USE FOR – Flat Roofs, Metal Roofs, sloped roofs, planter boxes, foundations, ponds, sheds, basements, metal, wood, concrete and more EASY TO APPLY – Just like painting! Apply by brush or roller. Use heavy coats to build up the waterproof membrane. You can close the container and use later if you have left over material ENVIRONMENTALLY FRIENDLY – Liquid Rubber Waterproof Sealant/Coating is water based, containing no solvents, VOC’s or harmful odors. Safe for humans and pets alike, can be used indoors and outdoors with no special breathing apparatus COVERAGE – Vertical Surfaces – 1 gallon/30 sq ft (2.8 sq m). 3-4 heavy coats to achieve a 30 mil (0.76 mm) membrane. Flat/Ponding Surfaces – 1 gallon/15 sq ft (1.4 sq m). 4-5 heavy coats to achieve a 60-80 mil (1.5-2 mm) membrane APPLICATION – Do not apply in wet conditions or within 24 hours of rain. Apply to a dry surface, free of dirt, loose flaky paint and coatings, oil, grease, silicone, coal tar or other contaminants. Typically cures within 24-48 hrs!