Powertex: the versatile, environmentally friendly, acid free, water based textile hardener. Powertex air dries and becomes rock hard. Dip textile in Powertex, wring it out well and wrap or drape it around a frame or object to create amazing artworks and crafts. Once dry, pieces can be decorated with paint or pigments. Once finished, Powertex creates unique pieces of artwork for inside or outside display. For outdoor use Powertex can be weather proofed with two layers of Easy Varnish. The 5Kg bottle is recommended for very big pieces, regular use or workshops.