---
product_id: 48115090
title: "Sikaflex 291i – Marine Sealant and Adhesive – Specifically Designed for The Marine Market – Solvent Free – Black – 70ml Mini Cartridge"
brand: "sika"
price: "VT9920"
currency: VUV
in_stock: true
reviews_count: 13
category: "Sika"
url: https://www.desertcart.vu/products/48115090-sikaflex-291i-marine-sealant-and-adhesive-specifically-designed-for-marine
store_origin: VU
region: Vanuatu
---

# Marine-grade durability Water & salt resistant Multi-surface adhesion Sikaflex 291i – Marine Sealant and Adhesive – Specifically Designed for The Marine Market – Solvent Free – Black – 70ml Mini Cartridge

**Brand:** sika
**Price:** VT9920
**Availability:** ✅ In Stock

## Summary

> ⚓ Seal your marine projects with confidence—because your boat deserves the best!

## Quick Answers

- **What is this?** Sikaflex 291i – Marine Sealant and Adhesive – Specifically Designed for The Marine Market – Solvent Free – Black – 70ml Mini Cartridge by sika
- **How much does it cost?** VT9920 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/48115090-sikaflex-291i-marine-sealant-and-adhesive-specifically-designed-for-marine)

## 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

- • **Customizable Finish:** Available in black, white, or grey and can be over-painted to seamlessly blend with your vessel’s aesthetics.
- • **Versatile Adhesion Power:** Bonds effortlessly to wood, metal, plastic, and ceramics—perfect for all your boat repair needs.
- • **Elastic & Vibration-Resistant:** Highly flexible polyurethane formula absorbs shocks and vibrations without cracking or sagging.
- • **Engineered for Marine Mastery:** Specifically designed to withstand harsh marine environments, ensuring your boat stays sealed and secure.
- • **Professional-Grade Water Resistance:** Resists fresh water, seawater, limewater, and diluted acids for long-lasting marine protection.

## Overview

Sika Sikaflex 291i is a solvent-free, 1-component polyurethane marine sealant and adhesive in a convenient 70ml cartridge. Designed specifically for marine applications, it offers high elasticity, strong adhesion to multiple materials, and professional-grade resistance to water, salt, and chemicals. Ideal for internal boat sealing and repairs, it cures fully in 48 hours and comes in multiple colors for a tailored finish.

## Description

Shop Sika Sikaflex 291i – Marine Sealant and Adhesive – Specifically Designed for The Marine Market – Solvent Free – Black – 70ml Mini Cartridge. Free delivery on eligible orders of £20 or more.

Review: Fix hatch on my kayak - Tube was easy to use in my application gun and spreads pretty good nice and smooth. Very messy for hands so ensure you wear gloves you can throw away after use. It glues well to your hands and taking 2 days to fade lol. But seems to have done a good job fixing both of my hatches down onto my kayak. Had a slight leak in the seals thought I'd fix it in readiness for next season. I read great reviews and this is mentioned as the best as its designed for boats and has resistance to salt water and fresh all good, the adhesion to plastic was reviewed as really good on other Google review sites not desertcart by the way. I've water tested my kayak with water around the seal a good finish no leaks then I chucked z good size bucket of water as a sort of pressure test gave it a good dowsing of water all good no leaks ... I'd tell anyone to buy its worth the extra money. How long will it last hoping few years, plenty left in the tube. Drying time not on the tube but reviews on a Google search said 24 hrs mine was curing in few hours and after 16hrs I was water testing it so its decent. Just messy be prepared to get this stuff in places you didn't want it. I applied a bit too much and white spirits helped clean up a bit. You don't need loads on lesson learnt the second hatch I fitted to my kayak I used less and its sealed well be aware when you apply force if doing a kayak excess Sealand also goes inside the kayak so I got it on my arms and hands without realising it had gone inside kayak hatch rim lol. Enjoy using it havd gun and if fitting to a kayak hatch like me it's good buy it just take it from me less is better.. Next time thin the amount out on kayak lip... im not a robot really used this gloop highly recommend if you need eater tight. Kev
Review: Marine grade - Great product, worked well

