---
product_id: 622288030
title: "Sikaflex-221 - White - Multi-Purpose Polyurethane sealant/Adhesive - Creates Permanent Elastic Seal - Sandable/paintable - Non-Corrosive - 10.1 fl oz (Pack of 24)"
brand: "sika"
price: "150.50 OMR"
currency: OMR
in_stock: true
reviews_count: 13
category: "Sika"
url: https://www.desertcart.com.om/products/622288030-sikaflex-221-white-multi-purpose-polyurethane-sealant-adhesive-creates-permanent
store_origin: OM
region: Oman
---

# Waterproof & chemical resistant - all-weather proof 10.1 fl oz cartridge - precise application Permanent elastic seal - durable & flexible Sikaflex-221 - White - Multi-Purpose Polyurethane sealant/Adhesive - Creates Permanent Elastic Seal - Sandable/paintable - Non-Corrosive - 10.1 fl oz (Pack of 24)

**Brand:** sika
**Price:** 150.50 OMR
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it once, trust it forever — the pro’s choice for permanent bonds!

## Quick Answers

- **What is this?** Sikaflex-221 - White - Multi-Purpose Polyurethane sealant/Adhesive - Creates Permanent Elastic Seal - Sandable/paintable - Non-Corrosive - 10.1 fl oz (Pack of 24) by sika
- **How much does it cost?** 150.50 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/622288030-sikaflex-221-white-multi-purpose-polyurethane-sealant-adhesive-creates-permanent)

## 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

- • **Professional Finish:** Sandable & paintable for seamless integration with your design
- • **Effortless Application:** Ready-to-use cartridge fits all standard guns for clean, accurate placement
- • **Long-Lasting Durability:** Age-resistant formula withstands seawater, acids & harsh environments
- • **Safe for Sensitive Uses:** NSF-approved for drinking water & food production safety compliance
- • **Versatile Bonding Power:** Bonds metals, plastics, ceramics & more for ultimate project flexibility

## Overview

Sika Sikaflex-221 is a professional-grade, multi-purpose polyurethane sealant and adhesive in a convenient 10.1 fl oz cartridge. It creates permanent, elastic, waterproof seals on metals, plastics, ceramics, and more. This NSF-approved, non-corrosive formula resists aging, seawater, and chemicals, making it ideal for demanding industrial, automotive, and household applications. Sandable and paintable, it ensures a flawless finish while delivering reliable, vibration-resistant bonds that last.

## Description

When you need a professional-grade elastic seal or bond, there's one name you can trust: The Sika Sikaflex-221. This multi-purpose adhesive & sealant creates permanent bonds to a wide variety of substrates to give you maximum versatility and range. It's a low-odor, non-corrosive compound that's easy and convenient to work with. For optimal performance, surfaces should be clean and free of any debris, dirt, grease, oil, or dust, then dried prior to application. Complete tooling and finishing before skin forms, typically within an hour of use.

Review: Perfect for automotive use - I used Sikaflex to adhere a roof wing to the back windshield of my car, and I’m seriously impressed with how well it worked. The bond is incredibly strong and feels permanent once cured. I let it set for about 24 hours before driving, and even after months of highway speeds and temperature changes, the wing hasn’t budged at all. The application was pretty straightforward, it has a thick, tacky consistency that gives you enough working time to position everything correctly before it starts to set. I’d recommend taping or clamping the part in place while it cures, because it does take a while to fully harden. Once cured, it’s flexible enough to handle vibration and movement, which is great for automotive use. One thing to note: this stuff is messy. It’s sticky, and once it gets on your hands or paint, it’s not easy to remove. Wear gloves, mask off surrounding areas, and have some cleaner or mineral spirits ready. Overall, Sikaflex delivered exactly what I needed, a strong, weatherproof, and vibration resistant bond that’s holding my roof wing securely in place. It’s not the cheapest adhesive, but it’s worth it for the strength and reliability.
Review: Great stuff for RV - Oh this is the stuff you want working on bare metal airstream! Works very well on vertical walls, you can probably use it on the roof too but this isnt self leveling. Used it to seal all the marker lights, windows, doors, etc.

