A very special kind of individualisation: The optional M design graphic is available exclusively for the BMW M4 Coupé and the BMW M4 Competition Coupé. This unique contrasting paint finish on the bonnet and boot lid accentuates the distinctive sports car character. The two expressive colours Black high-gloss and Red high-gloss are available.
HIGHTECH: THE HIGHLY INNOVATIVE APPLICATION METHOD WITHOUT MASKING .
The M design graphic is based on a highly innovative application method that allows several paint colours to be used and designs to be applied without stencils or masking the vehicle – the overspray-free painting process. This technology not only delivers an impressive result, it also reduces waste and energy consumption.
THE PROCESS.
The BMW Group developed the new application process in collaboration with mechanical and plant engineering firm Dürr, based on its EcoPaintJet Pro applicator. The difference: In the conventional procedure, paint is atomised by a rotating bell with 35 to 55,000 revolutions per minute and adheres electrostatically to the body. The new method works without electrostatics, relying instead on jet application: The paint is applied using an orifice plate that enables high edge definition with a variable paint thickness of between 1 and appr. 50 millimetres. This requires maximum precision from both the robot and application technology.
INNOVATIVE PROCESS.
Until now, custom designs like the M design graphic can only be realised using manual masking. With the new technology, this step is no longer necessary. It thus saves time and, by eliminating the masking foils, also resources. This innovative process also prevents so-called overspray, i.e. excess paint particles, which therefore no longer has to be disposed of. A further contribution comes from lower energy consumption: Since paint separation is no longer required, the amount of air needed is also lower. At around 7,000 operating hours, this results in energy savings of more than 6,000 megawatt hours and reduces the carbon footprint by nearly 2,000 tonnes per year.
