Johnson Matthey underglaze colours provide the most cost-effective solution to durable decoration for tableware. We offer a wide selection of shades plus extensive media and ink technology, so as to provide decorators with unlimited potential for colour and effects on clay or bisque substrates. Underglaze colours can be supplied as powder, paste, total transfer paste, aqueous suspension or thermoplastic formats. 13 Series Range 13 Series 'Juicy' Underglaze Media and Covercoat A worldwide network of experienced technicians is available to help you make the right choice of products. Please do not hesitate to contact them – and they will advise on the best possible solution for your specific production environment. Contact details are available at our locations page.