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⚓ Seal your boat like a pro — don’t let leaks sink your vibe!
Sika Sikaflex 291i is a solvent-free, 1-component polyurethane marine sealant and adhesive designed for internal boat repairs. Its highly elastic, moisture-curing formula offers strong adhesion across multiple surfaces and resists fresh and seawater, acids, and other harsh substances. Available in a convenient 70ml mini cartridge, it cures to a durable, paintable finish within 48 hours, making it the go-to choice for professional-grade marine maintenance.
| ASIN | B00UN3UNL0 |
| ASIN | B00UN3UNL0 |
| Batteries Required? | No |
| Best Sellers Rank | #179,197 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #7,856 in Hardware Adhesives & Sealers |
| Color | Black |
| Customer Reviews | 4.3 4.3 out of 5 stars (128) |
| Customer reviews | 4.3 4.3 out of 5 stars (128) |
| Date First Available | 19 May 2015 |
| Date First Available | 19 May 2015 |
| Included components | 1x Cartridge |
| Item Package Quantity | 1 |
| Item Weight | 0.1 g |
| Item model number | 291i |
| Item model number | 291i |
| Manufacturer | Sika Everbuild |
| Manufacturer | Sika Everbuild |
| Material | Polyurethane |
| Part number | 9091567 |
| Product Dimensions | 5 x 5 x 23 cm; 0.1 g |
| Product Dimensions | 5 x 5 x 23 cm; 0.1 g |
| Size | Colour : Black |
| Special Features | High Elasticity, Marine-Specific, Resistant to Various Substances |
| Specific uses | Boat Sealing, Marine Repair, Multi-Surface Bonding |
| Style | 70 ml Mini Tube (Does not require an application gun) |
| Volume | 70 Milliliters |
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
R**D
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!
T**Y
I used this while fitting a fish finder transducer to the transom of my little rib and it works a treat to seal up the holes and stop water ingress into the wood. Its great stuff, expensive but worth it. Having seen a few people who use bathroom silicone on their boats and then seen how the boats ended up getting damage over a short period, I would strongly recommend not being cheap and getting the proper stuff which this sikaflex is.
T**R
I used it to put the seal back onto my Fitbit watch which had come away in the heat and keep it waterproof and the jewellers wanted £70 to fix so bargain of the year
Trustpilot
1 month ago
1 week ago