Extreme Vehicle Chassis Paint 20.0 kg

Q: Do I need to use a primer before applying Extreme Vehicle Chassis Paint?

Bare metal, shot-blasted, or heavily corroded steel should be treated with Extreme Zinc-Rich Primer or a suitable anti-corrosion primer for maximum protection. Sound, previously painted chassis or lightly corroded surfaces can be overcoated directly after mechanical abrasion to provide a key.

Q: How long does Extreme Vehicle Chassis Paint take to dry?

At around 18 °C, it is touch dry in 2–4 hours, ready for recoating after 4–6 hours, safe for light handling after 12 hours, returns to road use after 48 hours, with full chemical and corrosion resistance achieved in seven days.

Q: What surfaces is Extreme Vehicle Chassis Paint suitable for?

It adheres well to properly prepared steel and iron chassis, subframes, suspension components, axle housings, agricultural trailer frames, plant equipment, and primed metal surfaces, making it versatile for restoration, fleet maintenance, and agricultural use.

Q: Is Extreme Vehicle Chassis Paint resistant to road salt and corrosion?

Once fully cured, it provides outstanding resistance to road salt, moisture, oils, fuels, and automotive chemicals, protecting chassis rails, underbodies, and suspension components from rust and long-term corrosion damage.

Q: Can I apply Extreme Vehicle Chassis Paint over existing rust?

No, heavily corroded surfaces must be shot-blasted, wire-brushed, or mechanically ground back to sound metal before priming and painting. Light surface rust can be treated with a wire brush or abrasive pad, followed by thorough degreasing.

Q: How much area does one tin of Extreme Vehicle Chassis Paint cover?

A 5 L tin covers approximately 30–40 m², a 10 L tin covers around 60–80 m², and a 20 L tin covers approximately 120–160 m² across two coats — exact coverage depends on surface profile, application method, and preparation.

Q: Can Extreme Vehicle Chassis Paint be sprayed?

Yes, it can be applied by brush, medium-nap roller, or spray equipment. For airless spray use a 15–19 thou tip at 2,000–2,500 psi, or for conventional spray use a 1.8–2.2 mm tip at 40–50 psi. Thin up to 10% with standard thinners if required.

Q: Is Extreme Vehicle Chassis Paint made in the UK?

Yes, it is manufactured in the UK under ISO 9001 quality assurance, ensuring consistent formulation, reliable corrosion protection, and professional-grade performance on every restoration, fleet maintenance, and agricultural project.

Manufactured by Extreme Paints

Why Choose Our Products?

Tough polyurethane coating for chassis underbodies and heavy machinery.

Resists road salt oils fuels and stone chipping.

Excellent adhesion to primed metal and prepared steel.

Quick drying — fast return to service for workshops and fleets.

Manufactured in the UK under ISO 9001 standards.

Extreme Vehicle Chassis Paint is a high-performance, solvent-based polyurethane (PU) coating designed to protect vehicle underbodies, chassis rails, suspension components, agricultural machinery, trailers, and exposed metalwork from rust, corrosion, and the mechanical wear of everyday road use. Manufactured in the UK under strict ISO 9001 quality standards, this heavy-duty polyurethane paint delivers outstanding abrasion resistance, chemical protection, and a smooth professional finish.

Unlike standard chassis paints, this hard-wearing polyurethane formula is engineered to handle constant road salt exposure, stone chipping, oils, fuels, and harsh weather conditions, making it one of the most reliable solutions for vehicle restoration, fleet maintenance, and agricultural equipment refurbishment. Available in a wide range of bold, UV-resistant colours including Grey, Light Grey, Dark Grey, Mid Green, Dark Green, Red, Post Office Red, Orange, Blue, JCB Yellow, White, Black, and Brown, it combines aesthetic appeal with robust corrosion protection, keeping chassis and underbodies safe, presentable, and cost-effective for years.

For maximum adhesion on bare metal or heavily corroded substrates, ensure surfaces are mechanically prepared, shot-blasted, or treated with a suitable zinc-rich or etch primer before painting. This ensures deep penetration, surface stability, and a longer service life.

Suitable Substrates:

Extreme Vehicle Chassis Paint is versatile and adheres to a wide range of properly prepared surfaces, making it suitable for:

Steel & Iron Chassis: Works on chassis rails, subframes, crossmembers, and structural components found in cars, vans, trucks, and trailers.
Suspension & Drivetrain Components: Suspension arms, axle housings, trailing arms, and exposed underbody metalwork.
Wheel Arches & Underbody Panels: Ideal for sills, inner arches, and exposed panels vulnerable to road spray and salt.
Agricultural & Plant Equipment: Suitable for tractor chassis, trailer frames, loaders, and machinery requiring tough protective finishing.
Primed Metal Surfaces: When primed correctly, suitable for bare metal restoration and overcoating of existing sound chassis paints.

