Roberson PVA Medium is high-quality and versatile, offering a number of practical uses. It forms a clear, flexible film and has good adhesion to a wide variety of substrates, such as wood, concrete, paper and other porous surfaces. This PVA can also be used as a medium for acrylics, providing a higher viscosity and increasing its flow. It can also act as a glossy binder for acrylic paint. Roberson PVA Medium is available in 250g, 1000g, 2500g, and 5000g tubs.