New anti-graffiti topcoats for PVC and PU coated fabrics

Pinneberg/Germany, March 12th, 2019 – Is that art or can it go? Unwanted paintings, unsightly marks with graffiti spray paints or permanent markers – sadly, an all too familiar sight in public spaces. And an expensive one to boot, because their removal is often very complicated. Avoid this work and ex-pense with anti-graffiti products from ROWA Lack.

To prevent spray paints, ink and co. from sticking to surfaces, or to facilitate their removal, substrates can be given anti-graffiti coatings by way of a precaution. A variety of coating systems are available for hard substrates such as facades or steel structures. ROWA Lack has concentrated on the development of anti-graffiti coatings for flexible PVC and PU web material for use in the field of synthetic leather, for example. The challenge here is to not only offer protection against graffiti but also improve the me-chanical and chemical resistance of the surfaces whilst retaining the flexible properties as well as the look and feel of the base material as best as possible.

With ROWAKRYL® M 34992 and ROWAKRYL® G 34994, ROWA Lack has managed to develop a glossy and a matt lacquer to satisfy these customer requirements. Both lacquers are transparent, solvent-free 2K systems that have been optimized to a pot life of more than eight hours. What’s more, they contain no solvents that are on the SVHC candidates list. Before processing, 2 3 percent of ROWASET 63762 has to be added to allow the lac-quers to develop their full properties. After their application they have to be dried for one minute at 140 °C. The lacquers are pref-erably applied directly to the web material with a rotogravure cylinder or doctor blade.

The ROWAKRYL® systems presented here are very resistant to solvents and chemicals and have a high scratch resistance. In ad-dition, surfaces coated with ROWAKRYL® M 34992 and ROWAKRYL® G 34994 are characterized by a low propensity to soiling and are very easy to clean. Dried permanent marker or ballpoint ink, for example, can usually be removed effortlessly and without leaving any residues on coated synthetic leather sur-faces using a dry cloth.

In the field of water-based coatings the combination of ROWAKRYL® G 34710W and ROWASET 64092W provides a 2K anti-graffiti system that has already proven its worth on TPU film. A further optimization of the existing system and the extension of the range of applications to include artificial leather, for exam-ple, are the topic of current development activities – if you are interested, our experts will be pleased to advise you.

About ROWA Lack:
The ROWA Lack GmbH was established in 1958 and is a partner in the ROWA GROUP of companies. The brand ROWA stands for technical competence, modern product design and customer oriented service the world over. Tai-lored customer solutions are part of the ROWA tradition and are a matter of course! The development of new products, the search for alternative raw materials and the constant and sustained optimization of our processes, cou-pled with modern technology, motivated employees and economical environ-ment protection enjoy the highest priority in our company. In 2010 the ROWA GmbH has been renamed into the ROWA GROUP Holding GmbH and the de-partments Masterbatch and Lack were newly formed as ROWA Masterbatch GmbH und ROWA Lack GmbH specialist division: Special Lacquer Systems and Top Coats.