Spray a larger area than area where the leak is and feather the edges. For best results, apply multiple coats rather than one thick coat and use at can temperatures above 60ºF. Make sure Flex Seal has filled all cracks and holes and is fully cured before testing product. If light can pass through, apply additional coats.

Flex Seal has many advantageous applications and uses, that when applied correctly, can last for many years. The most common uses for Flex Seal are: Fix leaky roofs, gutters, and downspouts, Repair RV’S, campers, and mobile homes, Repair skylights, Vent Pipes, For roof drip edges and flashings, Leaky or broken hose and PVC pipe repairs, Leaky or broken hose and PVC pipe repairs, To seal or repair windowsills, To seal or repair windowsills, For A/C drip pans, portable A/C units, duct work, and chimneys, On boats and other personal watercrafts, For bird baths, ponds, and fountains, Flat, metal, rubberized and granulated roof repairs and leaks, Foundations, gravel stops, asphalt shingles, and overlapped seams, And, much more.