Henry PR300042 Plastic Roof Cement, Black, Liquid, Paste, 0.9 gal

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a high-grade mastic compound of asphalt and mineral fillers. This material is blended in proportions to assure maximum resistance to weathering while providing ease of application. A soft pliable material that gradually hardens to a durable and water-resistant seal. It sets firmly after application, yet retains is pliability over a period of years. For repairing leaks in asphalt, metal and composition roof surfaces. Used for waterproofing and on flashing where a heavy-duty product is required and as an emergency patching compound that provides good water resistance. Covers 12-1/2 sq-ft per gal applied 1/8 in THK.