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GEAR AID Seam Grip SIL Silicone Sealant for Silnylon Tents and Tarps

4.6 4.6 out of 5 stars 1,520 ratings
$9.95 $6.63 per Ounce
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Sealant 1.5 Oz
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Purchase options and add-ons

Brand GEAR AID
Specific Uses For Product Gear Aid SilNet Silicone Seam Sealer
Material Blend
Compatible Material Plastic
Item Form Oz

About this item

  • Seal up to 24 ft of seams with 1.5 oz of this durable, clear adhesive that bonds permanently to silicone-treated (silynylon) tents
  • Apply to ultra-light gear including silnylon backpacks; cures to a flexible, elastic seal that flexes and stretches with fabric
  • Creates a long-lasting, waterproof seal that won’t peel or crack over time; not affected by extreme heat or cold
  • Also ideal for applying on silnylon tarps, shelters, and rainwear to keep water out (previously known as SIL Net)
  • Packaging may vary
  • Sport type: Cycling
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GEAR AID Seam Grip SIL Silicone Sealant for Silnylon Tents and Tarps
$9.95 ($6.63/Ounce)
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GEAR AID Seam Grip WP Waterproof Sealant and Adhesive for Tents and Outdoor Fabric, Clear
$8.99
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Top Brand: GEAR AID

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From the manufacturer

Seam Grip WP Header
Seam Grip, Tent

BIKE
GEAR AID CHAMPIONS RENEWAL FOR THOSE WHO PLAY AND WORK OUTSIDE

Preservation, reuse, and the spirit of renewal is at the core of our mission and it’s why we have products you can use to fill that hole in your tent, patch up the leak in your waders, and clean the salt water out of your wetsuit. GEAR AID helps extend the life of your outdoor gear.

Silicone Tent Sealant

Adhesive

Seam Grip SIL is a sealant specifically designed for silicone treated fabrics, perfect for sealing silnylon tents, tarps and ultralight backpacks. A single 1.5 oz tube can seal up to 24 ft of seams, perfect for pinhole repairs and small tears, easy to use and weather-resistant. Keeps gear waterproof in extreme heat or cold.

  • Compatible – Bonds to silicone treated fabrics to prevent water from seeping through seams
  • Waterproof – Provides a water-tight seal that won’t peel or crack over time, keeping you warm and dry
  • Flexible – Cures to an elastic, rubber seal that flexes and stretches with high performance gear
  • Seam Grip SIL Silicone Tent Sealant will ONLY work on silicone-treated fabrics or sil-nylon.
Seam Grip WP
Seam Grip Sil Seam Grip SIl & Patches SIL large Seam Grip WP
Seam Grip SIL Silicone Tent Sealant Seam Grip SIL Silicone Tent Sealant & Silnylon Patches Tenacious Tape Silnylon Patches Seam Grip WP Sealant & Adhesive
Customer Reviews
4.6 out of 5 stars
1,520
4.6 out of 5 stars
1,520
4.3 out of 5 stars
745
4.6 out of 5 stars
3,964
Price $9.95 $18.22 $11.99 $8.99
Size (Oz) 1.5 1.5 & 3”x5” Patches (2) 1 & 8
Cure Time 6 hours 6 hours Instant 8-12 hours
Top Feature Seal seams and repair pinhole leaks in silnylon tents and tarps. Seal seams, patch holes and repair pinhole leaks in silnylon tents and tarps. Silicone-treated fabrics and materials including silpoly, nylon, vinyl, and even rubber. Use on ultralight backpacks, hammocks, stuff sacks, ponchos and sleeping bags. Seal seams and repair rips permanently in outdoor gear, includes application brushes.
Primary Use Silnylon Tents and Tarps Silnylon Tents and Tarps Silnylon Tents and Tarps Outdoor Synthetic Jackets, Tents & Tarps
Coverage 24 ft 24 ft 12 ft
For Use on Nylon Camping Gear (Tents, Mattresses, Sleeping Bags) ✓
For Use on Silnylon Gear ✓ ✓ ✓
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GEAR AID Seam Grip SIL Silicone Sealant for Silnylon Tents and Tarps

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Customer reviews

4.6 out of 5 stars
4.6 out of 5
1,520 global ratings

Customers say

Customers like the quality, flexibility, and ease of use of the bonding adhesive. For example, they mention it works well, is very flexible when dry, and is easy to apply. That said, opinions are mixed on durability, adhesion, and thickness.

