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.

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SIKA Sikaflex-291 LOT Marine Adhesive and Sealant, Black, 10.1 fl oz

SIKA Sikaflex-291 LOT Marine Adhesive and Sealant, Black, 10.1 fl oz

Product ID: 26693033

Details

Brand
SIKA
Item Form
Paste
Material
1-C
Special Feature
Water
Specific Uses For Product
Marine

🌊Marine-grade durability

🖤Paintable black finish

⚙️One-component easy application

KD 9.00

Duties & taxes included

In stock

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Description

🛥️ Seal the deal with marine-grade confidence!

EFFORTLESS APPLICATION - Compatible with manual, pneumatic, or electric piston guns for precise, mess-free use.
ULTIMATE MARINE BONDING - Adheres flawlessly to wood, fiberglass, and metal for unbeatable marine construction strength.
PROFESSIONAL FINISH READY - Cures in 24 hours, sands and paints easily for a sleek, polished look every time.
FLEXIBLE VIBRATION RESISTANT - Highly elastic formula ensures long-lasting seals that absorb shocks and vibrations.
WEATHERPROOF WATER RESISTANT - Resists fresh and seawater, diluted acids, and oils—built to endure the harshest environments.

SIKA Sikaflex-291 LOT is a black, one-component polyurethane marine adhesive and sealant designed for superior bonding on wood, fiberglass, and metal. It offers exceptional resistance to fresh and seawater, acids, and oils, cures in 24 hours, and can be painted or sanded without losing stability. Ideal for above and below waterline applications, it delivers durable, vibration-resistant seals with easy application via piston guns.

Specifications

ASIN	B00C50GIQI
Best Sellers Rank	#26,573 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #14 in Polyurethane Adhesives #56 in Urethane Adhesives
Brand Name	SIKA
Color	Black
Compatible Material	Fiberglass, Metal, Wood
Container Type	Cartridge
Customer Reviews	4.6 4.6 out of 5 stars (365)
Full Cure Time	24 hours
Included Components	Sealant
Item Form	Paste
Item Package Quantity	1
Item Type Name	Adhesive
Item Weight	10.1 ounces
Manufacturer	Sika USA
Material Type	1-C polyurethane
Model	90927
Number of Pieces	1
Other Special Features of the Product	Water Resistant
Part Number	90927
Specific Uses For Product	Marine, Underwater
UPC	033886005289
Unit Count	10.1 Fluid Ounces
Viscosity Level	Medium to High
Volume	10.1 fluid ounces
Warranty Description	Warranty
Water Resistance Level	Water Resistant

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