Underbody coatings
Protect exposed undersides from corrosion and road wear.
LM PAINTSREFINISHING SUPPLIESDINITROL CORROSION PROTECTION
Protect underneath.
Preserve within.
Browse underbody & stonechip products →
Underbody coatings and cavity waxes for everyday vehicles, classics, 4x4s and commercial fleets. Choose protection for exposed surfaces and enclosed sections, with advice from LM Paints.
Prices below exclude VAT and are based on the Dinitrol Direct price for each listed pack, checked 23 October 2026. VAT is added at checkout. Other pack sizes and treatment kits are available by enquiry.
Northern Ireland delivery only — £8.33 + VAT (£10.00 total) for orders up to 25kg. Enquiries welcome from across the UK and the Republic of Ireland.
Cavity waxes
Reach inside doors, seams and enclosed chassis sections.
Preparation matters
Remove loose material and follow the recommended treatment system. Ask us if you are unsure which products to combine.
Underbody protection
DINITROL
DINITROL 4941 Black Underbody Protection
1 litre Schutz can
A black, bitumen-based underbody coating that forms a robust, abrasion-resistant film. Its self-healing protection is suited to vehicle undersides and components exposed to demanding conditions. Apply to properly cleaned and dried surfaces in accordance with Dinitrol guidance.
£18.33Per 1 litre Schutz can · excluding VAT
View product & buy →
DINITROL
DINITROL 4942 Brown Underbody Protection
1 litre Schutz can
A brown hard-wax underbody coating for cars and commercial vehicles. It offers stonechip and chemical resistance while remaining flexible at low temperatures. Suitable for clean, dry painted surfaces and compatible existing underbody coatings.
£15.83Per 1 litre Schutz can · excluding VAT
View product & buy →
DINITROL
DINITROL Metallic Underbody Protection
500ml aerosol
A brown underbody coating offering long-lasting corrosion protection, temperature resistance and flexibility in cold conditions. Designed for vehicle undersides and also suitable for selected metal structures, machinery and storage protection applications.
£16.66Per 500ml aerosol · excluding VAT
View product & buy →Cavity protection
DINITROL
DINITROL ML Cavity Wax
500ml aerosol
A penetrating cavity protection treatment for doors, frame sections, seams and hard-to-reach joints. Its thin consistency helps it creep into gaps, displace moisture and protect used vehicles. Can also be used in specified multi-stage Dinitrol underbody protection systems.
£17.49Per 500ml aerosol · excluding VAT
View product & buy →
DINITROL
DINITROL 1000 Cavity Wax
500ml aerosol
A transparent polyethylene-wax cavity treatment for enclosed vehicle sections and doors. It provides strong water repellency, good penetration and low-temperature performance, leaving a protective wax film for long-term corrosion protection.
£17.49Per 500ml aerosol · excluding VAT
View product & buy →
DINITROL
DINITROL 3125 HS Cavity & Universal Wax
1 litre Schutz can
A high-solids, dark-brown protective wax for interior and exterior vehicle surfaces. Its flexible coating resists cracking and flaking, and it is particularly useful in protection systems for older vehicles. Follow Dinitrol guidance when combining it with ML for corroded areas.
£18.33Per 1 litre Schutz can · excluding VAT
View product & buy →Rust & stonechip protection
DINITROL
DINITROL RC900 Rust Converter
400ml aerosol
An epoxy-resin-based rust converter that reacts with rust to form a stable organic iron complex. Once dry, it leaves an adherent protective film that can serve as a base for compatible paint and corrosion protection systems. Follow the preparation and overcoating instructions.
£33.33Per 400ml aerosol · excluding VAT
View product & buy →
DINITROL
DINITROL 445 Stonechip Protection
500ml aerosol
A quick-drying, black synthetic-resin coating for corrosion and stonechip protection. Suitable for areas such as sills, wheel housings, spoilers and rear aprons, and overpaintable with compatible finishes according to the manufacturer instructions.
£15.83Per 500ml aerosol · excluding VAT
View product & buy →Product images illustrate the range. The pack size stated beside each price is the item supplied. Always follow the current product data sheet for preparation, application and compatibility.
HELP CHOOSING YOUR TREATMENT
Underbody & cavity protection enquiry
Tell us your vehicle, the areas you want to protect and the pack sizes you need. We can help you choose a suitable Dinitrol treatment system.
Product details and price references: Dinitrol Direct official UK shop ↗.