AI-generated from the text of customer reviews

102 customers mention95 positive7 negative

Customers are satisfied with the quality of the bonding adhesive. They mention that it works well enough with just the included brush, and is dependable when it comes to seam protection. Some say that the silicone within the tube works great, and it works to patch up punctures and seams in your hiking. Overall, most are happy with the product's quality and performance.

"...I think she used 3 tubes on a 20 by 10 foot canopy top. Stuff really works, saved a $300 heavy duty canopy." Read more

"...But what matters most, the tent no longer leaks!..." Read more

"...But the fix held well. No leaks in the tent this time.Great product that I'll use a lot now...." Read more

"...bottle to avoid a mess and using a ton of this seamseal, but it works well enough with just the included brush." Read more

46 customers mention37 positive9 negative

Customers find the product easy to apply. They say it's a simple project that any DIYer can tackle. They also say it holds up well and goes on smooth.

"This is just barely enough for a simple 2 man tent. It does apply very easily but found it easier to use my finger then the paint brush that is..." Read more

"...It applied smoothly and evenly along the seams. There are YouTube videos that will demonstrate how to mix and apply this type sealant...." Read more

"This was easy to apply to my Hammock Gear silpoly tarp." Read more

"...I purchased two tubes of it to reseal my MSR Hubba Hubba. Went on easy and kept all the water out as intended, saving me hundreds over buying a new..." Read more

19 customers mention16 positive3 negative

Customers like the leakage of the product. They mention that it stops the rain from leaking or seeping through the stitched seam.

"...We got some heavy rain that week and it didn't leak a drop anywhere.I think she used 3 tubes on a 20 by 10 foot canopy top...." Read more

"...But the fix held well. No leaks in the tent this time.Great product that I'll use a lot now...." Read more

"...Sealed my Warbonnet SuperFly tarp's seem from the inside and didn't leak when it rained. I would use this product again." Read more

"...Feels rubbery when dry. No leaks so far." Read more

11 customers mention11 positive0 negative

Customers appreciate the value of the sports gear.

"...I do plan on using this same product on my next tent as it's the best value and gets good reviews." Read more

"Best price and a must have for Black Diamond Beta Light and Mega Light tents. Used for high end silicone based tent material and tarp material...." Read more

"best value for $" Read more

"Maybe it will help more with a different project. Seems expensive and a good product. I ripped a hole in my vinyl roof of the car port." Read more

9 customers mention9 positive0 negative

Customers like the flexibility of the bonding adhesive. They mention that it is very flexible when dry, and that it loosens up and settles into the seams.

"...Great product that I'll use a lot now. The SILNET stays flexible and should hold up well to the scouts abuse." Read more

"...Amazing adhesion and flexibility." Read more

"...It's very flexible and waterproof, and sticks well to silnylon. Like all sealers, it's a little tacky after it dries...." Read more

"This stuff makes a nice, flexible, rubbery film over the seams.This tube did one backpacking tent for me...." Read more

35 customers mention22 positive13 negative

Customers are mixed about the durability of the bonding adhesive. Some mention it's water proof, keeps them dry, and is a tough waterproof seam sealer. However, others say that it stays a bit tacky after it dries, and peels off along every seam.

"...I have purchased this sealer 3x. It produces a reliable durable waterproof seal." Read more

"...nights of heavy rains and winds with thunderstorms and stayed dry and cozy all night...." Read more

"...The interior seam taping had completely failed, it was peeling off along every seam of the rain fly...." Read more

"...Went on easy and kept all the water out as intended, saving me hundreds over buying a new tent." Read more

19 customers mention13 positive6 negative

Customers are mixed about the adhesion of the product. Some mention that it adheres well to tents rain fly and silicone treated materials, while others say that it sticks like crazy to all kinds of stuff. Some customers also mention that the product is not a strong adhesive and is still a bit sticky after drying.

"...Amazing adhesion and flexibility." Read more

"...It's very flexible and waterproof, and sticks well to silnylon. Like all sealers, it's a little tacky after it dries...." Read more

"...after curing it was not sticky and did not stick when folding the tarp. This stop the rain from leaking or seeping threw the stitched seam...." Read more

"...go with a 50:50 ratio of sealant to mineral spirits as it still seemed a bit sticky and hard to apply neatly. Took about two days to fully cure out...." Read more

16 customers mention5 positive11 negative

Customers have mixed opinions about the thickness of the product. Some find it thick and easy to use, while others say it's not very thick and needs thinning for practical use.

