Services

Rustproofing & Underbody Protection

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Kimberley Auto Care is the only workshop in the region authorised to apply Endrust Australia protective coatings, delivering the highest standard of underbody corrosion protection for vehicles operating in Kimberley conditions.

Our rustproofing service is engineered for long-term durability, protecting critical undercarriage components from salt, moisture, red dirt and harsh environmental exposure.

Exclusive Endrust Australia System

Professional Rustproofing Solutions for Long-Term Vehicle Protection

Rustproofing is one of the most important steps in protecting your vehicle, particularly in harsh environments where moisture, salt air, red dirt, mud, and road contaminants are part of everyday driving. The underbody and structural components of a vehicle are constantly exposed to conditions that can accelerate corrosion and lead to costly repairs if left unprotected.

Whether your vehicle is brand new or already in service, proper rust protection helps maintain structural integrity, reliability, and long-term value. For vehicles operating in coastal, off-road, or heavy-use environments, rust prevention is not optional, it is essential.

At Kimberley Auto Care, we use proven Endrust corrosion protection systems and professional application methods designed to withstand demanding Australian conditions. Every vehicle is carefully prepared and treated using industry-grade coatings and equipment to ensure consistent coverage and long-lasting protection.

Our rustproofing packages are structured to suit different vehicle types, usage conditions, and protection requirements — from everyday passenger vehicles to heavy-duty work and mining vehicles. Each package builds on the next, allowing customers to select the level of protection that best matches how their vehicle is used.

Investing in rust protection today helps prevent corrosion tomorrow, protecting your vehicle, your safety, and your long-term ownership costs.

1. Standard Rustproofing Package

Best Suited For

  • Daily drivers
  • Work vehicles
  • Customers wanting reliable, cost-effective rust protection
  • Vehicles operating in general road and weather conditions

Reliable Protection for Everyday Driving

This package is designed to provide dependable underbody protection against rust, corrosion, and harsh road conditions. Ideal for daily drivers, work vehicles, and customers wanting a solid baseline level of protection.

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Surface Preparation
  • Thorough underbody wash to remove dirt, mud, and contaminants
  • Full masking of vehicle body and sensitive suspension components
  • Removal of bash plates where required
  • Removal of all wheels, including spare wheel (if mounted underneath)
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Rust Treatment & Surface Sealing
  • Surface inspection and preparation
  • Application of Endrust Rust Converter or high-quality primer (depending on surface condition)
  • Ensures proper sealing and adhesion before coating
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Protective Coating Application

Application of Endrust Bitumen-Based Coating, a heavy-duty, thixotropic anticorrosive sealant designed for long-lasting underbody protection.

 

Areas Typically Treated

  • Complete underbody and chassis
  • Lower cavities of front and rear guards
  • Wheel arches
  • Fuel, air, and hydraulic tanks
  • Transfer casing, driveline, axles, and differentials
  • Mounting points for tow bars, bull bars, and side steps
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Turnaround Time

Approximately 24 hours

2. Complete Underbody Package

Best Suited For

  • 4WDs and SUVs used for touring, camping, and off-road travel
  • Vehicles regularly driven on gravel, dirt, or unsealed roads
  • Utes and dual-cabs used for work and recreation
  • Owners wanting both external and internal chassis protection
  • Vehicles exposed to mud, water crossings, and red dirt conditions

Full Protection for Constant Driving

This package is designed to provide dependable underbody protection against rust, corrosion, and harsh road conditions. It delivers a solid baseline level of rust prevention using proven Endrust coating systems, making it an ideal solution for customers wanting effective, cost-efficient protection without compromising on quality.

Perfect for daily drivers and work vehicles, the Standard Package covers all critical underbody areas to help extend vehicle life and maintain long-term reliability.

