Flexmastic Caulk and Patch Sealant

Insulmastic

$ 0.99 

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Basic Description. 7518 is a solvent type, modified elastomeric brush/roller grade mastic formulated to provide weather resistance, flexibility and ease of application. Dries to a tough elastic water resistantsealer.7518 is also available in a fibered form - 7518 F. Uses: Used as a sealant and caulking for weatherproofing seams, joints and cracks for repairing roofs, flashings, vents, copings, drainpipes, eaves, skylights and parapet walls. Also used for cementing down loose shingle tabs, embedding glass, lubricating and sealing pipe threads. Limitation: Prolonged exposure to ponded water and direct sunlight will discolor 7518. For best results, use glass cloth re-enforcing mesh for trowel applications or in moving joints over 1/4" in width. Do not use in contact with polystyrene insulation. Physical Properties: Color - Black. Density - 1.25 kg per liter or 10.4lb. per U.S. gallon. Approximate coverage - 6mm (1/4") thickness - 68 kg per 10 square meters(140 lbs per 100 square feet), 3mm (1/8") thickness - 34 kg per 10 square meters (70 lbs per 100 square feet). Dry to Touch - Approximately 4 hours. Dry to Firm - 48 hours. Service Temperature - Upper limit 820C or 1800F. Shelf Life - Up to 24 months. Preparatory. Work surfaces must be sound, dry, clean and free from rust, loose paint, dust, dirt and grease.

  • Fantastic rubberized sealant for providing weather resistance, flexibility and ease of application
  • Caulk is used for weatherproofing seams, joints and cracks
  • Also fantastic for repairing roofs, flashings, vents, copings, drainpipes, eaves and more
  • Available as a single tube or as a pack of 12
  • Fast shipping from The Dirty Gardener

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