A heavily filled and fibrated bituminous compound that remains soft and pliable once cured for a long time after application to allow for moderate movement. Features & Benefits:- Cold applied. - Waterproofs, points and seals. - Fibre reinforced. - Flexible. -  Trowellable. - Fast drying. - For exterior use. Uses: A multi-purpose, trowel grade material for waterproofing, stopping, bedding, pointing and sealing. Fibre reinforced making it ideal for filling cracks and holes and cures to give a strong and flexible compound. Can be applied to most common roofing surfaces including mastic asphalt, roofing felt, corrugated iron, cast iron, fibre/cement, slates, lead, copper, zinc, concrete and timber. Fibre reinforced making it ideal for filling cracks and holes and cures to give a strong and flexible compound. Perfect for metal guttering and downpipes. Apply using a steel trowel or putty knife.