When the David's Fastglas Glass Fibre Tissue is activated with Fastglas resin, it forms a tough glass fibre reinforced plastic, which permanently retains its shape and bonds to most materials. It is ideal for repairing holes, splits and cracks. 1 square metre Easily cut to shape Sets in 20-30 minutes Forms a tough glass fibre plastic once activated Permanently retains shape and bonds to most materials Repairs holes, splits and cracks For best results, use with David's Fastglas Resin