TROPICAL ROOFING PRODUCTS™ #100 Plastic Roof Cement is a multi-purpose heavy consistency Plastic Cement for repairing leaks, cracked spots, holes in shingles, concrete and steel or metal roofs. #100 can be used on flashings around skylights, gutters, and in most crevices. #100 is ready to use as it comes out of the pail and can be applied with a trowel or knife. #100 readily adheres to most prepared surfaces and will not sag, slip, or mud crack, and will remain highly resilient and durable through all seasons. Apply at a minimum rate of 40 linear ft. per gallon with 4™ wide 1/8™ thick application.