A specially formulated sprayable mastic that immediately seals & repairs water leaks on a variety of roofing materials. Suitable for use in adverse weather conditions the hydrophobic formula displaces moisture ensuring a watertight bond with virtually any roofing material. The unique thickening system immediately structures on contact ensuring gaps & cracks are filled & repaired giving instant protection against water ingress. Developed to flex with the natural movement of the substrate Thompsons Emergency Instant Repair resists cracking & splitting ensuring protection against future leaks. Suitable for use on leaking roofs, guttering, pipes & drains & on caravans, garden sheds & greenhouses. Suitable for use on tile, slate, metal, asphalt, felt, wood & plastic.