If you suddenly spring a leak or discover a crack theres no need to call in costly tradesmen leaking gutters roofs pipes vents or cracked chimneys and walls can all be fixed in seconds using this amazing inventionbonding works on wood cement brickwork metals and much morerepairs are flexible watertight and permanentcan even be applied to damp surfacesnot suitable for high pressure pipes2x 500ml spray canbuy 2 and save 5