---
product_id: 26693033
title: "Sikaflex-291 LOT Black, All-Purpose Marine Adhesive & Sealant, Elastic & Non-Corrosive - 10.1 fl. oz - Ideal for Wood, Fiberglass, Metal, Fresh & Saltwater Applications"
brand: "sika"
price: "108.43 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Sika"
url: https://www.desertcart.tn/products/26693033-sikaflex-291-lot-black-all-purpose-marine-adhesive-and-sealant
store_origin: TN
region: Tunisia
---

# Marine-grade water resistance Paintable & sandable black finish One-component easy application Sikaflex-291 LOT Black, All-Purpose Marine Adhesive & Sealant, Elastic & Non-Corrosive - 10.1 fl. oz - Ideal for Wood, Fiberglass, Metal, Fresh & Saltwater Applications

**Brand:** sika
**Price:** 108.43 DT
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the deal with Sikaflex-291 — where marine-grade meets millennial-grade finesse!

## Quick Answers

- **What is this?** Sikaflex-291 LOT Black, All-Purpose Marine Adhesive & Sealant, Elastic & Non-Corrosive - 10.1 fl. oz - Ideal for Wood, Fiberglass, Metal, Fresh & Saltwater Applications by sika
- **How much does it cost?** 108.43 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/26693033-sikaflex-291-lot-black-all-purpose-marine-adhesive-and-sealant)

## Best For

- sika enthusiasts

## Why This Product

- Trusted sika brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ultimate Marine Bonding Power:** Adheres flawlessly to wood, fiberglass, and metal for above & below waterline use
- • **Resistant to Fresh & Saltwater:** Withstands harsh marine environments plus diluted acids and oils without breaking down
- • **Trusted by Pros & DIYers Alike:** Highly rated with proven long-term hold on demanding projects, from boats to vintage cars
- • **Effortless Application & Finish:** One-component paste cures with moisture, self-levels, and accepts paint for a sleek look
- • **Elastic & Vibration-Resistant Seal:** Non-corrosive, flexible formula ensures durable joints even under stress

## Overview

Sikaflex-291 LOT is a premium black, one-component polyurethane marine adhesive and sealant designed for versatile use on wood, fiberglass, and metal. It offers superior elasticity, non-corrosive durability, and resistance to fresh and saltwater, curing upon exposure to moisture. Ideal for both above and below waterline applications, it self-levels for a smooth finish and can be painted or sanded without losing stability, making it the go-to choice for professionals and enthusiasts seeking reliable, long-lasting marine seals.

## Description

If you need a marine-grade sealant that creates a strong, secure bond with a wide array of surfaces commonly found in marine applications, Sikaflex-291 LOT's black sealant is the ideal choice. It's specially designed for use where a long working time is needed, and cooler temperatures can extend the curing period. The typical skinning period is four hours, after which it can be painted for a more professional finish. Sikaflex-291 LOT is a self-leveling marine grade sealant, so you won't need to tool it down for an even surface. 10.1 fl. oz. cartridges fit conveniently on a variety of piston guns.

Review: Good adhesive for a boating project - I used this to attach a heavy duty rub rail on my old BW Outrage (belt and suspenders approach, I didn't trust that the screws that came with the rub rail would work). It's been six months since I did the work and it seems to be holding well. Cures somewhat quickly which makes it tricky to use on a large area in summer heat. I'd use it again before the #M product.
Review: Easy to apply, looks like a good seal - I used it to seal between the body and the bottom pan of a 1970s VW Beetle I'm rebuilding. It'll take me months to find if the seal provided by this product is durable. But for now, it looks encouraging. Also, it is rated for "below the waterline", and that should be more than sufficient overkill for a Volkswagen. As I had to apply the sealant from below the car, it dripped a little bit but not badly. The product flows into place readily and can be smoothed, like caulk, with a gloved (!!!) finger. Go without gloves and have a very messy clean-up coming. The product dries to a deep glossy black. As it is paintable, I plan to spray the bottom of the car with undercoating for protection. The seals cured overnight and look confidence-inspiring.

