From the manufacturer

Seam Grip TF restores polyurethane coating to like-new condition with its built-in foam applicator brush. Treats up to 85 sq ft of material to prevent gear from leaking with only one 4 fl oz bottle. Waterproof, flexible, non-toxic, long-lasting and dries clear.

Restore polyurethane (PU) coating to like-new condition with Seam Grip TF. Previously known as Tent Sure, this clear sealant makes tent waterproofing hassle-free with its built-in foam applicator brush. Over time, the protective waterproofing on a tent floor, rain fly, or tarp wears out and begins to flake off. Easily apply Seam Grip TF to the fabric and treat up to 85 sq ft of material to prevent gear from leaking with only one 4 fl oz bottle. When a rainfly gets sticky or backpacks start delaminating, make them perform again with Seam Grip TF Tent Fabric Sealant. 

PLEASE NOTE:  Seam Grip TF will not work on silicone-treated fabrics or sil-nylon. Check out Seam Grip SIL Silicone Tent Sealant here.

Specifications

Material: Water-based urethane

Size: 4 fl oz

Color: Clear

Adheres to: Nylon, canvas, vinyl, polyester, and most fabrics

Coverage: 85 sq ft

Cure time: 4 Hrs

Application Temperature: 60° to 100°F

Use Temperature: -20° to 180°F

Freeze-Thaw Stable: No

Storage: Store in cool, dry place

Made in USA