Note: Avoid applying to unprepared, heavily corroded, or flaking surfaces without prior mechanical preparation. Not recommended for use on aluminium or galvanised steel without an appropriate etch primer.

Coverage & Spread Rate:

Maximise value and performance with predictable coverage across different pack sizes:

6–8 m² per litre on clean, prepared metal (first coat)
8–10 m² per litre on second coat (reduced absorption)
5 L tin covers approx. 30–40 m² (two coats)
10 L tin covers approx. 60–80 m² (two coats)
20 L tin covers approx. 120–160 m² (two coats)
1000 L IBC tank for large-scale fleet, restoration, and commercial workshop projects

Applying two thin coats at right angles ensures a uniform finish, greater adhesion, and long-term corrosion protection.

Drying & Curing Times (@ 18 °C):

Designed for professional workshops and restoration environments where downtime must be minimised:

Touch Dry: 2–4 hours
Recoat Window: 4–6 hours
Light Handling: 12 hours
Return to Service: 48 hours
Full Chemical & Corrosion Resistance: 7 days

This curing schedule ensures vehicles and equipment are back on the road quickly without compromising hardness or protective qualities.

Storage & Thinning:

For long-term product stability and correct application:

Store between 5 °C and 30 °C in sealed containers, away from heat, sparks, and open flames.
For spray application, thin with white spirit or PU thinner (≤ 5%).
Always order the required batch in one purchase to ensure colour consistency across the project.

Upgrade your vehicle restoration, fleet maintenance, or agricultural refurbishment project with the proven strength of Extreme Vehicle Chassis Paint. Available in 5 L, 10 L, 20 L tins, and 1000 L IBC tanks — order online today for fast UK delivery and give your chassis, underbodies, and equipment the durable, corrosion-resistant, and professional finish they deserve.

Note: However, please bear in mind on some occasions the packaging may arrive slightly damaged. Please do not order if you won't be satisfied with this.

Extreme Vehicle Chassis Paint is designed for underbody protection across classic car restorations, commercial fleet maintenance, agricultural machinery refurbishment, and off-road vehicle builds. It is commonly specified for:

Chassis rail and crossmember restoration on Land Rovers, classic trucks, and vintage cars
Suspension component protection on modified and performance vehicles
Wheel arch and sill coating on rust-prone older vehicles
Agricultural trailer frames, plant equipment, and implements
Light commercial van underbodies where long-term corrosion resistance is essential

This versatility makes it the trusted choice for professional bodyshops, mobile mechanics, agricultural contractors, and home restorers who demand factory-grade protection without the cost and complexity of specialist application equipment.

Application Instructions

Surface Preparation

All metal surfaces must be clean, dry, and free from rust, oil, grease, wax, and loose paint. Remove heavy corrosion by shot-blasting, wire brushing, or mechanical grinding back to sound metal. Light surface rust can be treated with a wire brush or abrasive pad. Degrease thoroughly using a suitable solvent cleaner or panel wipe and allow to dry completely. Ensure moisture content is below 4% before application. For best results, apply within 4 hours of final surface preparation to avoid flash rusting.

Priming

On bare, shot-blasted, or heavily corroded steel, apply one coat of Extreme Zinc-Rich Primer or a suitable anti-corrosion primer to provide maximum protection. Allow primer to dry fully (4–6 hours) before topcoating. Priming is generally not required on sound, previously painted chassis or clean prepared steel with only light surface corrosion, provided the surface has been mechanically abraded to provide a key.

Mixing

Stir thoroughly for at least 2 minutes using a paddle mixer or broad flat stirrer before application and regularly throughout use. The product is supplied ready for use. For spray application, thin up to 10% with standard thinners if required to achieve optimal spray viscosity. Do not over-thin, as this reduces film build and protective properties.

First Coat

Apply the first coat by brush, medium-nap roller, or airless spray equipment. Brush application is recommended for suspension components, recessed areas, and bolt-on parts to ensure full coverage of edges and fixing points. For spray application, use an airless sprayer with a 15–19 thou tip at 2,000–2,500 psi, or a conventional spray gun with a 1.8–2.2 mm tip at 40–50 psi. Apply a thin, even coat, ensuring complete coverage without runs or sags. Pay particular attention to seams, welded joints, and high-stress areas. Allow 4–6 hours drying time between coats under normal conditions.

Second Coat

Apply the second coat using the same method, working systematically to ensure complete coverage. The second coat will flow more easily and yield higher coverage as the substrate has been sealed. Check for thin areas or missed spots and ensure edges, bolt holes, and mounting points receive full protection. For maximum durability on heavily used vehicles, a second full coat is essential.

