Professional undersealing
Dry Ice Prepared Car Undersealing
Professional undersealing, prepared with dry ice blasting. The difference between a coating that protects and one that traps rust beneath it.
Built on dry ice blasting
Why professional undersealing is different
A DIY underseal kit is a tin of product and an afternoon on axle stands. The product is rarely the problem. The preparation is.
Underseal sprayed over dirt, road film and old flaking coating has nothing sound to grip. Moisture gets behind it, and the coating that was meant to protect the metal starts hiding corrosion instead.
We prepare every underbody with dry ice blasting. Solid CO₂ lifts contamination and loose coatings without grit, water or chemicals. Each pellet sublimes on impact, leaving clean, dry metal for the underseal to bond to.
Professional versus DIY
What a kit cannot give you
The same tin of product performs very differently depending on what happens before it is applied.
Proper access
The vehicle on a lift, with wheels, liners and undertrays removed where access requires it. Every surface reached.
Clean, dry preparation
Dry ice blasting removes contamination and loose coatings without introducing moisture. The underseal grips sound metal.
The right product
Four systems held in-house. We match the product to the vehicle, not the other way round.
The process
How we underseal a car
Every vehicle is assessed individually. This is not a car wash and not a valet service.
- 01
Assess
Condition, existing coatings, use and storage. Scope agreed with you first.
- 02
Dry ice preparation
Underbody and arches dry ice blasted. Sound factory underseal generally preserved.
- 03
Inspect
Any corrosion found is discussed and dealt with before it can be covered.
- 04
Underseal
The agreed system applied evenly to every exposed surface.
Corrosion 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
Should I underseal my car myself?
You can, but the result depends on preparation, access and product choice. Without a lift and a thorough clean, DIY underseal often goes over contamination and moisture, which shortens its life.
What underseal do you use?
We hold four systems in-house: Lanoguard Clear, Bilt Hamber Dynax-UB, the full Dinitrol system and ceramic underbody coating. We recommend one based on the vehicle, its use and how it is stored.
Do you remove old underseal first?
Sound factory underseal is generally preserved by a standard dry ice clean. Failing or flaking underseal is removed as part of our underseal removal service, quoted separately.
Is undersealing worth it on a classic?
On most classics, yes, provided the preparation is right. Many have little original protection left, and the underbody is where structural corrosion starts.
Related services
One method, every stage of the job
Underseal Removal
Failing underseal removed by thermal shock, without grit.
View serviceUnderbody Rust Protection & Treatment
Floor pans, sills, arches and crossmembers, cleaned and protected.
View serviceCar Rust Proofing & Protection
Dry ice preparation followed by the right protection system.
View serviceBilt Hamber Dynax Underbody Protection
Durable wax-based protection for classics and regular use.
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
