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⚓ Seal the deal with marine-grade strength and style!
Sika Sikaflex 291i is a high-performance, moisture-curing polyurethane sealant and adhesive tailored for marine use. Its superior elasticity and resistance to water, chemicals, and vibrations make it ideal for internal boat sealing and repairs. Compatible with multiple materials and available in customizable colors, this 70ml mini cartridge delivers professional-grade durability and precision application.
| ASIN | B00UN3UNL0 |
| Best Sellers Rank | 2,980 in DIY & Tools ( See Top 100 in DIY & Tools ) 72 in Sealers |
| Brand | Sika |
| Colour | Black |
| Compatible Material | Metal, Wood, Plastic, Frame |
| Container Type | Tube |
| Country Of Origin | Switzerland |
| Customer Reviews | 4.4 out of 5 stars 146 Reviews |
| Full Cure Time | 48 Hours |
| Included Components | 1x Cartridge |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Type Name | Sealant and Adhesive |
| Item Volume | 70 Millilitres |
| Item Weight | 0.1 Grams |
| Item form | Paste |
| Manufacturer | Sika Everbuild |
| Manufacturer Part Number | 9091567 |
| Material | Polyurethane |
| Model Number | 291i |
| Other Special Features of the Product | Marine-Specific Resistance and High Elasticity |
| Special feature | Marine-Specific Resistance and High Elasticity |
| Specific Uses For Product | Marine |
| Specific uses for product | Marine |
| Unit Count | 70.0 millilitre |
| Viscosity Level | High |
| Water Resistance Level | Water Resistant |
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.
T**Y
Perfect
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.
I**N
Sticks like you wouldn't believe.
Product is great. Amazon prime next day delivery is abismal. If the courier doesn't want to deliver it next day it just doesn't matter to Amazon. Why would anyone use DPD?
T**.
Awkward to use
Good product, but I will be using a gun in future. I found it really awkward to use
G**D
Waterproof sealant
Taking great care with surface preparation the sealant seems to make a waterproof seal. It's early days however. If it does work the cost is justified.
M**M
70 ml only, comes in a soft tube.
This product is not what I've expected. Image shows tube similar to standard silicone tube. My fault I have not read tittle that clearly says 70 ml. Also there is no instruction on how to use unusual container it comes in . Anyway beside these issue we have used it to seal our leaking garage roof. Worked well it's list really small for the price in my opinion.
M**E
SikaFlex Sealant
Can't really add much to the accolades this product already has. It was bought because of its size. It's small enough to seal those small areas where a bigger tube nozzle would be awkward to use. I've tried other sealants but I always come back to SikaFlex. I think that says it all.
H**R
Juste ce qu'il me fallait
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
Es ist das beste
Das hat wunderbar Funktioniert, alles ist Dicht geworden
Trustpilot
1 day ago
1 week ago