SW OCTOBER 2015 - Page 46

DEVELOPMENTS IN COATINGS HUGO BOSS racing yacht all in black due to functional pigments made by BASF BASF now official partner of Alex Thomson Racing Launch of the first entirely black IMOCA 60 sailing yacht in the world made possible by functional pigments with heatreflecting properties BASF coating technology based on Paliogen® and Sicopal® pigments Whether the new racing yacht of the fashion house HUGO BOSS is going to be the fastest sailing boat in the world is yet to be seen. But one thing is certain: skippers and sailing fans around the world will not be able to ignore this state-of-the-art yacht. Alex Thomson Racing’s new IMOCA 60 racing yacht – also sponsored by the premium automobile brand Mercedes-Benz – is the first entirely black IMOCA 60 yacht in the world. This was made possible by painting the deck with a coating developed by BASF, which is based on the functional pigments made by the company. The yacht, skippered by leading British sailor Alex Thomson, will compete in its first Ocean Masters World Championship Race, The Transat Jacques Vabre, in October this year. Yachts that feature black sails or a black hull are not altogether new. A deck structure that is entirely black, however, is a novelty because heavy sun exposure tends to heat up the dark surfaces enormously. This can lead to a heat build-up in the cabins below deck, which would make living conditions onboard extremely uncomfortable and can even affect the structural integrity of the composite materials. Hence, it was decided to use the functional pigments made by BASF to formulate the coating. They ensure that surfaces that are painted in dark colors can remain significantly cooler on hot days as they reflect rather than absorb heat. The ship builders used the special pigments that are sold under the Paliogen® brand, which are transparent for Near Infrared Light (NIR), as well as functional NIR-reflecting pigments from the Sicopal® range. Reflecting most of the sunlight The pigments are an innovative solution for solar heat management: through their use, the dark surfaces of the deck reflect a large part of the sunlight that they are exposed to. The sun beams penetrate the base coat whilst the filler below reflects the sunlight and ensures that the temperatures on the coated surfaces as well as inside the boat Alex Thomson Racing’s new IMOCA 60 racing yacht is the first entirely black IMOCA 60 yacht in the world. This was made possible by painting the deck with a coating developed by BASF, which is based on the functional pigments made by the company. Photo: Mark Lloyd 44 October 2015 are significantly lower than they would be if conventional black pigments had been used. "The black coating of the deck has been made possible by the development of this coating technology based on functional pigments," explains Arno Tuchbreiter, Head of Pigment Marketing for Industrial Coatings at BASF. "Otherwise, the radiation of the sun would lead to an unbearable build-up of heat in the windowless cabin and the interior of the boat. The deck too would become too hot and people would struggle to walk on it barefooted without getting burned.” Great potential in the automotive sector The paint, based on functional pigments, is not only suitable for yachts and ships, but also highly interesting to the automotive sector. “Therefore, Mercedes-Benz has been involved in the development process at BASF from the very start, and we have conducted extensive testing of this paint on our vehicles. Our intention is to use it on various models over the next few years,” says Martin Bremer, Head of Color and Trim Mercedes-Benz Design. CONTINUED ON PAGE 48 Functional pigments made by BASF were used to formulate the coating. They ensure that surfaces that are painted in dark colors can remain significantly cooler on hot days as they reflect rather than absorb heat. Photo: Mark Lloyd follow us on twitter @surfaceworldmag