What’s Included

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Surface Preparation
  • Thorough underbody wash to remove dirt, mud, and contaminants
  • Full masking of vehicle body and sensitive suspension components
  • Removal of bash plates where required
  • Removal of all wheels, including spare wheel (if mounted underneath)
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Underbody Protective Coating Application

A durable protective coating is applied to the vehicle’s underbody using either a bitumen-based or resin-based system, depending on the vehicle’s usage and customer preference.

 

  • Bitumen-Based Coating — a heavy-duty coating designed to withstand gravel, stone chips, and harsh off-road conditions.
  • Resin-Based Coating - a cleaner, professional finish that provides excellent corrosion protection while allowing easier inspection and maintenance.

 

Both coating types are designed to protect against moisture, salt, and environmental exposure common in Kimberley conditions.

 

Areas Typically Treated

  • Complete underbody and chassis
  • Lower cavities of front and rear guards
  • Wheel arches
  • Fuel, air, and hydraulic tanks
  • Transfer casing, driveline, axles, and differentials
  • Mounting points for tow bars, bull bars, and side steps
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Internal Cavity Wax Treatment - Fogging Application

In addition to external protection, internal structural sections of the vehicle are treated using a specialised cavity wax application process.

“Cavity Wax” is purpose-designed to flow and coat inside enclosed sections, forming a protective barrier that prevents moisture from settling on internal metal surfaces. Using a fogging-style application method, the product is dispersed deep into structural areas where rust commonly begins but cannot be seen.

 

Areas Typically Treated

  • Inside chassis rails
  • Cross-members
  • Internal box sections
  • Structural cavities prone to moisture and salt build-up

 

This internal treatment significantly increases long-term corrosion resistance by protecting the vehicle from the inside out.

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Turnaround Time

Approximately 24 hours

3. Upperbody Rustproofing Package

Best Suited For

  • Vehicles already treated with underbody protection needing upper-body coverage
  • Coastal and humid-region vehicles exposed to salt air
  • Late-model vehicles with complex engine bays and electronics
  • Owners wanting to protect resale value and visible engine bay condition
  • Customers seeking targeted protection for hidden cavities and structural seams

Targeted Protection for Engine Bay and Upper Vehicle Structures

This package is designed to protect the upper sections of the vehicle where corrosion often begins due to moisture, salt air, and environmental exposure. It focuses on internal cavities, structural seams, and the engine bay, providing an additional layer of protection to areas that are frequently overlooked but critical to long-term vehicle reliability.

This package can be performed as a standalone service or combined with an underbody rustproofing package for complete vehicle protection.

What’s Included

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Cavity and Box Section Protection

All accessible upper body cavities and enclosed structural sections are treated using a specialised cavity wax application process. The product is designed to flow and spread inside enclosed sections, forming a protective barrier that prevents moisture and corrosion from developing inside the structure of the vehicle.

Using professional fogging equipment, the cavity wax is applied to ensure deep penetration and even coverage throughout critical structural areas.

 

Areas Typically Treated

  • Upper body cavities
  • Box sections and structural voids
  • Body seams and internal structural joins
  • Hidden moisture-prone sections
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Engine Bay Rustproofing - Resin-Based Coating

A high-quality resin-based corrosion protection coating is applied throughout the engine bay to protect exposed metal surfaces from rust and environmental damage. The resin system provides a clean, professional finish while maintaining serviceability and visibility of components.

This coating is specifically selected for engine bay environments where heat, moisture, and contamination can accelerate corrosion.

 

Areas Typically Treated

  • Painted metal surfaces within the engine bay
  • Nuts, bolts, and mounting fixings
  • Upper radiator supports
  • Behind headlights and grille assemblies
  • Seams and structural joints
  • Around and beneath the battery area
  • Other exposed metal surfaces prone to corrosion

 

Particular attention is given to seams, joints, and connection points where moisture can accumulate and corrosion commonly begins.

