---
product_id: 691428109
title: "Sealant - Sikaflex-291i Steel Grey - Ideal for Marine Use - Highly Elastic and Paintable - Low Odour - 300ml"
brand: "sika"
price: "€ 45.63"
currency: EUR
in_stock: true
reviews_count: 5
category: "Sika"
url: https://www.desertcart.fi/products/691428109-sealant-sikaflex-291i-steel-grey-ideal-for-marine-use-highly
store_origin: FI
region: Finland
---

# Marine-grade water resistance Low VOC, eco-friendly formula High adhesion on multiple surfaces Sealant - Sikaflex-291i Steel Grey - Ideal for Marine Use - Highly Elastic and Paintable - Low Odour - 300ml

**Brand:** sika
**Price:** € 45.63
**Availability:** ✅ In Stock

## Summary

> ⚓ Seal your projects with marine-grade strength and style!

## Quick Answers

- **What is this?** Sealant - Sikaflex-291i Steel Grey - Ideal for Marine Use - Highly Elastic and Paintable - Low Odour - 300ml by sika
- **How much does it cost?** € 45.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/691428109-sealant-sikaflex-291i-steel-grey-ideal-for-marine-use-highly)

## 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

- • **Broad Surface Compatibility:** Bonds strongly to wood, metal, glass, ceramic, and plastic for versatile applications.
- • **Unmatched Marine Durability:** Engineered to withstand fresh & saltwater environments, perfect for boats and ships.
- • **Eco-Conscious Low Odour Formula:** Minimizes volatile organic compounds, ensuring safer indoor and outdoor use.
- • **Paintable Finish for Seamless Integration:** Allows customization with paint after curing, ideal for visible joints.
- • **Superior Elasticity for Vibration Resistance:** Keeps joints flexible and intact under constant movement and stress.

## Overview

Sikaflex-291i is a 300ml steel grey polyurethane-based sealant designed for marine use, offering excellent adhesion, high elasticity, and paintability. Resistant to fresh and saltwater, it ensures durable, vibration-resistant seals on diverse surfaces while maintaining low emissions for an eco-friendly choice.

## 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: Mastice conosciuto per l'uso nautico, lo consiglio.
Review: Die Kartusche war sehr verbeult. War eine Herausforderung beim rauspressen.

## 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 | B00TZNOTUU |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #178,884 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #147 in Waterproofers |
| Color | steel grey |
| Customer Reviews | 4.6 4.6 out of 5 stars (157) |
| Date First Available | 6 May 2024 |
| Item model number | 409331 |
| Material Type(s) | Wood |
| Number of Puzzle Pieces | 1 |
| Product Dimensions | 4.8 x 4.8 x 23 cm; 414 g |

## Product Details

- **Brand:** SIKA
- **Item dimensions L x W x H:** 48 x 48 x 230 millimeters
- **Item weight:** 0.41 Kilograms
- **Material:** Wood
- **Style:** Cartridge

## Images

![Sealant - Sikaflex-291i Steel Grey - Ideal for Marine Use - Highly Elastic and Paintable - Low Odour - 300ml - Image 1](https://m.media-amazon.com/images/I/61HEF2AEOoL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***. on 4 March 2020*

Mastice conosciuto per l'uso nautico, lo consiglio.

### ⭐⭐ Review
*by R***. on 15 October 2025*

Die Kartusche war sehr verbeult. War eine Herausforderung beim rauspressen.

### ⭐⭐⭐⭐⭐ Review
*by U***M on 30 March 2025*

Lässt sich gut verarbeiten, Sikaflex ist eben eine gute Marke

## Frequently Bought Together

- Colle-Mastic Multipurpose Special Navy, 409331
- Sika – Sikaflex 291i – Marine Sealant and Adhesive – Specifically Designed For The Marine Market – Solvent Free – Black – 300ml Cartridge
- Sika Sikaflex -292i – Multipurpose Adhesive – For Marine Applications – Paintable – Solvent-Free – Wheelmark Approved – White – 300ml

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**Shop now:** [https://www.desertcart.fi/products/691428109-sealant-sikaflex-291i-steel-grey-ideal-for-marine-use-highly](https://www.desertcart.fi/products/691428109-sealant-sikaflex-291i-steel-grey-ideal-for-marine-use-highly)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-27*