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Metal Sales Double Bead Butyl Tape Sealant 25-ft Roof Seam Tape
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Mastic butyl is designed to seal and prevent the entry of dust, air and moisture and assure a weather tight seal in metal building details
Resistant to ultraviolet and infrared radiations, precipitation atmospheric hydrocarbon contamination and extremes in temperature
Mastic butyl meets ASTM and federal standards, is non-staining and permanently flexible
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