Powertex is a fabric hardener, an environmentally friendly water-based alternative to polyester. You can use it for all your statues, mixed media on canvas, home decorations, and jewelry. Powertex is a hardener for all absorbent and preferably natural materials such as textiles, paper, cardboard, leather, plush and fiberglass. Powertex easily mixes with sand and wood powder to create structures. Combine it with Stone Art powder to create a unique self-hardening modeling paste. Powertex adheres to all materials except plastic; that’s why we recommend covering your workplace with plastic.