---
product_id: 615004640
title: "Sika Sikaflex-221 - Aluminum Gray - Multi-Purpose Polyurethane sealant/Adhesive - Creates Permanent Elastic Seal - Sandable/paintable - Non-Corrosive - 10.1 fl. Oz (Pack of 24)"
brand: "sika"
price: "₨16135"
currency: SCR
in_stock: true
reviews_count: 13
category: "Sika"
url: https://www.desertcart.sc/products/615004640-sika-sikaflex-221-aluminum-gray-multi-purpose-polyurethane-sealant-adhesive
store_origin: SC
region: Seychelles
---

# Age & element resistant Precision cartridge delivery Multi-substrate bonding Sika Sikaflex-221 - Aluminum Gray - Multi-Purpose Polyurethane sealant/Adhesive - Creates Permanent Elastic Seal - Sandable/paintable - Non-Corrosive - 10.1 fl. Oz (Pack of 24)

**Brand:** sika
**Price:** ₨16135
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Sika Sikaflex-221 - Aluminum Gray - 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?** ₨16135 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/615004640-sika-sikaflex-221-aluminum-gray-multi-purpose-polyurethane-sealant-adhesive)

## 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

- • **Built to Last:** Formulated to resist seawater, acids, and harsh weather—peak performance guaranteed.
- • **Ultimate Versatility:** Bonds metals, plastics, ceramics & more for all your project needs.
- • **Safe for Critical Use:** NSF-approved for drinking water and food production environments—no compromises.
- • **Effortless Application:** Cartridge fits all standard guns for clean, precise, and quick sealant placement.
- • **Flexible & Durable Seal:** Permanent elastic bond that handles vibration and movement without cracking.

## Overview

Sika Sikaflex-221 is a professional-grade, multi-purpose polyurethane sealant and adhesive in aluminum gray. It delivers permanent elastic seals on metals, plastics, ceramics, and more, with superior resistance to aging, seawater, and chemicals. Ready-to-use in a convenient cartridge, it’s NSF-approved for safe use in drinking water and food production systems. Ideal for automotive, RV, and industrial applications, it cures quickly to a flexible, durable bond that withstands vibration and weather.

## 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 aluminum gray, 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 221 gray 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 | B0CRRZW1VM |
| Best Sellers Rank | #1,573 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #17 in Urethane Adhesives |
| Brand | SIKA |
| Color | Aluminum Gray |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,814) |
| Date First Available | June 6, 2016 |
| Global Trade Identification Number | 10033886005101 |
| Item Form | Liquid |
| Item Weight | 24 pounds |
| Item model number | 90892 |
| Liquid Volume | 10.3 Fluid Ounces |
| Manufacturer | Sika |
| Manufacturer Part Number | 90892 |
| Material | Polyurethane |
| Number of Items | 24 |
| Product Dimensions | 12 x 8 x 12 inches |
| Surface Recommendation | Metal, Wood, Glass |
| Unit Count | 24.0 Count |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** SIKA
- **Color:** Aluminum Gray
- **Item Form:** Liquid
- **Item Weight:** 24 Pounds
- **Liquid Volume:** 10.3 Fluid Ounces

## Images

![Sika Sikaflex-221 - Aluminum Gray - 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)
![Sika Sikaflex-221 - Aluminum Gray - Multi-Purpose Polyurethane sealant/Adhesive - Creates Permanent Elastic Seal - Sandable/paintable - Non-Corrosive - 10.1 fl. Oz (Pack of 24) - Image 2](https://m.media-amazon.com/images/I/71amhnUVJTL.jpg)
![Sika Sikaflex-221 - Aluminum Gray - Multi-Purpose Polyurethane sealant/Adhesive - Creates Permanent Elastic Seal - Sandable/paintable - Non-Corrosive - 10.1 fl. Oz (Pack of 24) - Image 3](https://m.media-amazon.com/images/I/81o8csk5kPL.jpg)
![Sika Sikaflex-221 - Aluminum Gray - Multi-Purpose Polyurethane sealant/Adhesive - Creates Permanent Elastic Seal - Sandable/paintable - Non-Corrosive - 10.1 fl. Oz (Pack of 24) - Image 4](https://m.media-amazon.com/images/I/71l8Iq5SN-L.jpg)
![Sika Sikaflex-221 - Aluminum Gray - Multi-Purpose Polyurethane sealant/Adhesive - Creates Permanent Elastic Seal - Sandable/paintable - Non-Corrosive - 10.1 fl. Oz (Pack of 24) - Image 5](https://m.media-amazon.com/images/I/71k8QM9HcbL.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!

## Frequently Bought Together

- Sika Sikaflex-221 - Aluminum Gray - Multi-Purpose Polyurethane sealant/Adhesive - Creates Permanent Elastic Seal - Sandable/paintable - Non-Corrosive - 10.1 fl. Oz (Pack of 24)
- AC Infinity Flexible 8-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-03-14*