Welcome to our guide on liquid seam seal and adhesive.

Liquid seam seal is a flexible, waterproof glue that fills stitching holes, reinforces seams and helps keep gear weather-resistant. It’s important to use the right liquid seal or adhesive on your garment, and this depends on the item and what fabric it is made of. See the table below to match your gear with the right sealants and adhesives.

Which seam sealant do I need?

Product	For use on	Cure time	Description	Adheres to
Tent Sealant – Seam Grip + FC	PU coated tents Tarps	2 hrs	A fast curing, clear, flexible seal to fix leaks that will keep moisture out all year long.	Nylon Canvas Polyester Vinyl
Adhesive – Aquasure + FD	Drysuits Jackets Waders Inflatables	8–12 hrs	Aquasure FD is a clear, waterproof adhesive that quickly repairs rips, damage and failed seams on outdoor gear.	Neoprene Rubber Nylon Canvas Vinyl
Adhesive – Black Witch / Aquasure + Neo	Wetsuits Waterproof waders Neoprene booties & gloves Spray decks	20–30 minutes	Black Witch is a neoprene specific adhesive, ideal for repairing small nicks and failed seams on wetsuits or other neoprene items.	Neoprene Rubber Latex Leather Vinyl
Sealant & Adhesive – Seam Grip + WP	PU coated tents PU waterproof clothing TPU backpacks	8–12 hrs	A liquid alternative to seam tape. Perfect for re-sealing damaged seams or damage on PVC coated & PU fabrics, as well as failed glue and seams.	Nylon Canvas Vinyl
Seam Grip + SIL Silicone Tent Sealant	Silicone coated tents, tarps, bivy bags and other shelters	8–12 hours	A liquid alternative to seam tape, specifically for silicone coated items. Perfect for re-sealing damaged seams, small nicks and tears or failed glue and bonded areas.	Silicone treated fabrics

Coatings and specialised fabric

Sealants for PU-Coated Fabrics

A ‘PU coating’ is a protective layer made of polyurethane, popular for its durability and water-proofing. For sealing PU coated items we recommend Gear Aid Seam Grip + FC or Seam Grip + WP. The difference between the two is that Seam Grip + FC cures in around 2 hrs but isn’t as long lasting, Seam Grip + WP takes longer to cure but is a more permanent and hard-wearing seam sealer.

Sealants for Silicone-Coated Fabrics

Only silicone-based sealant will adhere to silicone-treated fabrics (such as silnylon and silpoly). In simple terms: only silicone sticks to silicone. Seam Grip + SIL is perfect for the job, it creates a flexible, waterproof seal that moves with lightweight fabrics.

Neoprene Repairs

To repair neoprene items Black Witch / Aquasure + Neo is great to use while out in the wild as it only takes 20-30 mins to cure. For a tougher repair that will last longer use Aquasure + FD