"...This stuff is not very thick...pretty runny, but just thick enough to work with if you're careful and don't try to apply too much at once...." Read more

"...It's just a bit too thick to spread quickly and smoothly...." Read more

"...It worked great, applied relatively easily and dried thin, smooth and clear...." Read more

"...One review states its too thick to get a nice even coat. That is correct...." Read more

Sealed up my cheap tent
5 Stars
Sealed up my cheap tent
I used this to seal up my cheap tent that had a few leaks. It was easy to use and was plenty to do the whole 2 man tent and had some left over. I put it on a little heavier than the instructions said. Feels rubbery when dry. No leaks so far.
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Top reviews from the United States

jeff a
5.0 out of 5 stars It works
Reviewed in the United States on April 25, 2024
Style: Sealant 1.5 OzVerified Purchase
My girlfriend has a big canopy tent that's probably 20 years old that gets used for a week every year that started to leak in several places and I got her this stuff to try and salvage the canopy fabric. She resealed the stitching both sides of every seam and it absolutely worked. We got some heavy rain that week and it didn't leak a drop anywhere.I think she used 3 tubes on a 20 by 10 foot canopy top. Stuff really works, saved a $300 heavy duty canopy.
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Wilson
5.0 out of 5 stars Turned a badly leaking tent into a dry tent
Reviewed in the United States on March 1, 2023
Style: Sealant 1.5 OzVerified Purchase
I used this to make repairs to an older, badly leaking, tent: a Nemo Losi 3P, about 8yrs old, I think. The interior seam taping had completely failed, it was peeling off along every seam of the rain fly. When the tent was sprayed with a garden hose, it was leaking badly along the full length of every seam - it seemed like it was raining inside.

I set up the tent in a covered area and used a small brush to "paint" the Seam Grip on the exterior of all of the rain fly seams. This took a long time. I was as careful as I could be, but it still doesn't look quite "factory" or exactly professional looking. But what matters most, the tent no longer leaks! This was a fairly expensive tent when new, and it would have been a shame to discard it - but it lives again - thanks to a couple dollars and a little effort. The cost of the Seam Grip was money well spent.

There were also some velcro straps which attach the rain fly to the tent poles. The velcro was originally glued to the inside of the rainly but the glue had deteriorated and the straps detached. I attemped to use Seam Grip to re-attach the straps but it just didn't hold. So from my perspective, the Seam Grip did a much better job waterproofing than it did "gripping". It might be best to have these straps attached for high wind conditions, but for most other situations they don't seem critical.
4 people found this helpful
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Matt H.
4.0 out of 5 stars Make sure you get enough.
Reviewed in the United States on March 20, 2018
Style: Sealant 1.5 OzVerified Purchase
This is just barely enough for a simple 2 man tent. It does apply very easily but found it easier to use my finger then the paint brush that is included. If you have a large two-man tent or bigger, you will need multiple tubes. You will also want to make sure that once it is applied and dried, that you do not rub against it. Although I have not had an issue with it yet, I can see how it could get rubbed off with typical wear overtime. It did however keep the water from coming in the tent and served its purpose.
6 people found this helpful
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Ryan K
5.0 out of 5 stars Scouts...can't teach 'em, can't beat 'em either. (Totally kidding here)
Reviewed in the United States on August 29, 2014
Style: Sealant 1.5 OzVerified Purchase
Doesn't matter how many times you tell them. Knives don't belong near tents. Neither does fire, but that was a previous lesson. Don't play with your knife around the tent I told them...over and over and over again.

Somehow while a scout was teaching another scout how throw his knife during free time (No, no one was hurt miraculously) it bounced up off the stump, did a mid-air turn much like a UFO or a certain "magic bullet" and flew towards the tent. Luckily it climbed in altitude and just skimmed over the rain fly. So they fearing the wrath of the leader getting on their case, didn't tell anyone as it just missed the tent.

Well irony is not without a sense of humor it seems. That night while we were all sleeping the heavens opened and it rained. Then it rained harder and harder until morning. It just so happens the two scouts involved in the knife incident were sleeping right underneath the supposed "near miss". They woke up soaked. Through their lack on tying the rain fly out to the trees or stakes, the water would pool and run right into the surgical tear in the tent and rain fly.