Optional Third Coat

For extreme off-road use, agricultural machinery exposed to abrasive soil and fertiliser contact, or coastal environments with high salt exposure, a third coat may be applied after the second coat has fully dried. This provides maximum film build and extended service life in harsh operating conditions.

Curing & Reopening Times

Light handling and component reassembly after 12 hours
Return vehicle to road use after 48 hours
Full chemical and corrosion resistance after 7 days

Avoid exposure to standing water, road salt, or chemical contact for 48 hours after the final coat.

Pro Tips

Apply in moderate temperatures (10–25 °C) with low humidity for optimal flow and levelling.
Avoid application in direct sunlight or on hot metal surfaces.
Mask surrounding bodywork and suspension rubber components to prevent overspray.
For best results, apply underbody protection with the vehicle raised on a ramp or over a pit for full access.
Work in manageable sections and maintain wet edges to prevent lap marks.

Clean-Up

Clean all brushes, rollers, and spray equipment immediately after use with white spirit, thinners, or standard brush cleaner. Flush spray guns and lines thoroughly. Dispose of contaminated rags and waste materials in sealed metal containers in accordance with local hazardous waste regulations. Do not pour thinners or rinsings into drains or watercourses.

Property	Value
Components	1-part single-pack PU resin
Base	Solvent-based polyurethane
Finish	Satin to gloss (depending on colour)
Recommended coats	2 (3 for extreme conditions)
Wet film thickness	100 µm (approx. 50 µm dry film)
Coverage	6–8 m² per litre (first coat), 8–10 m² per litre (second coat)
Touch dry	2–4 hours
Full cure	7 days

Property	Value
Tools	Brush, medium-nap roller, airless/conventional spray
Clean-up	White spirit / PU thinner
Shelf life	12 months unopened
Pack sizes	5 L, 10 L, 20 L, 1000 L IBC
VOC	< 430 g/L
Suitable for use	Exterior and interior metalwork
Primer required	Yes, for bare or heavily corroded metal

DATA SHEETS AND PRODUCT FILES

Below are all the products and files we have on this coating. If you require any more information on this product, please email us at support@tradesuppliesuk.co.uk or call us on 07929 525648 and one of our staff members will do their best to try and provide you with the information needed.

FILES AND DATA SHEETS

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Frequently Asked Questions

Do I need to use a primer before applying Extreme Vehicle Chassis Paint?

Bare metal, shot-blasted, or heavily corroded steel should be treated with Extreme Zinc-Rich Primer or a suitable anti-corrosion primer for maximum protection. Sound, previously painted chassis or lightly corroded surfaces can be overcoated directly after mechanical abrasion to provide a key.

How long does Extreme Vehicle Chassis Paint take to dry?

At around 18 °C, it is touch dry in 2–4 hours, ready for recoating after 4–6 hours, safe for light handling after 12 hours, returns to road use after 48 hours, with full chemical and corrosion resistance achieved in seven days.

What surfaces is Extreme Vehicle Chassis Paint suitable for?

It adheres well to properly prepared steel and iron chassis, subframes, suspension components, axle housings, agricultural trailer frames, plant equipment, and primed metal surfaces, making it versatile for restoration, fleet maintenance, and agricultural use.

Is Extreme Vehicle Chassis Paint resistant to road salt and corrosion?

Once fully cured, it provides outstanding resistance to road salt, moisture, oils, fuels, and automotive chemicals, protecting chassis rails, underbodies, and suspension components from rust and long-term corrosion damage.

Can I apply Extreme Vehicle Chassis Paint over existing rust?

No, heavily corroded surfaces must be shot-blasted, wire-brushed, or mechanically ground back to sound metal before priming and painting. Light surface rust can be treated with a wire brush or abrasive pad, followed by thorough degreasing.

How much area does one tin of Extreme Vehicle Chassis Paint cover?

A 5 L tin covers approximately 30–40 m², a 10 L tin covers around 60–80 m², and a 20 L tin covers approximately 120–160 m² across two coats — exact coverage depends on surface profile, application method, and preparation.

Can Extreme Vehicle Chassis Paint be sprayed?

Yes, it can be applied by brush, medium-nap roller, or spray equipment. For airless spray use a 15–19 thou tip at 2,000–2,500 psi, or for conventional spray use a 1.8–2.2 mm tip at 40–50 psi. Thin up to 10% with standard thinners if required.

Is Extreme Vehicle Chassis Paint made in the UK?

Yes, it is manufactured in the UK under ISO 9001 quality assurance, ensuring consistent formulation, reliable corrosion protection, and professional-grade performance on every restoration, fleet maintenance, and agricultural project.

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