Underbody protection, prepared with dry ice
Dry Ice Prepared Underbody Rust Protection
The underside of a car takes everything the road throws at it. We dry ice blast it clean, assess it properly and protect it with a system chosen for the vehicle.
Built on dry ice blasting
The part of the car you never see
Salt, water, grit and road film collect on the underbody faster than anywhere else. Floor pans, sills, crossmembers, jacking points and arches hold moisture long after the rest of the car is dry. That is where corrosion starts.
Our treatment begins with dry ice blasting. Contamination and failing coatings are lifted without abrasion and without water. Each CO₂ pellet sublimes on impact, so there is no media to clear and nothing left in the seams to undermine the protection.
With the underbody clean and dry, we inspect it, deal with anything that needs attention and apply the protection system that suits the car.
Why dry ice
Why the underbody needs a dry clean
Water is the problem. Adding more of it during preparation makes little sense.
Nothing left in the seams
No water and no grit lodged in folds, welds or box sections, waiting to work against the protection.
Rubber components untouched
Bushes, gaiters, CV boots and brake lines need no masking against grit, because there is none.
Inspection-ready
A clean, dry underbody shows exactly what is there. Nothing gets covered that should have been repaired.
The process
How we treat the underbody
Every vehicle is assessed individually. This is not a car wash and not a valet service.
- 01
Lift and assess
The vehicle goes on a lift. Wheels, arch liners and undertrays removed where access requires it.
- 02
Dry ice blast
Road film, salt deposits and failing coatings lifted back to clean, dry metal.
- 03
Inspect
Findings discussed with you. Repair arranged where needed, before anything is covered.
- 04
Protect
The agreed system applied to every exposed surface, with cavity protection where the system includes it.
Coverage
Areas we treat
The parts of the underbody that hold moisture longest, and corrode first.
Floor pans
The largest exposed area, and the first to collect standing water and salt.
Sills and jacking points
Structural, vulnerable and often hidden behind failing coatings.
Chassis rails and crossmembers
Cleaned to bare metal so every weld and seam can be assessed.
Find out moreWheel arches
Compacted mud and salt removed from behind the liners.
Subframes and mounts
Suspension mounting points cleaned and protected in place.
Cavities and box sections
Treated where the chosen system includes cavity protection.
Find out moreCorrosion protection
Four systems, one foundation
Protection applied to bare, contaminant-free metal bonds harder and lasts longer than the same product laid over road film. We hold four systems in-house and recommend by vehicle, storage and goal, rather than leading with one product.
Lanoguard Clear
Short-term protection, reapplied annually. Suited to vehicles in active use or stored outdoors.
2 yearsBilt Hamber Dynax-UB
Wax-based protection. The pragmatic choice for daily-use classics and weekend cars.
Around 5 yearsDinitrol Full System
A professional preservation system, applied as part of a full programme, with annual inspection and maintenance.
Longest-lastingCeramic Underbody Coating
The long-term option for high-value vehicles, maintained by annual inspection.
Each system has a recommended maintenance interval. We record yours and, with your permission, remind you when it is due, much like an MOT. Protection periods are maintenance intervals, not warranties.
Vehicles we work on
The cars that come to us
We also serve concours entrants, pre-sale auction preparation and classic vehicle traders preparing stock. Anything where the owner cares enough about long-term preservation to do it properly.
Getting your vehicle to us
Two ways to bring your vehicle to us
The work happens at our dedicated commercial unit: Unit 1C, Guildford Road Industrial Estate, Hayle, Cornwall, TR27 4QZ. How your vehicle gets here is your call.
Drive it yourself
Bring the car to us
Book a slot and bring your vehicle to our West Cornwall workshop. A courtesy Porsche 996 Cabriolet is available to qualifying clients for the duration of the work, subject to availability.
Concierge collection
We come to you
Your vehicle collected from your door by our trusted dedicated car transport partner, anywhere in the UK, and delivered back once the work is complete. Quoted with your assessment.
Questions
Frequently asked questions
What is the difference between underbody protection and undersealing?
Undersealing usually means a hard or rubberised coating. Underbody protection is broader and includes wax and lanolin-based systems that stay flexible and creep into seams. We recommend by vehicle and use, not by product.
Can you treat a car that is used every day?
Yes. Lanoguard and Dynax-UB are both well suited to cars in regular use, and are straightforward to maintain.
Will treatment stop existing rust?
Protection slows corrosion by keeping moisture and oxygen away from the metal. It does not repair metal that has already failed. Anything that needs repair is identified after the dry ice clean, before protection goes on.
How long will the car be with you?
It depends on condition and the system chosen. We confirm timings as part of your assessment.
Related services
One method, every stage of the job
Car Rust Proofing & Protection
Dry ice preparation followed by the right protection system.
View serviceCar Undersealing & Underbody Protection
Professional undersealing on a properly prepared underbody.
View serviceCar Underbody & Chassis Cleaning
Specialist dry ice cleaning. Not a jet wash.
View serviceLanoguard Underbody Treatment
Lanolin-based protection, applied professionally.
View serviceGet in touch
Request a call back
Get in touch and tell us about your vehicle and the work you are considering. Leave your details and we will call you back to talk it through and get you a real quote.
- A real quote, usually within 24 hours
- No obligation
- Nationwide collection available
Prefer to talk now? Call 01736 804118
