailers to help protect steel components from corrosion.

Does rustproofing reduce road noise?

Some underbody coatings may provide a small reduction in road noise, however the primary purpose of rustproofing is corrosion protection rather than sound deadening.

What is the difference between rustproofing and electronic rust protection?

Traditional rustproofing uses physical coatings and corrosion inhibitors to protect metal surfaces. Electronic rust protection systems use electrical technology intended to help reduce corrosion. Many vehicle owners choose to use both systems together.

Can rustproofing be applied after a vehicle has been modified?

Yes. Rustproofing can generally be applied before or after modifications such as bull bars, suspension upgrades, canopies, drawers and accessories.

How much does vehicle rustproofing cost?

The cost varies depending on the vehicle type, size, condition and level of protection required. Factors such as existing corrosion, additional preparation and optional treatments can also affect pricing.

Where can I find an Endrust Certified Applicator?

Endrust Certified Applicators operate throughout Australia. Visit our Locations page to find your nearest applicator and request a quote.