ExpandoThane™ is used for a Protective Roof Coating, Specialty WaterProof Coating and any areas needing a high build Waterproof Coating. It is a VOC free Plural component hybrid with micro blowing agents to create a hard skin that expands five to seven times its volume to span gaps and fill bug holes. It may be applied directly over existing roof substrates such as metal, modified bitumen, BUR, CONCRETE, EPDM, TPO, and spray urethane foam. It also makes a great waterproof membrane for foundation walls.
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The Expandothane Roofing System is one of the most advanced high-pressure sprayed in place expanding coatings available on the market today. Proven to withstand UV damage, hail, and even a gunshot without damage, it is perfectly complemented by a 100% silicone top coating, SeamLess Seal Ultra to form a complete waterproof roofing system for new and retrofit construction.