Seam Grip FC Fast Cure Seam Sealant
|Price:||$5.29 - $21.69|
|Sale:||Lower price available on select options|
- Long-Lasting – Water-based urethane sealant is unaffected by extreme temperatures
- Fast Repairs - Cures in 2 hours
- Flexible – Dries to a clear sealant that flexes with gear
- All-Purpose – Seals canvas, nylon, polyester, and vinyl fabrics
- Packaging may vary
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From the manufacturer
|Seam Grip FC Seam Sealant||Seam Grip WP Waterproof Sealant & Adhesive||Sea Grip TF Tent Fabric Sealant||Seam Grip SIL Silicone Tent Sealant|
|Cure Time||2 hours||8 hours||4 hours||6 hours|
|Coverage||60 ft||12 ft||85 sq ft||24 ft|
|Top Feature||Fast Cure||Permanent||Full coverage||Permanent|
|Primary Use||Nylon tents||Tents and gear||Tent floor and rainfly||Silnylon tents|
Seam Grip FC is a fast-curing, water-based tent seam sealer. One bottle of this waterproof sealant seals 60’ of seams – making it perfect for family-sized tents, tarps and pop-ups made of nylon and canvas. Just apply a thin film to the inside seams and allow to dry. Don’t let rain make you miserable on your next outdoor adventure. Seal and waterproof tent seams with Seam Sure FC and stop leaks before they happen.
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I had to pour the sealer into a bowl and apply with another brush. It took me 2 bottles and I was able to seal *most* seams in our 10x14 8 person tent and rainfly. I didn't have enough to get all seams, but I skipped those that seemed to be protected best by the fly.
This was a brand new tent, so while it didn't have taped seams, they shouldn't have been very worn.
We still had leaks through some of the window seams, etc.
I treated the inside seams with this, and the outside of the tent and fly with the 3M waterproof spray.
While either or both might have had some effect (I don't know what it would have been like had I not used either), even the both of them together couldn't provide a true water barrier.
Based on performance and the difficulty/time to apply this, I would say it isn't worth it.
The 3M spray has to be reapplied more often, but I would say a double coat of that sprayed on for rainy trips is probably easier and just as effective.
A complaint by others was that the 2 oz bottle did not seal an entire tent (size of their tent unmentioned). They also did not mention whether they used the (to me) inefficient brush on the bottle or a foam brush. For the record, I purchased a Wenzel Blue Ridge 14' x 9', 7-person family tent. I found that it required 3 bottles to sealer to barely cover all of the interior seams of this admittedly very large tent. In my case, I didn't have enough sealer left for sealing the rain fly but luckily discovered that Wenzel had taped the underside seams of its rain fly so I did not need a 4th or 5th bottle. I do agree with others, though, that it would be nice if Seam Sure was available in a larger bottle. Bottom Line: I recommend this product.
I applied it using a thin coat and was barely able to complete a 3 person tent and it's rain fly. Do not try to use the built-in brush because when you are inside the tent and try to brush the liquid on it will run down the bottle on to your hand, never even making it to the built in application brush. The solution I used was to cut down a paper cup and then use a small brush (like that used in crafts or to paint models) to apply small amounts of it to the seams (dipping the small paintbrush in the liquid I poured into the cup). You can better control the amount applied to make a thin coat. You can seal rainfly seams more easily by installing the rainfly upside down.
After it dried I closed up the tent, with the rainfly in place and misted it for a couple of hours with the hose (the nozzle of the hose was above the tent). The seams on the interior were dry. Then I adjusted the hose nozzle so that a heavy "rain" came down on the tent. After a couple of hours the seams on the interior were still dry. Then I adjusted the hose nozzle so that a driving "rain" came down on the tent (at an angle too). The interior seams were still dry. I guess the stuff works ok. I was told by an REI guy that an even better solution is available from the same manufacturer - the stuff that comes in a tube, because it is easier to apply.