Perma Recon Fibres are precision cut polypropylene fibres in two sizes of 6 mm and 12 mm which are used in plasters and in floor screeds to produce crack free and durable wall plasters, concrete panels and durable floor screeds. Perma Recon Fibres are milky white strands of poly propylene supplied in 6 mm and 12 mm lengths. The smaller 6 mm ones are used in plaster mixes where as the longer 12 mm ones are used in floor screeds.