Fading

In the past, car paintwork could be prone to fading, especially red and orange cars. Modern cars have largely solved this problem by using the clear-over-base system of paintwork, where a clear lacquer is applied over the coloured base coat. This clear coat provides protection from ultraviolet light and ozone. The coloured base coat it's self is also more UV stable, meaning that colours should stay vibrant for the life of the average car.

If you have a vintage car with solid paint, this is likely to fade and will do so far faster if unprotected with a wax or sealant. Because fading is caused mainly by UV radiation the faded paintwork is only on the very surface and so by polishing this away and removing this old paint, it can reveal bright and vibrant paint underneath. This can often be done a number of times over the car's life as older cars tended to have quite thick paint, however there is a limit before you polish through the base coat to the primer.

Should you have a fairly modern car and the paintwork does fade, the only remedy is to strip the paint off and repaint it as the affected paint is under the lacquer.

What it means

Fading is the gradual loss of colour and richness from a surface. On paintwork, strong colours such as reds and blues can slowly wash out to a flatter, paler shade. On plastics and rubber trims, rich blacks can turn grey. Inside the car, fabrics, leather and plastics can lighten, patch or discolour where sunlight hits them most. Fading is usually caused by UV exposure and general weathering rather than simple dirt or contamination.

Why it matters

Colour loss ages a car faster than dents do. A straight, mechanically sound vehicle with chalky paint and grey plastics reads as tired from across a forecourt, and the eye picks up unevenness before it picks up condition; panels that were waxed, coated or kept under cover hold their colour while the rest goes, which leaves a car looking patchy rather than simply old.

How far it has gone dictates what can be done. Light fading in sound clearcoat usually responds to polishing, since the dulling sits in the top few microns. Severe colour loss or patchy fade does not, and recolouring or repainting becomes the only honest answer. That threshold matters commercially as well, because a freshly painted panel beside a faded original announces itself, and a poorly matched repair on a faded car is just as obvious in the other direction.

Which panels fade first

Bonnets, roofs, the top edges of bumpers, mirrors and parcel shelves go first, being the surfaces that take the most direct sun. Inspection reports, detailing quotes and bodyshop appraisals record it as faded red paint, faded plastics, sun-faded dashboard or faded seat bolsters, most often on older cars and anything that lives outside.

Context

Fading sits alongside oxidation and staining as common appearance problems on ageing cars. On clearcoated paint, fading often goes hand in hand with oxidation - the top layer dries, goes chalky and loses depth of colour. On older single-stage paints the colour itself can chalk and powder. Exterior plastics can turn streaky or patchy, and interiors can show seat belt marks where covered areas have stayed darker. Detailers may test polish a small section to see how much colour and gloss can be brought back safely before deciding between restoration and recommending repaint or recolouring. Test polishing a small section is exactly what our workshop does before quoting on any faded classic; a hidden panel that responds well to the machine changes the conversation from respray to restoration.

Common mistakes

• Expecting severely faded or patchy paint to return to full, even colour with polishing alone when the pigment itself has broken down.
• Machine polishing heavily faded, thin paint without checking thickness, risking strike through to primer or metal.
• Reviving faded paint or plastics and then skipping protection, so the newly exposed surface fades again quickly.
• Confusing simple dirt or traffic film with genuine fading and repeatedly using stronger cleaners instead of tackling oxidation or UV damage.

Authored by Danny Argent. Reviewed by Gary Wray. Last updated 16 May 2026.