Thompson's Emergency Instant Repair Aerosol is ideal when making repairs to leaking gutters and downpipes in hard to reach areas. It also includes a scrim bandage for use with deeper cracks and repairs.

Before you start, give the surface a scrub with a stiff bristle brush to get rid of any dust, dirt or algae. Give the area of repair a light sand. Give the can a really good shake until you can hear the mixing balls starting to rattle. Continue to shake the tin for a further minute. For small cracks and holes: hold the aerosol 45-60cm away from the area of repair. Spray until the whole area is covered. For larger areas of repair: use the scrim bandage to reinforce the repair. Spray a first coat over the damaged area. Embed the bandage into the coating and apply at least 3 more heavy coats. Hold the can upside down and spray for 3 seconds to clear the nozzle.