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Sikaflex 291 LOT Black 300ml Cartridge Marine Adhesive/Sealant

Sikaflex 291 LOT Black 300ml Cartridge Marine Adhesive/Sealant

Q: 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.

Q: 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!

Q: 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

Q: 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.

4.4/5

Product ID: 754292004

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Details

Color
Black
Brand
SIKA
Item Weight
10.1 Ounces
Liquid Volume
10.1 Fluid
Full Cure Time
24 Hours

🌊Marine-grade adhesion

⚙️Durable, vibration-resistant seal

🛠️One-component easy application

Frequently Bought Together

Sika Sikaflex-291 LOT - General All-Purpose Adhesive and sealant, Black - Marine Use - Elastic and Non-Corrosive - 10.1 fl. oz.

Sikaflex-291, Black, General All-Purpose Fast Cure Marine Adhesive and sealant. Polyurethane sealant for Boats, 10.1 fl. oz Cartridge

Description

⚓ Seal your marine projects with confidence and style!

BUILT TO ENDURE - Non-corrosive, vibration-resistant seal that stands up to fresh & saltwater exposure ⚙️
PAINT READY FINISH - Cures to a sandable surface in just 4 hours—perfect for professional-grade results 🎨
EFFORTLESS APPLICATION - One-part polyurethane paste fits all piston guns for quick, mess-free use 🛠️
ULTIMATE MARINE BONDING - Adheres flawlessly to wood, fiberglass, metal & more—above or below waterline 🌊
FUEL CHEMICAL RESISTANT - Withstands dilute acids, fuels, oils, and fats—ideal for harsh marine environments ⛽

Sikaflex 291 LOT Black is a premium marine-grade polyurethane sealant designed for durable, vibration-resistant bonding on wood, fiberglass, metal, and more. It cures via air moisture, is paintable after 4 hours, and resists fresh and saltwater, fuels, and chemicals—making it the go-to sealant for professional marine applications.

Specifications

Brand	SIKA
Model Number	90927
Product Dimensions	35.56 x 5.08 x 5.08 cm; 286.33 g
Color	Black
Name List for Name Plates	Can
Material	Polyurethane
Laser Class	Water Resistant
Are Batteries Included	No
Item Weight	286 g

Have a Question? See What Others Asked

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

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

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

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

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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