## Features

- May cause an allergic skin reaction.
- SPECIFICALLY DESIGNED FOR THE MARINE MARKET – Highly flexible adhesive and sealant suited for most internal boat sealing applications.
- MULTIPURPOSE – Use it as a sealant or adhesive on wood, metal, ceramics, plastics and more for high grab adhesion and seals.
- HIGHLY ELASTIC – This moisture-curing, non-sag 1-component polyurethane sealant and adhesive is highly flexible and works well in areas prone to strong vibrations.
- PROVIDES PROFESSIONAL-GRADE RESISTANCE – Resistant to fresh water, sea water, limewater, sewage effluent diluted acids and much more providing suitability for repairs and maintenance on boats and marine vehicles.
- MULTIPLE COLOURS AVAILABLE – Choose from black, white or grey to suit your space, or over-paint it when dry.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00UN3UNL0 |
| Best Sellers Rank | 2,312 in DIY & Tools ( See Top 100 in DIY & Tools ) 59 in Sealers |
| Brand | Sika |
| Colour | Black |
| Compatible Material | Metal, Wood, Plastic, Frame |
| Container Type | Tube |
| Country Of Origin | Switzerland |
| Customer Reviews | 4.6 4.6 out of 5 stars (868) |
| 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 |
| Manufacturer | Sika Everbuild |
| Material | Polyurethane |
| Model Number | 291i |
| Other Special Features of the Product | Marine-Specific Resistance and High Elasticity |
| Specific Uses For Product | Marine |
| Unit Count | 70.0 millilitre(s) |
| Viscosity | High viscosity |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Sika
- **Item form:** Paste
- **Material:** Polyurethane
- **Special feature:** Marine-Specific Resistance and High Elasticity
- **Specific uses for product:** Marine

## Images

![Sikaflex 291i – Marine Sealant and Adhesive – Specifically Designed for The Marine Market – Solvent Free – Black – 70ml Mini Cartridge - Image 1](https://m.media-amazon.com/images/I/51oisHrs4-L.jpg)

## Available Options

This product comes in different **Color, Style** options.

## Questions & Answers

**Q: Is this any good for sticking treadmaster/rubber anti slip deck sheets on a boat?**
A: Suitability will depend on the rubber unfortunately, would check with the sheet manufacture for the type of adhesive to be used.

**Q: Is this aquarium safe**
A: sadly, no

**Q: Will this stick wood to polypropolene plastic?**
A: Hi, no this is not suitable for polypropylene unfortunately.

**Q: is this suitable to repair a small tear in an above ground swimming pool**
A: No reason for it not to work, I use it all the time to water proof my boat.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fix hatch on my kayak
*by K***S on 2 October 2022*

Tube was easy to use in my application gun and spreads pretty good nice and smooth. Very messy for hands so ensure you wear gloves you can throw away after use. It glues well to your hands and taking 2 days to fade lol. But seems to have done a good job fixing both of my hatches down onto my kayak. Had a slight leak in the seals thought I'd fix it in readiness for next season. I read great reviews and this is mentioned as the best as its designed for boats and has resistance to salt water and fresh all good, the adhesion to plastic was reviewed as really good on other Google review sites not amazon by the way. I've water tested my kayak with water around the seal a good finish no leaks then I chucked z good size bucket of water as a sort of pressure test gave it a good dowsing of water all good no leaks ... I'd tell anyone to buy its worth the extra money. How long will it last hoping few years, plenty left in the tube. Drying time not on the tube but reviews on a Google search said 24 hrs mine was curing in few hours and after 16hrs I was water testing it so its decent. Just messy be prepared to get this stuff in places you didn't want it. I applied a bit too much and white spirits helped clean up a bit. You don't need loads on lesson learnt the second hatch I fitted to my kayak I used less and its sealed well be aware when you apply force if doing a kayak excess Sealand also goes inside the kayak so I got it on my arms and hands without realising it had gone inside kayak hatch rim lol. Enjoy using it havd gun and if fitting to a kayak hatch like me it's good buy it just take it from me less is better.. Next time thin the amount out on kayak lip... im not a robot really used this gloop highly recommend if you need eater tight. Kev

### ⭐⭐⭐⭐⭐ Marine grade
*by W***Y on 15 September 2025*

Great product, worked well

### ⭐⭐⭐⭐⭐ Super quality
*by R***D on 15 July 2025*

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!

## Frequently Bought Together

- Sika Sikaflex 291i – Marine Sealant and Adhesive – Specifically Designed For The Marine Market – Solvent Free – Black – 70ml Mini Cartridge
- Sikaflex 291i White Multi-Functional Adhesive sealant for Marine Application - White
- 316 Stainless Steel Bilge Drain Plug Fit 1inch, 25mm Hole, Oval, Garboard, Marine

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.vu/products/48115090-sikaflex-291i-marine-sealant-and-adhesive-specifically-designed-for-marine](https://www.desertcart.vu/products/48115090-sikaflex-291i-marine-sealant-and-adhesive-specifically-designed-for-marine)

---

*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-07*