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โ Seal your marine projects with confidenceโbecause your boat deserves the best!
Sika Sikaflex 291i is a professional-grade, solvent-free polyurethane sealant and adhesive designed specifically for marine applications. This 70ml mini cartridge offers high elasticity, excellent adhesion to multiple materials, and superior resistance to water and harsh chemicals, making it the go-to choice for boat maintenance and repairs. Its quick curing time and customizable color options ensure a durable, clean finish that stands up to the toughest marine environments.















| ASIN | B00U2JM36S |
| Best Sellers Rank | 2,831 in DIY & Tools ( See Top 100 in DIY & Tools ) 74 in Sealers |
| Brand | Sika |
| Colour | white( ) |
| Compatible Material | Ceramic, Metal, Plastic, Wood |
| Container Type | Cartridge |
| Country Of Origin | Switzerland |
| Customer Reviews | 4.6 4.6 out of 5 stars (873) |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 07612895195995 |
| Included Components | 1x Cartridge |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | Sealant and Adhesive |
| Item Volume | 70 Millilitres |
| Item Weight | 0.45 Grams |
| Manufacturer | Sika Everbuild |
| Manufacturer Contact Information | Sika Everbuild 41 Knowsthorpe Way, Leeds LS9 0SW |
| Material | Polyurethane |
| Model Number | 291 |
| Other Special Features of the Product | Strong |
| Specific Uses For Product | Marine applications |
| Tensile Strength | 261.07 Pounds Per Square Inch |
| Unit Count | 70.0 millilitre |
| Viscosity | hochviskos |
| Water Resistance Level | Water Resistant |
K**S
Fix hatch on my kayak
Tube was easy to use in my application gun and spreads pretty good nice and smooth. Very messy for hands so ensure you wear gloves you can throw away after use. It glues well to your hands and taking 2 days to fade lol. But seems to have done a good job fixing both of my hatches down onto my kayak. Had a slight leak in the seals thought I'd fix it in readiness for next season. I read great reviews and this is mentioned as the best as its designed for boats and has resistance to salt water and fresh all good, the adhesion to plastic was reviewed as really good on other Google review sites not amazon by the way. I've water tested my kayak with water around the seal a good finish no leaks then I chucked z good size bucket of water as a sort of pressure test gave it a good dowsing of water all good no leaks ... I'd tell anyone to buy its worth the extra money. How long will it last hoping few years, plenty left in the tube. Drying time not on the tube but reviews on a Google search said 24 hrs mine was curing in few hours and after 16hrs I was water testing it so its decent. Just messy be prepared to get this stuff in places you didn't want it. I applied a bit too much and white spirits helped clean up a bit. You don't need loads on lesson learnt the second hatch I fitted to my kayak I used less and its sealed well be aware when you apply force if doing a kayak excess Sealand also goes inside the kayak so I got it on my arms and hands without realising it had gone inside kayak hatch rim lol. Enjoy using it havd gun and if fitting to a kayak hatch like me it's good buy it just take it from me less is better.. Next time thin the amount out on kayak lip... im not a robot really used this gloop highly recommend if you need eater tight. Kev
W**Y
Marine grade
Great product, worked well
R**D
Super quality
I don't know how they managed to do it extra super quality but they really did it. Used it on cracks, perfect solution. Thank you!
M**T
OK for what I used it for.
I think this did the job, resealing the vapour membrane on BMW doo before refitting the door card. It's NOT an instant grab adhesive but seems to have worked. I left it to cure for 3 days before I fit the card. Only use if ambient temperature is greater than 10c for a few days.
F**E
Quality
Good product
A**Y
Good
Used to seal on some fixings to a transom...good stuff
A**S
Easy to use.
Easy to use and very effective thanks
T**E
Perfect
Perfect
C**N
Correspond ร la description Livraison rapide
H**R
Pour Coller une sonde au fond de mon kayak, c'est juste ce que j'avais besoin. Il n'en fallait pas plus.
A**G
Das hat wunderbar Funktioniert, alles ist Dicht geworden
E**O
ottimo
C**N
Rien a dire sikaflex grosse marque
Trustpilot
1 month ago
1 month ago