Winsor & Newton Cotman Watercolor Tubes

Thank you for contacting us. Each color in the Winsor and Newton Cotman line is rated individually because each color has its own color make up. The majority of the Cotman colors are AP Non-Toxic and have the AP seal of the Art & Creative Materials Institute, Inc on the back of the tube. A medical expert evaluates each product and its ingredients. A product can be certified non-toxic only if it contains no materials in sufficient quantities to be toxic or injurious to humans or to cause acute or chronic health problems. AP certification is reviewed by ACMI's Toxicological Advisory Board. Some of the colors in the line like Cobalts or Cadmium's might have a different ACMI rating because cadmium and cobalt are considered toxic pigments. Please let us know if you have any other questions or concerns.

Thank you for contacting us. Winsor & Newton Cotman watercolors are nondiscountable and the blue Jerry's price listed beside the individual color is the lowest price that we can sell the tube for. This price should be good for all of 2018. Please note that prices are subject to change without notice.