## Features

- IDEAL FOR MARINE APPLICATIONS — Sika 291 adheres to material commonly used in marine construction, such as wood, fiberglass, metal, and metal primers and paint coatings. Use above or below water line
- VERSATILE AND DURABLE — It is non-corrosive and highly elastic making vibration-resistant joint seals on decking and can be used in an array of interior contexts
- FORMULATED FOR PERFORMANCE — This one-component polyurethane marine-grade sealant cures upon exposure to atmospheric moisture. The black sealant can be overpainted and sanded without loss of stability
- RESISTANT TO BOTH FRESH AND SEAWATER — Will also resist diluted acids and caustic solutions. Provides temporary resistance to fuels, mineral oils, and vegetable and animal fats
- EASY APPLICATION — Use a manual, pneumatic, or electric-driven piston gun to apply this one-component polyurethane paste. Surface should be clean and dry prior to application for optimal performance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00C50GIQI |
| Best Sellers Rank | #10,108 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #10 in Polyurethane Adhesives #25 in Urethane Adhesives |
| Brand | SIKA |
| Brand Name | SIKA |
| Color | Black |
| Compatible Material | Fiberglass, Metal, Wood |
| Container Type | Cartridge |
| Customer Reviews | 4.5 out of 5 stars 338 Reviews |
| Full Cure Time | 24 Hours |
| Included Components | Sealant |
| Item Form | Paste |
| Item Package Quantity | 1 |
| Item Type Name | Adhesive |
| Item Weight | 10.1 Ounces |
| Manufacturer | Sika USA |
| Material | 1-C polyurethane |
| Material Type | 1-C polyurethane |
| Model | 90927 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Water Resistant |
| Part Number | 90927 |
| Special Feature | Water Resistant |
| Specific Uses For Product | Marine, Underwater |
| UPC | 033886005289 |
| Unit Count | 10.1 Fluid Ounces |
| Viscosity Level | Medium to High |
| Volume | 10.1 Fluid Ounces |
| Warranty Description | Warranty |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** SIKA
- **Item Form:** Oz
- **Material:** 1-C polyurethane
- **Special Feature:** Water Resistant
- **Specific Uses For Product:** Marine, Underwater

## Images

![Sikaflex-291 LOT Black, All-Purpose Marine Adhesive & Sealant, Elastic & Non-Corrosive - 10.1 fl. oz - Ideal for Wood, Fiberglass, Metal, Fresh & Saltwater Applications - Image 1](https://m.media-amazon.com/images/I/51GrKuGzegL.jpg)

## Available Options

This product comes in different **Color, Size, Number Of Items** options.

## Questions & Answers

**Q: Will this work to repair cracks in my pool skimmer? Is it elastic or hard like epoxy when cured?**
A: 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.

**Q: Would this work for adhering rubber matting to a wooden and aluminum boat deck?**
A: yes, it would work. A permanent solution would be 3M 5200 sealant. Try a small piece first!

**Q: can i use this to attach solar panels to camper roof? pnls weigh 24pnds.**
A: I used mine for water proofing sealant while glueing down a metal flang which weighed very little. Not sure about the solar panels

**Q: Would this work in a swimming pool.  I have a concrete pool that has plexiglass windows in the sides below the water level.**
A: I believe so, we use it on the seams of our water slide that's underwater at all times.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good adhesive for a boating project
*by A***R on January 30, 2026*

I used this to attach a heavy duty rub rail on my old BW Outrage (belt and suspenders approach, I didn't trust that the screws that came with the rub rail would work). It's been six months since I did the work and it seems to be holding well. Cures somewhat quickly which makes it tricky to use on a large area in summer heat. I'd use it again before the #M product.

### ⭐⭐⭐⭐⭐ Easy to apply, looks like a good seal
*by B***D on March 2, 2024*

I used it to seal between the body and the bottom pan of a 1970s VW Beetle I'm rebuilding. It'll take me months to find if the seal provided by this product is durable. But for now, it looks encouraging. Also, it is rated for "below the waterline", and that should be more than sufficient overkill for a Volkswagen. As I had to apply the sealant from below the car, it dripped a little bit but not badly. The product flows into place readily and can be smoothed, like caulk, with a gloved (!!!) finger. Go without gloves and have a very messy clean-up coming. The product dries to a deep glossy black. As it is paintable, I plan to spray the bottom of the car with undercoating for protection. The seals cured overnight and look confidence-inspiring.

### ⭐⭐⭐⭐⭐ As expected
*by R***Y on December 18, 2025*

Works good.

## Frequently Bought Together

- Sika Sikaflex-291 LOT - General All-Purpose Adhesive and sealant, Black - Marine Use - Elastic and Non-Corrosive - 10.1 fl. oz.
- Sikaflex-291, Black, General All-Purpose Fast Cure Marine Adhesive and sealant. Polyurethane sealant for Boats, 10.1 fl. oz Cartridge

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-18*