---
product_id: 294002533
title: "Sikaflex-291, Adhesive and Sealant, 10.1 fl. oz Cartridge, White"
brand: "sika"
price: "฿3550"
currency: THB
in_stock: false
reviews_count: 5
category: "Sika"
url: https://www.desertcart.co.th/products/294002533-sikaflex-291-adhesive-and-sealant-10-1-fl-oz-cartridge
store_origin: TH
region: Thailand
---

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

**Brand:** sika
**Price:** ฿3550
**Availability:** ❌ Out of Stock

## Summary

> 🛥️ Seal it fast, seal it strong—because your boat deserves the best!

## Quick Answers

- **What is this?** Sikaflex-291, Adhesive and Sealant, 10.1 fl. oz Cartridge, White by sika
- **How much does it cost?** ฿3550 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/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

- • **Marine-Grade Durability:** Engineered to withstand fresh and sea water, acids, oils, and more—built tough for the elements.
- • **Versatile Adhesion Power:** Bonds flawlessly to gelcoat, fiberglass, metal, and wood—one sealant for all your professional needs.
- • **Rapid Cure, Ready to Seal:** Get your projects moving fast with Sikaflex-291’s quick tack-free time—no more waiting around.
- • **Certified Safe & Paintable:** NSF and USDA approved for incidental food contact, plus paintable for a flawless finish—professional quality assured.
- • **Above & Below Waterline Confidence:** Reliable performance whether your work is submerged or exposed—trusted by boat builders worldwide.

## Overview

Sikaflex-291 is a premium 1-component polyurethane adhesive and sealant designed for marine applications. It offers fast curing, excellent adhesion to multiple surfaces including gelcoat and fiberglass, and superior resistance to water, chemicals, and oils. Suitable for use above and below the waterline, it is NSF and USDA approved, paintable, and trusted by professional boat builders for durable, vibration-resistant seals.

## 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 | #98,701 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #76 in Adhesive Caulk |
| Brand | SIKA |
| Colour | White |
| Country of Origin | USA |
| Customer Reviews | 4.3 4.3 out of 5 stars (614) |
| 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/31Euh70HSrL.jpg)
![Sikaflex-291, Adhesive and Sealant, 10.1 fl. oz Cartridge, White - Image 2](https://m.media-amazon.com/images/I/41URujSSXoL.jpg)
![Sikaflex-291, Adhesive and Sealant, 10.1 fl. oz Cartridge, White - Image 3](https://m.media-amazon.com/images/I/41wUtbupcfL.jpg)
![Sikaflex-291, Adhesive and Sealant, 10.1 fl. oz Cartridge, White - Image 4](https://m.media-amazon.com/images/I/518ONfJx8iL.jpg)
![Sikaflex-291, Adhesive and Sealant, 10.1 fl. oz Cartridge, White - Image 5](https://m.media-amazon.com/images/I/51CyWDkumuL.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 Thailand*
*Store origin: TH*
*Last updated: 2026-01-28*