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Electronic Rust Protection System - CAT System Installation

A CAT Electronic Rust Protection System is installed to provide ongoing corrosion protection to painted metal surfaces throughout the vehicle. The system works by delivering a controlled electrical current designed to help reduce the corrosion process on exposed metal surfaces.

 

System Features

  • Continuous electronic corrosion protection
  • Designed for long-term vehicle protection
  • Safe for vehicle electronics
  • Suitable for passenger and 4WD vehicles
  • Available in multiple pad configurations depending on vehicle size and protection requirements

 

This system provides an additional layer of preventative protection, particularly beneficial for vehicles operating in coastal, humid, or high-exposure environments such as the Kimberley region.

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Turnaround Time

Typically 24 hours

4. Full Vehicle Rustproofing Package

Peace of Mind for Total Vehicle Protection

Best Suited For

  • New vehicle owners wanting complete protection from day one
  • 4WDs, utes, and touring vehicles used across varied terrain
  • Vehicles operating in coastal, tropical, or high-humidity regions
  • Owners planning long-term vehicle ownership
  • Customers wanting maximum peace of mind with total inside-out protection
  • Fleet and family vehicles where reliability and longevity are priorities

Complete Protection - Inside, Outside, and Above

This package combines the Complete Underbody Package and the Upperbody Rustproofing Package to deliver full-vehicle corrosion protection. It is designed for customers who want maximum protection for their vehicle against rust, moisture, salt, and harsh environmental conditions.

By treating both the underside and upper structural areas of the vehicle, this package provides comprehensive coverage from the inside out - helping extend vehicle life, maintain structural integrity, and protect long-term value. This is the ideal solution for anyone looking for complete peace of mind when protecting their vehicle

What’s Included

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Complete Underbody Protection

Thorough Underbody Preparation
The vehicle undergoes a complete underbody wash to remove dirt, mud, sand, salt, and contaminants. Proper preparation ensures strong adhesion and long-term coating performance.

 

Vehicle Masking and Disassembly
All necessary areas of the vehicle are carefully masked to protect sensitive components and maintain a clean, professional finish. Bash plates are removed where required, and all wheels are removed, including the spare wheel if mounted underneath the vehicle. This allows full access to hidden and high-risk areas.

 

Surface Treatment and Sealing
The underbody and exposed metal surfaces are inspected and prepared. Depending on the condition of the surface, either Endrust Rust Converter or a high-quality automotive primer is applied to stabilise and seal the metal before protective coatings are installed.

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Protective Coating Application

A durable protective coating is applied to the entire underbody using either:

 

  • Bitumen-Based Coating — heavy-duty protection designed for gravel roads, off-road use, and harsh terrain
  • Resin-Based Coating — cleaner finish allowing easier inspection and maintenance while still providing excellent corrosion protection

 

Areas Typically Treated

  • Complete underbody and chassis
  • Lower cavities of front and rear guards
  • Wheel arches
  • Fuel, air, and hydraulic tanks
  • Transfer casing, driveline, axles, and differentials
  • Mounting points for tow bars, bull bars, and side steps
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Internal Cavity Protection — Chassis and Structural Sections

Cavity Wax Treatment - Fogging Application

A specialised cavity wax is applied using professional fogging equipment to coat internal structural sections where corrosion commonly begins. The product flows and spreads inside enclosed areas, forming a protective barrier against moisture and rust.

Areas Typically Treated

  • Inside chassis rails
  • Cross-members
  • Internal box sections
  • Structural cavities prone to moisture and salt build-up
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Upperbody and Engine Bay Protection

Engine Bay Rustproofing - Resin-Based Coating

A high-quality resin-based coating is applied to exposed metal surfaces in the engine bay to protect against corrosion caused by heat, moisture, and environmental exposure.

 

Areas Typically Treated

  • Painted metal surfaces within the engine bay
  • Nuts, bolts, and mounting fixings
  • Upper radiator supports
  • Behind headlights and grille
  • Seams and structural joints
  • Around and beneath the battery
  • Other exposed metal surfaces prone to corrosion

 

Particular attention is given to seams, joints, and connection points where corrosion commonly starts.

