---
product_id: 294002533
title: "Sikaflex-291, Adhesive and Sealant, 10.1 fl. oz Cartridge, White"
brand: "sika"
price: "€ 62.88"
currency: EUR
in_stock: true
reviews_count: 5
category: "Sika"
url: https://www.desertcart.gr/products/294002533-sikaflex-291-adhesive-and-sealant-10-1-fl-oz-cartridge
store_origin: GR
region: Greece
---

# Marine-grade water resistance Fast cure time Multi-surface adhesion Sikaflex-291, Adhesive and Sealant, 10.1 fl. oz Cartridge, White

**Brand:** sika
**Price:** € 62.88
**Availability:** ✅ In Stock

## Summary

> 🛥️ Seal like a pro, sail with confidence!

## Quick Answers

- **What is this?** Sikaflex-291, Adhesive and Sealant, 10.1 fl. oz Cartridge, White by sika
- **How much does it cost?** € 62.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/294002533-sikaflex-291-adhesive-and-sealant-10-1-fl-oz-cartridge)

## 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

- • **Speedy Seal Mastery:** Fast tack-free time accelerates your project timeline without compromising quality.
- • **Universal Surface Bond:** Bonds flawlessly to gelcoat, fiberglass, metal, and wood—your all-in-one adhesive solution.
- • **Marine-Grade Durability:** Resists fresh & sea water, acids, oils, and more for long-lasting performance above and below waterline.
- • **Food & Water Safe Certified:** NSF and USDA approvals ensure safe incidental contact with drinkable water and food surfaces.
- • **Professional-Grade Versatility:** Squeeze or brush application with excellent elasticity and vibration resistance for demanding marine environments.

## Overview

Sikaflex-291 is a premium 1-C polyurethane adhesive and sealant cartridge designed for marine and industrial use. It offers fast curing, exceptional adhesion to multiple surfaces, and superior resistance to water, chemicals, and oils. Certified safe for incidental food and drink contact, it delivers durable, elastic seals ideal for boat maintenance and repair, trusted by professionals for above and below waterline applications.

## Description

Sikaflex®-291 is a high-quality, multipurpose sealant designed specifically for marine applications, making it ideal for use in boats and marine construction. This versatile product provides exceptional elasticity and vibration resistance, ensuring durable, long-lasting seals for joints and seams. Applications: Sikaflex®-291 is perfect for creating vibration-resistant, elastic seals in boats, yachts, and other marine vessels. It is also suitable for a variety of interior sealing applications, making it an essential product for boat maintenance and repair.

Review: Used this to fill the seam between the hull and deck. Used an electric calking gun allowing for controlled flow into the seams which were 22ft runs from stern to bow. took two tubes of Silkaflex. While fresh it was easy to use a scraper to push this material deeper into the seam and simple to remove excess leaving a smooth seam level with the deck. It took several days to harden to my satisfaction and in the meantime collected a layer of dust onto its surface. Once painted there is a subtle but clear discoloration showing through the paint. It's a good product but as this was a restoration job on a classic wooden boat I think epoxy would have been a better choice. But, no complaints with how this material works and I'm sure it will hold up for some time as the hull and deck flex a bit with movement and with the natural swelling and shrinking inherent in wood.
Review: This is really good RTV! I didn't know Silksflex existed until I had to change out a pair of jet drives on a Zodiac Hurricane. Silksflex RTV was the recommended by the OEM manufacturer. I use Silkaflex on Motorhomes, trucks and around my house. Very strong and flexible and seawater resistant.

