CavityWax - RustOust

Ousting Rust in every way!

Cavities often fill with damp debris, silt and even water, wax injection forms a barrier

The cavities on a vehicle are often neglected and forgotten about. However they tend to retain moisture and damp debris that allows the formation of corrosion on the surfaces. In fact testing indicates that the rust in a crevice, hidden seam or cavity can corrode up to 200 times faster than on the open surfaces due to the humidity of the oxygen starved space.

The idea of cavity wax is to coat the cavities in a thick film of wax that stops the rust forming by displacing the moisture content.

However if the job isn't done properly, cavity wax injection won't help, its important to properly disperse the coating at the right thickness.
How do we make sure we do it right?

High Quality Wax

We only use the best products on the market and we don't dilute them, we heat them to 80-100oC before use to achieve good viscosity.

Effective Atomisation

The super hot wax combined with our Hydrovane compressor running at 50cfm & 150psi achieves excellent atomisation.

360 Degree Wand

The most magic of wands needs to be long and have 360 degree spray holes, we have a secondary hook wand for angles.

Our Process for Cavity Wax Injection

Fighting Corrosion Inside Out

Cavity Injection from start to finish explained

1. Cleaning the Cavity

The first part of cleaning the cavity is to remove any debris, silt and contaminates that's built up. We use our powerful air compressor to blow through the cavity breaking up anything present and dispersing it out of the channels through the drainage holes.

2. More Cleaning

Next we attach a wand and metal pot full of penetration fluid (WD-40 to be precise) and using the compressor again we spray throughout the cavities. Penetration fluid displaces any mositure ready for the wax to be injected.

3. Compressed Air Blow-Through

A quick final blow through of compressed air makes sure the cavity surfaces are ready for the cavity wax injection to be done.

4. Injecting the Wax

Using the wands with our powerful compression we achieve a high rate of atomisation as we spray the hot cavity wax (we heat the wax up to between 80oC and 100oC in our banbury) throughout the cavities. The wax creates a lasting thick comprehensive coating on the surfaces of the cavities.

5. Annual Reapplication

The most important part of the Annual Warranty Inspection is reapplying the cavity wax which is expected to have a 12mth lifespan and needs renewing. More information about the Annual Warranty Inspection can be found here.

Some Pictures of the Final Finish

Not much to see really, just the overflow from the deep fill.

Basic Product Information

Understanding the choice of products

There's so many different products out there, here are some of the ones we use (not all at once obviously) in different combinations depending on what works best for the job in question. If you have a specific request please talk it through with us, we can accomodate your choices as long as what you are asking for can meet our standards for longevity and warranty.

Karcher Vehicle Pro Wash

Concentrated Detergent

Broad dirt-dissolving range.
Removes stubborn road dirt.
Rapidly separates oil.
Tensides biodegradable EEC 648/2004.

Chlor-X DTS

Salt Removing Agent

Removes corrosive road salt.
An organic bonding chemical.
Neutralises salt crystals
Biodegradable, Contains no VOCs.

Phos-Kleen B

Rust Remover

Phosphoric acid based surface treatment.
Light surface rust removal.
Chemically converts to iron phosphate.
Passivates rust at micropour level.

RustBuster FE-123

Molecular Rust Converter

Tannic acid based surface treatment.
Reacts with surface oxides.
Develops neutral latex layer.
Foundation for treatment.

British 1449-CR4 Mild Steel

High quality steel

1.1 – 1.2 mm thickness
Automotive standard
Easy to Cut & Bend
Perfect for welding plates.

QuikSteel Epoxy Putty

Steel Reinforced filler

Metal Instant Repair Filler
Sets steel hard less than 1hr
Permanently bonds steel
Temperature resistant -32°C to 260°C

Dinitrol 6030

Metalised Body Filler

Pyrmoplast Aluminium
Nonporous filler
Excellent corrosion protection
Compact and pore-free

Teroson UP 210

Polyester body filler

Hard multipurpose repair paste
Resistant to water, oil, fuel, most chemicals
Perfect for body lines & pinholes
Excellent build quality and fine finish