## Features

- VERSATILITY AND QUALITY IN ONE - Sometimes simply called Sika 221 white, this one-component urethane caulk bonds to a range of substrates, including metals, plastics, and metal primers and coatings
- AGE RESISTANT - Formulated to resist the effects of aging to better perform at peak capacity no matter the conditions. Also resists elements such as seawater, diluted acids, and caustic solutions
- READY TO USE - The Sikaflex black sealant comes in a handy cartridge that fits easily on an electric, pneumatic or manual application gun, making accurate placement of adhesive paste quick and easy
- SAFE AND EFFECTIVE - Approved by the NSF for use in both drinking water systems and food production operations, so you can rest easy knowing there's no harmful level of chemicals
- PERFECT FOR INTERNAL SEALS AND BONDING - Use it for permanent seals that you can rely on. The paste also bonds to ceramic materials and cures quickly upon exposure to atmospheric moisture

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CRS12FHB |
| Best Sellers Rank | #1,688 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Polyurethane Adhesives #19 in Urethane Adhesives |
| Brand | SIKA |
| Color | White |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,783) |
| Date First Available | February 28, 2012 |
| Global Trade Identification Number | 10033886005095 |
| Item Form | Oz |
| Item Weight | 23.6 pounds |
| Item model number | 90891 |
| Liquid Volume | 10.1 Fluid Ounces |
| Manufacturer | SIKA |
| Manufacturer Part Number | 90891 |
| Material | Polyurethane |
| Number of Items | 24 |
| Product Dimensions | 12 x 8 x 12 inches |
| Surface Recommendation | Metal, Wood, Glass |
| Unit Count | 242.4 Fluid Ounces |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** SIKA
- **Color:** White
- **Item Form:** Oz
- **Liquid Volume:** 10.1 Fluid Ounces
- **Surface Recommendation:** Metal, Wood, Glass

## Images

![Sikaflex-221 - White - Multi-Purpose Polyurethane sealant/Adhesive - Creates Permanent Elastic Seal - Sandable/paintable - Non-Corrosive - 10.1 fl oz (Pack of 24) - Image 1](https://m.media-amazon.com/images/I/8102+2Dx9jL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect for automotive use
*by O***A on October 6, 2025*

I used Sikaflex to adhere a roof wing to the back windshield of my car, and I’m seriously impressed with how well it worked. The bond is incredibly strong and feels permanent once cured. I let it set for about 24 hours before driving, and even after months of highway speeds and temperature changes, the wing hasn’t budged at all. The application was pretty straightforward, it has a thick, tacky consistency that gives you enough working time to position everything correctly before it starts to set. I’d recommend taping or clamping the part in place while it cures, because it does take a while to fully harden. Once cured, it’s flexible enough to handle vibration and movement, which is great for automotive use. One thing to note: this stuff is messy. It’s sticky, and once it gets on your hands or paint, it’s not easy to remove. Wear gloves, mask off surrounding areas, and have some cleaner or mineral spirits ready. Overall, Sikaflex delivered exactly what I needed, a strong, weatherproof, and vibration resistant bond that’s holding my roof wing securely in place. It’s not the cheapest adhesive, but it’s worth it for the strength and reliability.

### ⭐⭐⭐⭐⭐ Great stuff for RV
*by I***S on February 6, 2026*

Oh this is the stuff you want working on bare metal airstream! Works very well on vertical walls, you can probably use it on the roof too but this isnt self leveling. Used it to seal all the marker lights, windows, doors, etc.

### ⭐⭐⭐⭐⭐ Great stuff
*by H***D on January 1, 2026*

This stuff is fantastic, especially for bonding hard to glue plastics. Be sure to wear gloves - it is very durable on skin!

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-02-22*