Mud is irritating on it, sunlight fades it, and bird’s poo corrodes it like nobody’s business. But one of the worst offenders when it comes to wrecking the paintwork on your car is pollen.
Carried on the wind, sticky pollen attaches itself to car paintwork and, when it warms in the sun, releases a strong acid that causes discolouration, swelling, and eventually cracks the paint.
Nissan paint is protected from the effects of the pollen acid by its cross-linking top coat. Long chains of molecules link together to make the paint chemically stronger.
To test its solution to the problem, Nissan has created an artificial pollen that is more voracious than any naturally found. The laboratory made pollen is dripped onto a sample of painted car body, which is heated to 40 degrees C for one hour. The pollen is then left to attack the paint for 24 hours before it is washed and polished. To pass the test, the painted sample must remain completely blemish free.