---
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: "€ 654.44"
currency: EUR
in_stock: true
reviews_count: 13
category: "Sika"
url: https://www.desertcart.be/products/622288030-sikaflex-221-white-multi-purpose-polyurethane-sealant-adhesive-creates-permanent
store_origin: BE
region: Belgium
---

# Long-lasting age resistance Waterproof & NSF approved Multi-substrate bonding 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:** € 654.44
**Availability:** ✅ In Stock

## Summary

> 🔗 Seal the deal with strength and style—don’t let your projects settle for less!

## 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?** € 654.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/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

- • **Ultimate Versatility:** Bonds seamlessly to metal, plastic, wood & glass for all your project needs.
- • **Durability That Lasts:** Engineered to resist aging, seawater, acids & caustics—built for the long haul.
- • **Safe for Critical Use:** NSF-approved for drinking water & food production environments—trust without compromise.
- • **Effortless Application:** Cartridge-ready for electric, pneumatic, or manual guns—precision meets convenience.
- • **Flexible & Permanent Seal:** Elastic yet strong bond that withstands vibration and movement—perfect for automotive & industrial.

## Overview

Sika Sikaflex-221 is a professional-grade, white polyurethane sealant and adhesive designed for permanent elastic seals across multiple substrates. It offers superior age and chemical resistance, is waterproof, NSF-approved for safe use in drinking water and food environments, and comes in a convenient cartridge for precise application. Ideal for automotive, industrial, and building projects requiring durable, flexible bonding.

## 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: quality product - glad I found it - used this for a repair that needed waterproof and permanent - this applied on easy and so far 100% resolved issue! I used AI to recommend product off desertcart after uploading to AI a photo of the damage and this is what it recommended.
Review: Professional grade sealant. - Before I retired, my company was excellent at ceiling water leaks. Sika was the best product in areas exposed to ultraviolet light. I recently used it when installing a new skylight on my RV. Knowing that it’s difficult to clean up, I blue taped all edges and had rags with solvent nearby. The job went very smoothly, I was impressed how easily it adhered and spread evenly. Cleanup turned out to be no problem for me.

## 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 | #780 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Polyurethane Adhesives #12 in Urethane Adhesives |
| Brand | SIKA |
| Brand Name | SIKA |
| Color | White |
| Customer Reviews | 4.6 out of 5 stars 2,921 Reviews |
| Global Trade Identification Number | 10033886005095 |
| Included Components | Sealant |
| Item Form | Oz |
| Liquid Volume | 10.1 Fluid Ounces |
| Manufacturer | SIKA |
| Material Type | Polyurethane |
| Model | 90891 |
| Number of Items | 24 |
| Part Number | 90891 |
| 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)
![Sikaflex-221 - White - 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/71Vz0HrtNkL.jpg)
![Sikaflex-221 - White - 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)
![Sikaflex-221 - White - 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/71k8QM9HcbL.jpg)
![Sikaflex-221 - White - 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/71l8Iq5SN-L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ quality product - glad I found it
*by D***C on May 19, 2026*

used this for a repair that needed waterproof and permanent - this applied on easy and so far 100% resolved issue! I used AI to recommend product off amazon after uploading to AI a photo of the damage and this is what it recommended.

### ⭐⭐⭐⭐⭐ Professional grade sealant.
*by R***E on April 1, 2026*

Before I retired, my company was excellent at ceiling water leaks. Sika was the best product in areas exposed to ultraviolet light. I recently used it when installing a new skylight on my RV. Knowing that it’s difficult to clean up, I blue taped all edges and had rags with solvent nearby. The job went very smoothly, I was impressed how easily it adhered and spread evenly. Cleanup turned out to be no problem for me.

### ⭐⭐⭐⭐⭐ Great caulk!
*by J***R on May 26, 2026*

This stuff is robust. It’s easy to apply and finish, looks great and holds up to standing water (so far). On the pricier side but you get what you pay for, it should hold up!

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-06-08*