---
product_id: 48115090
title: "Sika Sikaflex 291i Marine Sealant and Adhesive, Black, 70ml Mini Cartridge"
brand: "sika"
price: "€ 41.61"
currency: EUR
in_stock: true
reviews_count: 10
category: "Sika"
url: https://www.desertcart.hr/products/48115090-sika-sikaflex-291i-marine-sealant-and-adhesive-black-70ml-mini
store_origin: HR
region: Croatia
---

# Marine-grade flexibility Water & chemical resistant Multi-surface adhesion Sika Sikaflex 291i Marine Sealant and Adhesive, Black, 70ml Mini Cartridge

**Brand:** sika
**Price:** € 41.61
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Sika Sikaflex 291i Marine Sealant and Adhesive, Black, 70ml Mini Cartridge by sika
- **How much does it cost?** € 41.61 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/48115090-sika-sikaflex-291i-marine-sealant-and-adhesive-black-70ml-mini)

## 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

- • **Resilient Against Elements:** Resists fresh & sea water, acids, limewater, and sewage for long-lasting marine durability.
- • **Ultimate Marine Flexibility:** Engineered for boat interiors with unmatched elasticity to withstand vibrations and movement.
- • **Paintable & Color Customizable:** Available in black, white, or grey and can be over-painted to perfectly match your project.
- • **Easy Application Mini Cartridge:** Compact 70ml tube designed for precise, no-sag application in tight marine spaces.
- • **Versatile Multi-Material Bonding:** Seals and adheres wood, metal, plastics, and ceramics with professional-grade grip.

## Overview

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.

## Description

Shop Sika Sikaflex 291i Marine Sealant and Adhesive, Black, 70ml Mini Cartridge | Paintable – Solvent-Free – Wheelmark Approved. Free delivery on eligible orders of £20 or more.

Review: 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!
Review: 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.

## 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 | 2,980 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 |

## Product Details

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

## Images

![Sika Sikaflex 291i Marine Sealant and Adhesive, Black, 70ml Mini Cartridge - Image 1](https://m.media-amazon.com/images/I/51oisHrs4-L.jpg)
![Sika Sikaflex 291i Marine Sealant and Adhesive, Black, 70ml Mini Cartridge - Image 2](https://m.media-amazon.com/images/I/71FYOh4bGOL.jpg)
![Sika Sikaflex 291i Marine Sealant and Adhesive, Black, 70ml Mini Cartridge - Image 3](https://m.media-amazon.com/images/I/71+U9ClbgxL.jpg)
![Sika Sikaflex 291i Marine Sealant and Adhesive, Black, 70ml Mini Cartridge - Image 4](https://m.media-amazon.com/images/I/71Vn5q2Q7EL.jpg)
![Sika Sikaflex 291i Marine Sealant and Adhesive, Black, 70ml Mini Cartridge - Image 5](https://m.media-amazon.com/images/I/81soYBuq2vL.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

### ⭐⭐⭐⭐⭐ 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!

### ⭐⭐⭐⭐ OK for what I used it for.
*by M***T on 14 March 2026*

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.

### ⭐⭐⭐⭐⭐ Perfect
*by T***Y on 22 October 2021*

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.

## 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

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**Shop now:** [https://www.desertcart.hr/products/48115090-sika-sikaflex-291i-marine-sealant-and-adhesive-black-70ml-mini](https://www.desertcart.hr/products/48115090-sika-sikaflex-291i-marine-sealant-and-adhesive-black-70ml-mini)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-08-15*