---
product_id: 638478531
title: "Sealant - Sikaflex-291i Black - Ideal for Marine Use - Highly Elastic and Can Be Painted Over - Low Odour - 300ml"
brand: "sika"
price: "€ 51.91"
currency: EUR
in_stock: true
reviews_count: 5
category: "Sika"
url: https://www.desertcart.sk/products/638478531-sealant-sikaflex-291i-black-ideal-for-marine-use-highly-elastic
store_origin: SK
region: Slovakia
---

# High elasticity for vibration resistance Paintable after curing Marine-grade water resistance Sealant - Sikaflex-291i Black - Ideal for Marine Use - Highly Elastic and Can Be Painted Over - Low Odour - 300ml

**Brand:** sika
**Price:** € 51.91
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Sealant - Sikaflex-291i Black - Ideal for Marine Use - Highly Elastic and Can Be Painted Over - Low Odour - 300ml by sika
- **How much does it cost?** € 51.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/638478531-sealant-sikaflex-291i-black-ideal-for-marine-use-highly-elastic)

## 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

- • **Seamless Finish:** Paintable surface for flawless, professional aesthetics
- • **Flexible Strength:** Highly elastic formula adapts to movement without cracking
- • **Multi-Surface Mastery:** Bonds wood, metal, glass, ceramic & plastic effortlessly
- • **Low Odour, Low Emission:** Eco-conscious choice with minimal VOCs for safer use
- • **Ultimate Marine Sealant:** Resists fresh & salt water for long-lasting protection

## Overview

Sikaflex-291i is a premium 300ml polyurethane-based marine sealant designed for superior adhesion and elasticity on diverse surfaces. Resistant to fresh and salt water, it ensures durable, vibration-resistant seals ideal for boats and maritime applications. Its low odour and minimal VOC emissions make it an eco-friendly choice, while its paintable finish allows for seamless integration into any project.

## Description

Resistant to fresh and salt water, as well as the strict requirements of various marine standards, Sikaflex-291i is the perfect sealant for the marine sector. Its high adhesion and elasticity make it the ideal sealant for particularly stressed joints in maritime environments. At the same time, the elastic property ensures that the joints are vibration resistant. Thanks to its unique polyurethane-based formula, the adhesive cures by humidity - at higher temperatures, this process is slightly faster, but slightly slower at lower temperatures.

Review: Ideal marine quality sealant that will stop those annoying leaks. Easy to apply. Reasonable price. Waterproof.
Review: Como he dicho antes muy buen producto como rellenar grietas,he podido moldear los brazos de mi silla de ruedas y varias cosas más. E vuelto a comprar otro tubo. Eso sí algo caro

## Features

- Adhesive strength: Sikaflex-291i has an excellent adhesion spectrum and can be used on various surfaces such as wood, metal, ceramic, glass and plastic
- Elasticity - This strong adhesive sealant is highly elastic and therefore ideal for applications where a certain mobility is required, such as the grouting of windows or doors
- Paintable - This marine adhesive can be painted over after curing. This is especially advantageous for visible joints, which are to be painted later
- For marine areas - Resistant to fresh and salt water, this marine sealant is versatile and suitable for sealing on boats and ships
- Low emission - This sealant is an environmentally friendly choice. The isocyanate and emission values are low, so the adhesive contains only minimally volatile organic compounds

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004ZF8L0M |
| Best Sellers Rank | #39,108 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #227 in Hardware Sealers |
| Department | Insulators, detergents, paints |
| Item model number | 291i |
| Manufacturer | Sika |
| Product Dimensions | 4.8 x 4.8 x 23 cm; 402 g |

## Product Details

- **Brand:** SIKA
- **Item dimensions L x W x H:** 48 x 48 x 230 millimeters
- **Item weight:** 0.4 Kilograms
- **Material:** Polyurethane
- **Style:** Cartridge

## Images

![Sealant - Sikaflex-291i Black - Ideal for Marine Use - Highly Elastic and Can Be Painted Over - Low Odour - 300ml - Image 1](https://m.media-amazon.com/images/I/613tQFcR5DL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by D***D on 11 July 2025*

Ideal marine quality sealant that will stop those annoying leaks. Easy to apply. Reasonable price. Waterproof.

### ⭐⭐⭐⭐⭐ Review
*by J***R on 15 July 2024*

Como he dicho antes muy buen producto como rellenar grietas,he podido moldear los brazos de mi silla de ruedas y varias cosas más. E vuelto a comprar otro tubo. Eso sí algo caro

### ⭐⭐⭐⭐⭐ Review
*by C***N on 11 February 2025*

Excellent produit afin de réaliser des réparations d'étanchéité. Marque que l'on m'avais conseillé, pas déçu. J'ai pu m'en servir plusieurs fois et même plusieurs années plus tard avec la même efficacité et ce sans pistolet. Attention tout de même à s'assurer de reboucher afin d'éviter la prise d'air et que tout durcisse sur de longues périodes.

## Frequently Bought Together

- Sikaflex Black 291i Multifunctional Adhesive sealant for Marine Applications, 300ml
- 10 Gauge Marine Wire 10 AWG Marine Grade Wire,10/3 Triplex Tinned Copper Boat Cable,10 Gauge Oxygen-Free Copper Cable for Automotive RV Boat Speakers Solar Outdoors - 30ft
- Sika Sikaflex-221 - Black - Multi-Purpose Polyurethane sealant/Adhesive - Creates Permanent Elastic Seal - Sandable/paintable - Non-Corrosive - 10.1 fl oz

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**Shop now:** [https://www.desertcart.sk/products/638478531-sealant-sikaflex-291i-black-ideal-for-marine-use-highly-elastic](https://www.desertcart.sk/products/638478531-sealant-sikaflex-291i-black-ideal-for-marine-use-highly-elastic)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-21*