Sun, salt and calima: why paint ages faster on the Alicante coast

A car that lives inland and a car that lives between Granja de Rocamora and the coast age differently. Here the enemy is not cold or snow: it is sun, airborne salt and the dust of the calima. All three attack the same layer, the clear coat, which is the only thing protecting the colour.

What actually happens to the clear coat

Clear coat is transparent and carries a UV filter, but that filter runs out. Over the years the sun degrades it until the layer loses elasticity, goes matt and starts to flake. That is why wear shows first on the roof, bonnet and the top of the tailgate: the horizontal surfaces that take the midday sun.

Once the clear coat lifts, the colour is bare and no polishing will fix it. The only answer is repainting the panel. Everything done before that point is cheap prevention; after it, it is body and paint work.

The salt does not have to come from the beach

You do not need to park on the seafront. The breeze carries salt several kilometres inland, it settles on the car and comes alive with the night humidity. It attacks mostly from below: underside, fasteners, brake lines, lower door and tailgate edges.

If the car goes to the beach, rinsing it with fresh water the same day, underside included, is the single habit that adds most years to the body.

The calima

Calima leaves a film of fine dust with hard particles. The usual mistake is wiping it with a dry cloth: that is sanding your car with sand. The circular marks you see on dark cars against the light almost always come from that.

With calima: plenty of water first so the dust floats off, and only then a microfibre mitt.

A routine that works here

- Wash every two or three weeks, always in the shade and on a cool car. - Two buckets: one with soap, one with plain water to rinse the mitt. It stops you dragging the same grit around. - Dry with microfibre, never let water dry by itself: the local hard water leaves marks that are hard to remove. - Wax or sealant every three or four months. It is the sacrificial layer that takes the punishment instead of the clear coat. - Bird droppings and insect remains off as soon as possible: in summer they mark the clear coat within hours. - If the car sleeps outside all year, consider a ceramic coating: it lasts far longer than wax and cleans more easily.

When polishing helps and when it does not

If the gloss is gone but the surface is still smooth and even, polishing brings the look back and then it gets sealed. If up close you see whitish patches, lifted edges or matt areas, the clear coat has already gone: polishing only makes it worse, because it removes what little is left.

In the workshop we look at it with the car dry and in good light and tell you plainly which of the two cases is yours. There is no sense charging you for polishing a car that needs paint, or painting a panel that two hours of machine work would still recover.