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, White, Marine Adhesive and sealant, General All-Purpose PU Adhesive with Long Open time, 10.1 fl. oz

Sika Sikaflex-291 LOT, White, Marine Adhesive and sealant, General All-Purpose PU Adhesive with Long Open time, 10.1 fl. oz

Product ID: 19371902

Details

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

⏳Long open working time

⚓Marine-grade adhesion

💧Resistant to fresh & saltwater

NT$1228

Duties & taxes included

In stock

Sold byAmazon TaiwanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚓ Seal like a pro, last like a legend.

PAINT SAND READY - White finish cures smooth—overpaint or sand without losing strength or flexibility.
EXTENDED WORK WINDOW - 4+ hour skinning time lets you perfect every seal without rush.
DURABLE ELASTIC SEAL - Vibration-resistant, non-corrosive PU formula keeps joints intact under pressure.
EFFORTLESS APPLICATION - Compatible with manual, pneumatic, or electric piston guns for precision control.
UNMATCHED MARINE VERSATILITY - Bonds wood, fiberglass, metal—above & below waterline, no compromises.

Sika Sikaflex-291 LOT is a premium marine-grade polyurethane adhesive and sealant designed for superior bonding on wood, fiberglass, and metal surfaces. With a long open time and resistance to fresh and saltwater, it ensures durable, vibration-resistant seals that can be painted or sanded for a flawless finish. Ideal for demanding marine and interior applications, this 10.1 fl. oz cartridge delivers professional-grade performance with easy application.

Specifications

ASIN	B007H2R9SK
Best Sellers Rank	#20,632 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #14 in Polyurethane Adhesives #48 in Urethane Adhesives
Brand Name	SIKA
Color	White
Compatible Material	Polyurethane
Container Type	Cartridge
Customer Reviews	4.6 4.6 out of 5 stars (356)
Full Cure Time	24 hours
Global Trade Identification Number	00033886000758
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	90925
Number of Pieces	1
Other Special Features of the Product	Water Resistant
Part Number	90925
Specific Uses For Product	General All-Purpose, Interior, Marine
UPC	033886002707 338860007588 033886000758 033886000741
Unit Count	10.1 Fluid Ounces
Viscosity Level	Medium to High
Volume	300 ml
Warranty Description	Warranty
Water Resistance Level	Water Resistant

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