Lucky for them that was the only day it rained and they got all their stuff dried out. I was ready to right the tent off as a loss as many tents before it. Then a quick search on google turned up this product and an awesome video. I ordered it right away and two days later, thanks to my Prime account, I was ready to play. I used some packing tape to hold the cut together and slathered this on the other side about an 1/8" thick extending beyond each side of the tear by 1/4". I let it dry for 24 hours. Seemed to work nicely.

Now for the other side. I removed the packing tape and then repeated the process on the tape side and let it dry for 24 hours. I used a little baby/talcum powder to put on the silicone fix to get rid of the tackiness before I folded up the rain fly. 3 weeks later we used the tent on a campout and it rained on us again. But the fix held well. No leaks in the tent this time.

Great product that I'll use a lot now. The SILNET stays flexible and should hold up well to the scouts abuse.
45 people found this helpful
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L.F.
5.0 out of 5 stars Messy, but works great
Reviewed in the United States on January 18, 2024
Style: Sealant 1.5 OzVerified Purchase
Its probably wise to use some sort of thinner and have a small syrenge style bottle to avoid a mess and using a ton of this seamseal, but it works well enough with just the included brush.
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Al
5.0 out of 5 stars Works well
Reviewed in the United States on October 2, 2023
Style: Sealant 1.5 OzVerified Purchase
It is tedious to water proof seams, but it is a necessity. I have purchased this sealer 3x. It produces a reliable durable waterproof seal.
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Nolan Smith
5.0 out of 5 stars Seals anything with a great rubbery texture!!!
Reviewed in the United States on January 11, 2024
Style: Sealant 1.5 OzVerified Purchase
Saved an old backpacking tent. Waterproofed the bottom of an old backpack we were using for outdoors... overall it's amazing. Buy this stuff.
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Amazon Customer
3.0 out of 5 stars Application is fine using brush and patience.
Reviewed in the United States on December 13, 2023
Style: Sealant 1.5 OzVerified Purchase
Nice and with brush, yet both styles are to expensive, period!
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Top reviews from other countries

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Charles Lamoureux
5.0 out of 5 stars Excellent scellent
Reviewed in Canada on January 10, 2024
Style: Sealant 1.5 OzVerified Purchase
Très bonne qualité!
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Francisco D.
5.0 out of 5 stars Excelente
Reviewed in Mexico on March 9, 2024
Style: Sealant 1.5 OzVerified Purchase
Excelente
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Hedin
5.0 out of 5 stars Indispensable
Reviewed in France on December 7, 2023
Style: Sealant 1.5 OzVerified Purchase
Indispensable pour réparer l'usure de mes chaussures de rando et de mes baskets gortex.
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Brenda
5.0 out of 5 stars Works well , easy to apply .
Reviewed in the United Kingdom on August 17, 2023
Style: Sealant 1.5 OzVerified Purchase
I Sealed my leaking plastic outdoor chair covers with this product . Purchased the recommended applicators and found it easy to apply to the seams
They are now waterproof .
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Brenda
5.0 out of 5 stars Works well , easy to apply .
Reviewed in the United Kingdom on August 17, 2023
I Sealed my leaking plastic outdoor chair covers with this product . Purchased the recommended applicators and found it easy to apply to the seams
They are now waterproof .
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Pablo García
5.0 out of 5 stars Se aplica con gran facilidad
Reviewed in Spain on March 18, 2023
Style: Sealant 1.5 OzVerified Purchase
He reparado una tienda de campaña con el sellante pasado por los años. Para aplicarlo facilmente monté el doble techo al revés y aplicaba el producto con el pincel desde un tapón de botella de agua. Pinceladas en ambos sentidos de 10 cm y repaso sin presión arrastrando el pincel cada 50. Sólo escurrió un poco en algún despiste. Para 9 m de costura gasté un 60%. El resto me lo llevo para posible reparación en Yosemite.
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Pablo García
5.0 out of 5 stars Se aplica con gran facilidad
Reviewed in Spain on March 18, 2023
He reparado una tienda de campaña con el sellante pasado por los años. Para aplicarlo facilmente monté el doble techo al revés y aplicaba el producto con el pincel desde un tapón de botella de agua. Pinceladas en ambos sentidos de 10 cm y repaso sin presión arrastrando el pincel cada 50. Sólo escurrió un poco en algún despiste. Para 9 m de costura gasté un 60%. El resto me lo llevo para posible reparación en Yosemite.
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