---
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: "VT7781"
currency: VUV
in_stock: true
reviews_count: 13
category: "Sika"
url: https://www.desertcart.vu/products/26693033-sikaflex-291-lot-black-all-purpose-marine-adhesive-and-sealant
store_origin: VU
region: Vanuatu
---

# Water-resistant fresh & saltwater Paintable & sandable black finish 10.1 fl. oz cartridge fits standard guns 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:** VT7781
**Availability:** ✅ In Stock

## Summary

> 🛥️ Seal the deal with marine-grade strength and style!

## 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?** VT7781 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/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

- • **One-Component Ease:** Single-part polyurethane cures with moisture—no mixing, no fuss, just reliable bonding.
- • **Marine-Grade Mastery:** Adheres flawlessly to wood, fiberglass, metal, and primers—above or below waterline.
- • **Chemical & Fuel Resistance:** Stands strong against diluted acids, fuels, oils, and even animal fats—marine tough.
- • **Durable & Paintable Finish:** Black sealant sands smooth and accepts paint for a sleek, professional look.
- • **Elastic & Vibration-Resistant:** Non-corrosive, flexible seal that withstands movement and harsh marine conditions.

## Overview

SIKA Sikaflex-291 LOT is a premium 10.1 fl. oz marine adhesive and sealant designed for professional-grade bonding and sealing on wood, fiberglass, and metal surfaces. Its one-component polyurethane formula cures with atmospheric moisture, delivering a durable, elastic, and non-corrosive seal that resists fresh and saltwater, diluted acids, fuels, and oils. The black sealant is paintable and sandable, perfect for both above and below waterline applications, making it the go-to choice for marine and demanding industrial projects.

## 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: As expected - Works good.
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 | #37,500 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #15 in Polyurethane Adhesives #55 in Urethane Adhesives |
| Brand | SIKA |
| Color | Black |
| Date First Available | August 26, 2009 |
| Full Cure Time | 24 Hours |
| Is Discontinued By Manufacturer | No |
| Item Form | Oz |
| Item Package Quantity | 1 |
| Item Volume | 10.1 Fluid Ounces |
| Item Weight | 10.1 ounces |
| Item model number | 90927 |
| Manufacturer | Sika USA |
| Material | 1-C polyurethane |
| Number of Pieces | 1 |
| Package Information | Cartridge |
| Product Dimensions | 14 x 2 x 2 inches |
| Special Feature | Water Resistant |
| Specific Uses For Product | Marine, Underwater |
| UPC | 033886005289 |
| Unit Count | 10.1 Fluid Ounces |
| Viscosity Level | Medium to High |
| 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

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

Works good.

### ⭐⭐⭐⭐⭐ Easy to apply, looks like a good seal
*by E***. 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.

### ⭐⭐⭐⭐⭐ Oh yeah
*by G***T on October 5, 2025*

Grabbed some rubber to make a cover for the saildrive port on my sailboat; it keeps barnacles out. I wasn't expecting this to hold at all for months underwater and under sail. Still there six months later. I am amazed.

## 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 Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-26*