Golden Open Acrylic – Azo Gold S4 is a professional-quality acrylic paint offering an extended open time, allowing artists to work with the paint far longer than with traditional acrylics. With up to 100 times the drying time of regular acrylic paint, it behaves similarly to professional oil colours while maintaining the convenience of acrylics. Highly versatile, this paint can be used straight from the tube for traditional techniques, plein air painting, monoprinting, and screen printing. Its slow-drying formula allows for smooth blending, soft transitions, glazing, shading, and fine detail work, keeping the paint workable and wet for extended periods. The Azo Gold S4 colour delivers rich warmth and luminosity, adding depth and vibrancy to any composition. Fully compatible with the Golden Open range of mediums, this acrylic adapts effortlessly to a wide variety of styles and creative approaches, making it an excellent choice for artists who value control, flexibility, and expressive freedom.