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Electronic Rust Protection - CAT System

A CAT Electronic Rust Protection System is installed to provide continuous corrosion protection to painted metal surfaces throughout the vehicle. The system delivers ongoing protection and is especially beneficial for vehicles operating in coastal, humid, or high-exposure environments.

 

System Features

  • Continuous electronic corrosion protection
  • Safe for vehicle electronics
  • Long-term preventative protection
  • Multiple pad configurations available (2, 4, 6, or 8 pads depending on vehicle size)
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Turnaround Time

Typically 24 hours

5. Mine Spec Rustproofing Package

Maximum Durability for Mining, Industrial, and Extreme Conditions

Best Suited For

  • Mining vehicles (surface and underground operations)
  • Fleet and commercial vehicles in heavy-duty service
  • Vehicles operating in harsh industrial environments
  • Coastal, marine, and offshore operation vehicles
  • Heavy-duty 4WDs and work vehicles exposed to extreme conditions
  • Customers requiring maximum durability and long-term industrial-grade protection

Industrial-Grade Protection for Harsh Operating Environment,

This package is designed for vehicles operating in the toughest environments where corrosion, abrasion, chemicals, and constant exposure to moisture and contaminants are a daily reality. By incorporating industrial-strength, abrasion-resistant epoxy-based coatings, this treatment delivers significantly enhanced durability and long-term corrosion protection compared to standard automotive coatings.

The Mine Spec package is the most advanced rustproofing solution available, providing full vehicle protection using heavy-duty industrial coating systems, internal cavity protection, and electronic corrosion control.

What’s Included

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Comprehensive Vehicle Preparation

The vehicle undergoes a complete preparation process to ensure maximum coating performance and long-term durability.

 

Preparation includes

  • Thorough underbody wash to remove dirt, mud, grease, and contaminants
  • Full masking of vehicle body and sensitive components
  • Removal of bash plates where required
  • Removal of all wheels, including spare wheel (if mounted underneath)
  • Surface inspection and preparation prior to coating application
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Epoxy-Based Industrial Protective Coating

A range of industrial-strength, abrasion-resistant epoxy coatings is applied to provide superior protection against corrosion, chemical exposure, and physical wear. These coatings are specifically designed for vehicles operating in demanding environments such as mining sites, construction projects, marine operations, and heavy industry.

 

Epoxy treatment options include

 

Epoxy Surface Mining Spec 7
Designed for surface mining vehicles exposed to dust, mud, and abrasive conditions.

 

Epoxy Underground Spec 8
Engineered for underground operations where moisture, chemicals, and confined environmental conditions accelerate corrosion.

 

Epoxy Salt and Offshore Spec 9
Formulated for coastal, marine, and offshore environments where salt exposure is constant and highly corrosive.

These advanced epoxy systems deliver:

  • Exceptional abrasion resistance
  • High chemical resistance
  • Superior corrosion protection
  • Long-term durability in extreme operating environments
  • Industrial-grade protective performance

 

Areas Typically Treated

  • Complete underbody and chassis
  • Wheel arches and structural components
  • Fuel, air, and hydraulic tanks
  • Transfer casing, driveline, axles, and differentials
  • Mounting points for tow bars, bull bars, and accessories
  • Structural steel components exposed to harsh conditions
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Internal Cavity Protection - Heavy-Duty Application

Cavity Wax Treatment - Fogging Application

All accessible structural cavities and enclosed sections are treated using specialised fogging equipment to ensure deep penetration and full coverage. This internal protection prevents corrosion from developing inside the chassis and structural components.

 

Areas Typically Treated

  • Chassis rails
  • Cross-members
  • Box sections
  • Structural cavities and hidden internal sections
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Electronic Rust Protection - CAT System Installation

A CAT Electronic Rust Protection System is installed to provide continuous corrosion protection to painted metal surfaces throughout the vehicle.

