Will this work to repair cracks in my pool skimmer? Is it elastic or hard like epoxy when cured?

It is elastomeric and should work well for that I would think. I used it to seal the roof seams on a 2015 GMC pickup and it worked great. Keep in mind it is self leveling so it spreads out a bit on its own.

Would this work for adhering rubber matting to a wooden and aluminum boat deck?

yes, it would work. A permanent solution would be 3M 5200 sealant. Try a small piece first!

can i use this to attach solar panels to camper roof? pnls weigh 24pnds.

I used mine for water proofing sealant while glueing down a metal flang which weighed very little. Not sure about the solar panels

Would this work in a swimming pool. I have a concrete pool that has plexiglass windows in the sides below the water level.

I believe so, we use it on the seams of our water slide that's underwater at all times.

Sikaflex 291 Lot Black 10 3 Oz Cartridge Marine Adhesive

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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$56.99

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Seal it like a pro, bond it for life!

HIGH VISCOSITY FORMULA - Easy to apply paste that stays put, ensuring precise sealing without mess.
COMPACT CARTRIDGE DESIGN - 10.3 oz. cartridge fits standard caulking guns for effortless, controlled application.
UNMATCHED WATER RESISTANCE - Keeps your projects dry and secure even in the harshest marine environments.
INDUSTRIAL STRENGTH ADHESION - Delivers a rock-solid bond on metal, plastic, and wood for long-lasting performance.
VERSATILE MARINE APPLICATION - Specifically engineered for boats and watercraft, trusted by professionals.

Sikaflex 291 LOT Black is a premium 10.3 oz. marine adhesive and sealant cartridge designed for superior water resistance and strong bonding on metal, plastic, and wood. With a high-viscosity paste formula, it ensures durable, mess-free application ideal for marine environments and professional-grade projects.

Specifications

Asin	B00C50GIQI
Best Sellers Rank	#190,053 in Car & Motorbike (See Top 100 in Car & Motorbike) #164 in Fillers, Adhesives & Sealants
Brand Name	SIKA
Compatible Material	Metal, Plastic, Wood
Container Type	Cartridge
Country Of Publication	USA
Customer Reviews	4.6 4.6 out of 5 stars (153) 4.6 out of 5 stars
Included Components	1
Item Form	Paste
Item Package Quantity	1
Item Weight	10.1 Ounces
Manufacturer	Sika
Manufacturer Part Number	90927
Model	90927
Number Of Pieces	1
Upc	033886005289
Viscosity Level	High
Volume	10.1 Fluid Ounces
Water Resistance Level	Water Resistant

Reviews

User

Works well

Works well, strong adhesion & hard cured coating

18.05.2026

User

Good product

Good product.

1.01.2026

User

This is worth every penny

Best stuff for outdoor applications

28.08.2026

User

Excelente artículo, lo volvería a comprar

Muy bueno, aunque debe saber que demora unas 48 horas para que seque bien y más si es muy grande el grosor que aplicó pero calidad extrema

29.07.2026

User

Used for wetsuits

Excellent product for gluing storage pockets onto wetsuits or for neoprene repair.

4.02.2026

User

On time

Great for the boat seams

21.12.2023

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TrustScore 4.5 | 7,300+ reviews

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$56.99

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Sikaflex 291 LOT Black 10.3 oz. Cartridge Marine Adhesive/Sealant

Details

Details

Description

Specifications

Reviews

Common Questions