PPG Protective & Marine Coatings Sigma brand is a world leading heavy duty architectural, industrial, infrastructure, maintenance and marine coatings supplier. With international reach, we have developed a comprehensive range of Protective Coatings which are tried and tested in the most extreme conditions. From offshore, oil and gas platforms, bridges and infrastructure Sigma provides state-of-the-art steel protection and fire protection.
As part of the PPG Industries portfolio of brands, Johnstone's has a long history as one of the UK's foremost professional trade paint brands but we offer more than just high-quality paint products. We also provide a magnitude of support services that make the process of colour selection and product choice much easier for everyone – painters and decorators most obviously, but also for specifiers.