 

System Features

  • Continuous electronic corrosion protection
  • Suitable for harsh industrial environments
  • Safe for vehicle electrical systems
  • Multiple pad configurations available (2, 4, 6, or 8 pads depending on vehicle size)
  • Long-term preventative protection
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Upperbody and Engine Bay Protection

Engine Bay Rustproofing - Resin-Based Coating

A high-quality resin-based coating is applied to exposed metal surfaces in the engine bay to protect against corrosion caused by heat, moisture, and environmental exposure.

 

Areas Typically Treated

  • Painted metal surfaces within the engine bay
  • Nuts, bolts, and mounting fixings
  • Upper radiator supports
  • Behind headlights and grille
  • Seams and structural joints
  • Around and beneath the battery
  • Other exposed metal surfaces prone to corrosion

 

Particular attention is given to seams, joints, and connection points where corrosion commonly starts.

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Turnaround Time

Typically 24–48 hours
(depending on vehicle size and specification requirements)

Rust Removal & Surface Preparation

We specialise in professional rust removal through abrasive blasting, ensuring:

  • Complete removal of corrosion
  • Correct surface preparation
  • Maximum coating adhesion
  • Long-term effectiveness of the protection system

Our work is focused exclusively on the undercarriage, where corrosion protection is most critical.

Why Choose Kimberley Auto Care

Every vehicle undergoes a detailed preparation procedure before coating application, ensuring the protective system bonds correctly and performs as intended.

  • Exclusive Endrust Australia application facility
  • Purpose-built underbody protection process
  • Solutions tailored to real Kimberley conditions
  • Proven performance for recreational, marine and mining vehicles
Rear Cross Member & Tow Bar – Rust Proofing
Heavily rusted rear cross member and tow bar caked in red Kimberley dirt before rust proofing by Kimberley Auto Care Rear cross member and tow bar coated in black rust-proof sealant after chassis rust proofing by Kimberley Auto Care
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Rear Differential & Suspension – Rust Proofing
Heavily corroded rear LSD differential housing and suspension components covered in surface rust before rust proofing by Kimberley Auto Care Rear differential housing and leaf spring suspension coated in satin-black rust-proof sealant after treatment by Kimberley Auto Care
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Full Chassis Strip-Down – Rust Proofing
Fully sealed ladder-frame chassis coated in satin-black rust-proof finish with treated leaf springs and differential after complete chassis rust proofing by Kimberley Auto Care
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Car Underbody – Rust Proofing
Before rustproofing showing heavy rust and corrosion on underbody chassis control arms and suspension components in Broome After rustproofing showing clean protected underbody chassis and suspension components treated by Kimberley Auto Care in Broome
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Rust proofing in Broome

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Broome's salt air, humidity and coastal conditions accelerate rust faster than most owners realise. We inspect your underbody, treat existing corrosion and apply professional rust protection to chassis, suspension and components so your vehicle stays structurally sound for years to come.

Gallery

Vehicles We've Rust Proofed

Rust-proofed front independent suspension with Alpha coilover shocks and sealed inner guard panels after undercarriage protection by Kimberley Auto Care
Top-down view of fully sealed ladder-frame chassis showing rust-proofed dual fuel tanks, exhaust system, and chassis rails by Kimberley Auto Care
Rust-proofed rear hitch receiver and cross member with red coil spring suspension visible after undercarriage treatment by Kimberley Auto Care
Sealed front chassis rails and subframe with Bilstein yellow shock absorbers after professional rust proofing by Kimberley Auto Care
Undercarriage rear view showing rust-proofed chassis rails, sealed differential housing, leaf springs, and spare tyre chain carrier after treatment by Kimberley Auto Care
Rust-proofed rear chassis rail and cross member with Bilstein shock absorbers and leaf spring pack under canopy-fitted tray by Kimberley Auto Care