Gear Aid Seam Grip FC is a fast-curing, water-based tent seam sealer. Previously known as Seam Sure, this waterproofing sealant comes in a 2 fl oz bottle and seals up to 60 ft of seams or fabric. The liquid formula is perfect for family-sized tents, tarps and pop-ups made of nylon. Just apply a thin film to the inside seams and allow to dry to a clear, flexible seal. Don’t let rain ruin an outdoor experience. Seal and waterproof tent seams in no time with Seam Sure FC and stop leaks before they happen.


  • Long-lasting
  • Fast Acting
  • Waterproof
  • Flexible
  • Seals nylon, polyester, vinyl, canvas and other outdoor fabrics


Material: water-based urethane
Size: 2 fl oz
Color: clear
Adheres To: nylon, canvas, polyester, vinyl and most fabrics
Coverage: 720” x 0.25” (60 ft of seams)
Cure time: 2 hours
Cure method: humidity
Application Temperature: 60° to 100°F
Use Temperature: -20° to 180°F
Storage: store in cool, dry place
Freeze-Thaw Stable: no

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