---
product_id: 713151203
title: "Sika SF-291 Flex 291i-Multifunctional Adhesive Sealant for Marine Applications, 300 ml, Black, Black/Black"
brand: "sika"
price: "A$178"
currency: AUD
in_stock: true
reviews_count: 5
category: "Sika"
url: https://www.desertcart.com.au/products/713151203-sika-sf-291-flex-291i-multifunctional-adhesive-sealant-for-marine
store_origin: AU
region: Australia
---

# Marine-grade adhesion Water & salt resistant High tensile strength 222 lbs Sika SF-291 Flex 291i-Multifunctional Adhesive Sealant for Marine Applications, 300 ml, Black, Black/Black

**Brand:** sika
**Price:** A$178
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Sika SF-291 Flex 291i-Multifunctional Adhesive Sealant for Marine Applications, 300 ml, Black, Black/Black by sika
- **How much does it cost?** A$178 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/713151203-sika-sf-291-flex-291i-multifunctional-adhesive-sealant-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

- • **Safe Indoor Use:** Solvent-free, low-odour formula perfect for internal applications without compromising air quality.
- • **Certified Sea-Ready:** Wheelmark approved to meet UK & EU safe-at-sea standards, ensuring trusted performance on all your watercraft.
- • **Flexible & Paintable Finish:** Cures to a highly elastic, non-sagging seal that moves with your boat and can be seamlessly overpainted.
- • **Color Options for Custom Looks:** Available in black, white, and grey to match or enhance your vessel’s aesthetic.
- • **Engineered for Marine Durability:** Specifically crafted to withstand harsh marine environments with vibration-resistant bonds on wood, metal, plastics, and ceramics.

## Overview

Sika SF-291 Flex 291i is a professional-grade, solvent-free adhesive sealant designed for marine applications. Offering high tensile strength (222 lbs), excellent water and salt resistance, and a flexible, paintable finish, it’s Wheelmark approved for safe use on boats across the UK and EU. Available in multiple colors, it ensures durable, vibration-resistant seals on diverse materials, making it the go-to choice for millennial boat owners who demand reliability and style.

## Description

SIKA Flex 291 iCURE

Review: Olá! Avaliando o selante: O produto superou as minhas expectativas! A secagem foi rápida, portanto recomendo a compra desse produto.
Review: 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

## Features

- SAFE FOR INTERNAL APPLICATIONS – Formulated into a solvent-free, low-odour, non-corrosive and very low VOC blend that you can use safely indoors.
- IDEAL FOR PROFESSIONAL BOAT APPLICATIONS – Specifically designed for the marine market to provide vibration-resistant bonds and seals on wood, metal, ceramics, plastics and more.
- HIGHLY ELASTIC – Cures in ambient moisture to a non-sagging finish that flexes with the boat movement and can be overpainted for a seamless finish.
- WHEELMARK APPROVED – Accredited by Wheelmark to meet the safe at sea requirements, meaning you can use it on boats in the UK and European Union.
- A CHOICE OF COLOURS – Available in black, white and grey.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BAROCHY |
| Brand | SIKA |
| Color | Black - Nero |
| Date First Available | January 3, 2023 |
| Full Cure Time | 48 Hours |
| Global Trade Identification Number | 07612894815177 |
| Is Discontinued By Manufacturer | No |
| Item Form | Cream |
| Item Package Quantity | 1 |
| Item Volume | 300 Milliliters |
| Item Weight | 14.2 ounces |
| Item model number | 291i |
| Manufacturer | Sika |
| Material | Sealant & Adhesive |
| Package Information | Cartridge |
| Product Dimensions | 1.97 x 1.97 x 8.27 inches |
| Special Feature | Solvent free, low VOC, low irritation, seawater resistant |
| Specific Uses For Product | SIKA Flex 291 iCURE |
| Tensile Strength | 222 Pounds |
| Unit Count | 10.1442 Fluid Ounces |
| Viscosity | High (relative estimation based on non-sag properties) |
| Viscosity Level | High |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** SIKA
- **Item Form:** Cream
- **Material:** Sealant & Adhesive
- **Special Feature:** Solvent free, low VOC, low irritation, seawater resistant
- **Specific Uses For Product:** SIKA Flex 291 iCURE

## Images

![Sika SF-291 Flex 291i-Multifunctional Adhesive Sealant for Marine Applications, 300 ml, Black, Black/Black - Image 1](https://m.media-amazon.com/images/I/41X0c-HR-SL.jpg)
![Sika SF-291 Flex 291i-Multifunctional Adhesive Sealant for Marine Applications, 300 ml, Black, Black/Black - Image 2](https://m.media-amazon.com/images/I/51+7YaZdksL.jpg)
![Sika SF-291 Flex 291i-Multifunctional Adhesive Sealant for Marine Applications, 300 ml, Black, Black/Black - Image 3](https://m.media-amazon.com/images/I/51+LQCdbOiL.jpg)
![Sika SF-291 Flex 291i-Multifunctional Adhesive Sealant for Marine Applications, 300 ml, Black, Black/Black - Image 4](https://m.media-amazon.com/images/I/515ARCgKI5L.jpg)
![Sika SF-291 Flex 291i-Multifunctional Adhesive Sealant for Marine Applications, 300 ml, Black, Black/Black - Image 5](https://m.media-amazon.com/images/I/51QzfUxqRuL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***O on July 16, 2025*

Olá! Avaliando o selante: O produto superou as minhas expectativas! A secagem foi rápida, portanto recomendo a compra desse produto.

### ⭐⭐⭐⭐⭐ Review
*by K***S on October 2, 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

### ⭐⭐ Review
*by A***E on May 19, 2023*

der Kartusche hat der hintere Deckel und das Entfeuchtergranulat gefehl.Habe ich reklamiert .man sagte mir das macht nichts.Ich werde es ausprobieren ob sie noch nicht eingetrocknet ist. Normalerweise sollte sowas nicht mehr verschickt werden.Eine neue als Ersatz wäre angebracht gewesen

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-01*