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🖤 Seal it like a pro — sleek, strong, and ready for the waves!
Sikaflex 291 Black is a high-viscosity marine adhesive and sealant cartridge offering water resistance and strong bonding for glass, metal, and plastic surfaces. Ideal for above-waterline applications, it cures fully in 3 days to deliver a durable, flexible seal. Trusted by professionals, this 10.3 oz black silicone paste is perfect for precise, long-lasting marine repairs.
| ASIN | B00C501KD4 |
| Best Sellers Rank | 1,187,430 in DIY & Tools ( See Top 100 in DIY & Tools ) 8,203 in Sealers |
| Brand | Sika |
| Colour | Black |
| Compatible Material | Glass, Metal, Plastic |
| Container Type | Cartridge |
| Customer Reviews | 4.3 4.3 out of 5 stars (469) |
| Full Cure Time | 3 Days |
| Global Trade Identification Number | 00033886005272 |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Volume | 10.1 Fluid Ounces |
| Item Weight | 10.1 Ounces |
| Manufacturer | Sika |
| Material | Silicone |
| Model Number | 90923 |
| Other Special Features of the Product | Water Resistant |
| Specific Uses For Product | Marine |
| UPC | 033886005272 |
| Unit Count | 300.0 millilitre |
| Viscosity | High Viscosity Paste |
| Water Resistance Level | Water Resistant |
B**R
I bought this Sika 291 to repair an aluminum canoe. This marine urethane is basically the same thing that SportsPal sells in their repair kit. I haven't used it yet but based on other reviews it will be fine for the repair I set out to accomplish Regarding other reviewers stating they received out of date or wrong colour product, I ordered black and got black and the use by date was 9 months into the future (July 2025) beyond my purchase date Nov/2024.
R**W
Each type of caulk has its own purpose and this is not structural quite obviously. I like the fact that It can be above or below the waterline but I would not ever use this below the waterline. As I suspected there are better ways; that said knowing that they don't have a problem with it being underwater makes me feel a lot better about it being above water on my deck. Acting as a sealant.
M**O
Works the way it should.
A**R
It has worked well but they sent me the wrong colour and hubby did not read it before opening it.
Y**B
Received very old, dry product with expiry date in only a few months. Typically these have several years of shelf life left.
Trustpilot
1 week ago
1 month ago