---
product_id: 304313725
title: "Sika Sikaflex-221 - Black - Multi-purpose polyurethane sealant/adhesive - Creates permanent elastic seal - Sandable/paintable - Non-corrosive - 10.1 fl oz"
brand: "sika"
price: "₩53034"
currency: KRW
in_stock: true
reviews_count: 5
category: "Sika"
url: https://www.desertcart.kr/products/304313725-sika-sikaflex-221-black-multi-purpose-polyurethane-sealant-adhesive-creates
store_origin: KR
region: South Korea
---

# Resists seawater & acids Sandable & paintable 1-component polyurethane Sika Sikaflex-221 - Black - Multi-purpose polyurethane sealant/adhesive - Creates permanent elastic seal - Sandable/paintable - Non-corrosive - 10.1 fl oz

**Brand:** sika
**Price:** ₩53034
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal it once, seal it right — the pro’s choice for lasting strength!

## Quick Answers

- **What is this?** Sika Sikaflex-221 - Black - Multi-purpose polyurethane sealant/adhesive - Creates permanent elastic seal - Sandable/paintable - Non-corrosive - 10.1 fl oz by sika
- **How much does it cost?** ₩53034 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/304313725-sika-sikaflex-221-black-multi-purpose-polyurethane-sealant-adhesive-creates)

## 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

- • **Ready-to-Use Cartridge:** Fits electric, pneumatic, or manual guns for precise, mess-controlled application
- • **Flexible & Durable Seal:** Cures to a tough elastomer that handles vibration and movement without cracking
- • **Weatherproof & Age-Resistant:** Engineered to withstand seawater, acids, and harsh elements without losing performance
- • **Ultimate Multi-Surface Bonding:** Bonds metals, plastics, ceramics & more with permanent elastic strength
- • **Safe for Sensitive Environments:** NSF-approved for drinking water and food production, ensuring chemical safety

## Overview

Sikaflex-221 is a premium black polyurethane sealant and adhesive that cures on exposure to moisture, creating a durable, flexible, and permanent elastic seal. It bonds effectively to a wide range of substrates including metals, plastics, ceramics, and painted surfaces. Resistant to aging, seawater, diluted acids, and caustic solutions, it’s NSF-approved for use in drinking water and food production environments. Packaged in a convenient cartridge for easy application, Sikaflex-221 is ideal for professional-grade internal seals and bonding tasks requiring long-lasting reliability.

## Description

Sikaflex-221 is a high-quality multi-purpose non-sag 1-c polyurethane sealant/adhesive that cures on exposure to atmospheric humidity to form a durable elastomer. Sikaflex-221 bonds well to a wide variety of substrates and is suitable for making permanent elastic seals of high adhesive strength. Suitable substrate materials are wood, metals, metal primers and paint coatings (2-c systems), ceramic materials and plastics.

Review: 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: Very good

## Features

- VERSATILITY AND QUALITY IN ONE - Sometimes simply called Sika 221 black, 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 | B00NW5LWHA |
| Batteries | 1 Nonstandard Battery batteries required. |
| Best Sellers Rank | #987 in Automotive ( See Top 100 in Automotive ) #6 in Automotive Fillers, Adhesives & Sealants |
| Brand | SIKA |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,480) |
| Date First Available | 16 January 2015 |
| Item Weight | 286 g |
| Item model number | 017-90893 |
| Manufacturer | SIKA |
| Manufacturer Part Number | 017-90893 |
| Model | 017-90893 |
| Product Dimensions | 30.48 x 5.08 x 30.48 cm; 286.33 g |
| Special Features | Stain resistant |

## Product Details

- **Brand:** SIKA
- **Colour:** Black
- **Full cure time:** 3 Hours
- **Item weight:** 10.1 Ounces
- **Liquid volume:** 10.1 Fluid Ounces

## Images

![Sika Sikaflex-221 - Black - Multi-purpose polyurethane sealant/adhesive - Creates permanent elastic seal - Sandable/paintable - Non-corrosive - 10.1 fl oz - Image 1](https://m.media-amazon.com/images/I/6177TD7R3eL.jpg)
![Sika Sikaflex-221 - Black - Multi-purpose polyurethane sealant/adhesive - Creates permanent elastic seal - Sandable/paintable - Non-corrosive - 10.1 fl oz - Image 2](https://m.media-amazon.com/images/I/71G8vEt0vxL.jpg)
![Sika Sikaflex-221 - Black - Multi-purpose polyurethane sealant/adhesive - Creates permanent elastic seal - Sandable/paintable - Non-corrosive - 10.1 fl oz - Image 3](https://m.media-amazon.com/images/I/81QDAJXLKBL.jpg)
![Sika Sikaflex-221 - Black - Multi-purpose polyurethane sealant/adhesive - Creates permanent elastic seal - Sandable/paintable - Non-corrosive - 10.1 fl oz - Image 4](https://m.media-amazon.com/images/I/71l8Iq5SN-L.jpg)
![Sika Sikaflex-221 - Black - Multi-purpose polyurethane sealant/adhesive - Creates permanent elastic seal - Sandable/paintable - Non-corrosive - 10.1 fl oz - Image 5](https://m.media-amazon.com/images/I/71RRO7yzOdL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by O***A on 6 October 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.

### ⭐⭐⭐⭐⭐ Review
*by H***M on 3 November 2023*

Very good

### ⭐⭐⭐⭐⭐ Review
*by A***X on 18 February 2026*

Buen sellador excelente para celular y buena. Marca

## Frequently Bought Together

- Sika Sikaflex-221 - Black - Multi-Purpose Polyurethane sealant/Adhesive - Creates Permanent Elastic Seal - Sandable/paintable - Non-Corrosive - 10.1 fl oz
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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-15*