Powertex is a versatile, environmentally friendly, acid free, water-based, universal art medium. When used traditionally, it will harden any absorbent natural materials, fabrics and fibres and can be used to create incredible textural effects for painting, sculpture and mixed media when combined with self-hardening clays, concrete, stone, ceramic, wood, sand, Stone Art and Easy3Dflex. There are 11 Powertex colours including: Transparent, Terracotta, Grey, Bronze, Ivory, Green, Black, Red, Yellow, Blue and White, available in 500g, 1kg or 5kg. All the colours are inter-mixable and can be combined with any other water-based mediums. The sky is the limit for creative possibilities with this incredible medium! Ensure you allow your work to dry for at least three weeks before putting it outside. The 1Kg bottle is our most popular size: it’s good value, it will enable you to do a few projects and really experiment to get a feel for the medium.