## Features

- Adhesive and sealant used by many boat builders, its fast cure time makes it ideal for applications where speed is important.
- SUPPORTS: Excellent adhesion to gelcoat, fiberglass, metal and wood.
- DURABILITY: Resistant to fresh water, sea water, limewater, sewage effluent, diluted acids and caustic solutions, temporarily resistant to fuels, mineral oils, vegetable and animal fats and oils.
- PERFORMANCE: Used above and below water line. It may be squeezed or brushed into place. Excellent bond, fast tack-free time and can be painted.
- NSF approved for drinkable water and USDA approved for incidental food contact. This product is suitable for experienced professional users only.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01GPIXX5Y |
| Are batteries included? | No |
| Best Sellers Rank | #102,004 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #81 in Adhesive Caulk |
| Brand | SIKA |
| Colour | White |
| Country of Origin | USA |
| Customer Reviews | 4.3 4.3 out of 5 stars (615) |
| Date First Available | 12 August 2016 |
| Generic Name | Adhesive |
| Included Components | 10.1 fl oz Cartridge |
| Item Dimensions LxWxH | 29.2 x 5.1 x 29.2 Centimeters |
| Item Form | Paste |
| Item Height | 11.5 Inches |
| Item Package Quantity | 1 |
| Item Volume | 10.1 Fluid Ounces |
| Item Weight | 300 g |
| Item Width | 2 Inches |
| Item model number | 90919 |
| Manufacturer | Sika USA |
| Material | 1-C polyurethane |
| Model number | 90919 |
| Net Quantity | 298.69 Milliliters |
| Number of Memory Sticks | 1 |
| Package Information | Cartridge |
| Product Dimensions | 29.21 x 5.08 x 29.21 cm; 300 g |
| Special Feature | Superior Performance and Versatility |
| Specific Uses For Product | Marine, Boat Maintenance and Repair |
| UPC | 033886005258 |
| Viscosity | Moderate |
| Viscosity Level | Medium to High |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** SIKA
- **Item Form:** Paste
- **Material:** 1-C polyurethane
- **Special Feature:** Superior Performance and Versatility
- **Specific Uses For Product:** Marine, Boat Maintenance and Repair

## Images

![Sikaflex-291, Adhesive and Sealant, 10.1 fl. oz Cartridge, White - Image 1](https://m.media-amazon.com/images/I/71EkVlxGSIL.jpg)

## Questions & Answers

**Q: Does the black caulk dry to a gloss, or is it more matte finish, like a dull rubber?**
A: it still retains a dark matte color I would not say dull, but not a gloss finish

**Q: Will it bond to bare aluminum to seal around the rivets?**
A: Yes, I used it to seal my roof fans on my Sprinter.  It adhered to painted metal (scored the paint), wood framing of the opening, plastic shroud and aluminum pressure plates.  I am extremely satisfied with this product and from the day installed, it shows no wear even after a year.  Excellent product...  Another really good product is 3m 4200 Marine Adhesive...

**Q: Will this bond to rubber?**
A: Not sure about rubber, but everything else I happened to get it on and let dry it stuck like paint.  My clothes, stainless railings, fiberglass cabin, teak of course, cork fishing rod handle, my leather wallet. . .

**Q: can you use to adhere spoiler**
A: probably work great

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***F on 21 July 2024*

Used this to fill the seam between the hull and deck. Used an electric calking gun allowing for controlled flow into the seams which were 22ft runs from stern to bow. took two tubes of Silkaflex. While fresh it was easy to use a scraper to push this material deeper into the seam and simple to remove excess leaving a smooth seam level with the deck. It took several days to harden to my satisfaction and in the meantime collected a layer of dust onto its surface. Once painted there is a subtle but clear discoloration showing through the paint. It's a good product but as this was a restoration job on a classic wooden boat I think epoxy would have been a better choice. But, no complaints with how this material works and I'm sure it will hold up for some time as the hull and deck flex a bit with movement and with the natural swelling and shrinking inherent in wood.

### ⭐⭐⭐⭐⭐ Review
*by D***T on 28 October 2025*

This is really good RTV! I didn't know Silksflex existed until I had to change out a pair of jet drives on a Zodiac Hurricane. Silksflex RTV was the recommended by the OEM manufacturer. I use Silkaflex on Motorhomes, trucks and around my house. Very strong and flexible and seawater resistant.

### ⭐⭐⭐⭐ Review
*by W***L on 6 December 2025*

As advertised look forward to using in the spring.

## Frequently Bought Together

- Sikaflex-291, White, General All-Purpose Fast Cure Marine Adhesive and sealant. Polyurethane sealant for Boats, 10.1 fl. oz Cartridge
- Sikaflex-291 LOT, White, Marine Adhesive and sealant, General All-Purpose PU Adhesive with Long Open time, 10.1 fl. oz
- Sikaflex-295 UV Resistant Marine Adhesive Sealant, 10.1 fl. oz Cartridge, White

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-10*