- Manufacturers of high quality ceramic glazes, acrylic stains, brushes, molds and accessories for ceramists worldwide. Home Page About Mayco F A Q Health and Safety Contact Us Roll-A-Coat Tintable Glazes Exciting New Products Tintable Rolling Glaze to coat bisque interiors. Easy and fun to use! Available in 2 formulas to fit your needs. Technique of the Week Element Elephant Vase Take a Class!www.maycocolors.com