do you have to apply on both sides of the seam or just one side? also if it's one side, is it the inside or outside? thanks!

Hello, Thank you for the question. For the best seal I would recommend applying to both sides. Apply one side allow it to dry and then apply the opposite side. Please let us know if we can further help in any way. Thank you, Justin J. HouseofScuba

How many tubes would be needed to seal a 2-person sil nylon tarp? It has a ridge seam and two "gable end" seams.

One tube should do the job, unless you really goop it on thick and heavy. I have been working on a rainfly for a 4-person tent. It has many seams so I had to get a second tube. A two-person, simple tarp should pose no problems to cover with a single tube, IMHO.

Will this work on an older tent to seal the seams?

Hello Buzz, This sealant is designed to seal up seams coated in silicone which occurs on most tents. I would double check that your tent has silicone treated seams but it most likely would work without any issues. Please let us know if we can further help in any way. Thank you, Joe P. HouseofScuba

Can I use this to adhere screen mesh to patch a 4 inch hole in the mesh portion of a lightweight tent?

I think it would work fine. Down side is that there is not as much surface area for the adhesive to bond to. I personally would hand stitch the patch to the screen and then go over the stitching and the overlapping portion (border) of the patch with the Seam Grip.

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

Product ID: 3715878

Details

Brand
GEAR AID
Item Weight
1.92 ounces
Item dimensions L x W x H
4.88 x 1.05 x
Material
Silicone
Style
Sealant 1.5 Oz

💧100% waterproof, flexible seal

🌡️Resists extreme heat & cold

🛠️Seals up to 24 ft seams

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Description

💪 Seal the deal on adventure-proof gear!

EXTREME WEATHER READY - Maintains a flexible, elastic bond that won’t crack or peel, even under harsh heat or freezing cold.
INVISIBLE YET DURABLE - Clear adhesive that blends seamlessly with your gear, preserving aesthetics while delivering rugged performance.
TRUSTED BY OUTDOOR PROS - Backed by a 2-year warranty and a 4.6-star rating from 1,600+ users—join the community that never compromises.
ULTRA LIGHT GEAR COMPATIBLE - Perfect for silnylon tents, backpacks, tarps, and rainwear—keep your lightweight essentials dry and durable.
LONG LASTING SEAM PROTECTION - Seal up to 24 feet of silicone-treated fabric with just 1.5 oz—max efficiency for your gear.

Seam Grip SIL Silicone Tent Sealant is a premium 1.5 oz clear adhesive designed to create a permanent, flexible, and waterproof seal on silicone-treated fabrics like silnylon tents and backpacks. It withstands extreme temperatures without cracking or peeling, ensuring long-lasting protection for ultra-light outdoor gear. Ideal for tents, tarps, and rainwear, it offers up to 24 feet of seam sealing and comes with a 2-year warranty, trusted by thousands of outdoor enthusiasts.

Specifications

ASIN	B0009RP8HO
Best Sellers Rank	#11,946 in Automotive ( See Top 100 in Automotive ) #4 in Silicone Sealers #618 in Oils & Fluids
Brand Name	GEAR AID
Color	Clear
Compatible Material	Silicone-treated Fabrics
Customer Reviews	4.6 4.6 out of 5 stars (1,600)
Global Trade Identification Number	00021563104400
Included Components	Seam Grip+Silicone Tent Sealer
Item Dimensions	4.88 x 1.05 x 8.01 inches
Item Form	Gel, Liquid, Paste
Item Type Name	Silicone Sealant
Item Weight	1.92 ounces
Manufacturer	GEAR AID
Material Type	Silicone
Model	10440
Number of Items	1
Part Number	10440
Style Name	Sealant 1.5 Oz
Surface Recommendation	Fabric
UPC	731673036149 021563104400
Unit Count	1.5 Ounce
Warranty Description	2 Year Warranty
Water Resistance Level	Waterproof

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€ 16.83

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In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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