Want to see how a new car gets painted?

‘Creating a colour is an inside job’, says Jordi Font from Seat’s colour and trim department. ‘In addition to following trends, a lot of intuition also goes into defining a new shade. You have to feel the pulse on the street and run with it.’

A total of 1,000 litres of paint are required to create a new shade – getting exactly the right shade, testing the paint on lots of different surfaces and in different circumstances. A car’s paint has the primary job of standing up to everything that nature and a driver can throw at it.

‘Colours get more sophisticated every day and the demand for customisation is a growing trend,’ says Jordi Font. An example of this is the new Seat Arona small SUV, which gives customers the opportunity of choosing from among more than 68 different colour combinations.

Mixtures are carried out in the lab that makes the work of creating a new colour strictly an exercise in chemistry. Every shade you can imagine is available to the scientists in the Seat laboratory. 

In the case of the colour palette for the Seat Arona, ‘by mixing 50 different pigments and metal particles we’ve created nearly 100 variations of the same colour to see which shade is the most suitable,’ says Carol Gómez from the colour and trim department. 

Once defined, every colour has been tested on metal plate samples to verify its application and ensure that it produces the intended visual effect. After these exhaustive procedures, only then can it be loaded on to the factory production line.

In the paint booths, cars are painted at a temperature of between 21 and 25 degrees. Two and a half kilos of paint is applied on each car in an automated process performed by 84 robots that takes six hours per vehicle.

The paint booths feature a ventilation system that is similar to the ones found in a hospital surgery theatre to prevent dust and other outside impurities from settling on the freshly painted cars.

‘We check the depth and subtlety of the shade on plates that are exposed to sunlight and in the shade to make sure that the applied colour matches the one we designed,’ says Jesús Guzmán

Each car gets seven coats in all, each as thin as a hair width but as hard as a rock, which are baked in an oven at 140 degrees.

Once painted, all it takes is 43 seconds to verify there are no deficiencies in the paint application. The vehicles pass through a CAT scanner that checks for smooth surfaces and ensures there are no impurities.