---
product_id: 519438244
title: "Sikaflex-221, Gray, multi-purpose sealant/adhesive, polyurethane fast curing sealant, 10.1 fl. oz Cartridge"
brand: "sika"
price: "€ 55.00"
currency: EUR
in_stock: true
reviews_count: 1
url: https://www.desertcart.gr/products/519438244-sikaflex-221-gray-multi-purpose-sealant-adhesive-polyurethane-fast-curing
store_origin: GR
region: Greece
---

# Fast curing 1-C polyurethane Weather-resistant durability Multi-surface bonding power Sikaflex-221, Gray, multi-purpose sealant/adhesive, polyurethane fast curing sealant, 10.1 fl. oz Cartridge

**Brand:** sika
**Price:** € 55.00
**Availability:** ✅ In Stock

## Summary

> 🔗 Seal the deal with Sikaflex-221 — where strength meets speed!

## Quick Answers

- **What is this?** Sikaflex-221, Gray, multi-purpose sealant/adhesive, polyurethane fast curing sealant, 10.1 fl. oz Cartridge by sika
- **How much does it cost?** € 55.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/519438244-sikaflex-221-gray-multi-purpose-sealant-adhesive-polyurethane-fast-curing)

## 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

- • **Finish Like a Pro:** Sands and paints easily for a flawless, professional finish every time.
- • **Rapid Cure, Zero Wait:** Fast 1-C formulation seals and bonds in record time, so your projects keep moving.
- • **Safe for What Matters:** NSF approved for drinkable water and incidental food contact—performance with peace of mind.
- • **Versatile Adhesion Master:** Bonds seamlessly to wood, metal, ceramics, plastics, and more—one sealant to rule them all.
- • **Built to Brave the Elements:** Superior weathering resistance means your seals stay strong rain or shine.

## Overview

Sikaflex-221 is a fast-curing, gray polyurethane sealant and adhesive designed for permanent elastic seals with high adhesive strength. Its 1-C formulation is NSF approved for potable water and incidental food contact, weather-resistant, low VOC, and bonds effectively to a wide range of substrates including wood, metals, ceramics, and plastics. Ideal for panel sealing, roofing, flooring, and general construction applications, it also sands and paints easily for a professional finish.

## 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.

## Features

- Highly elastic and multi-purpose, Sikaflex-221 is suitable for making permanent elastic seals of high adhesive strength.
- PERFORMANCE: 1-C formulation. NSF approved for drinkable water and incidental food contact. Can be sanded and painted.
- DURABILITY: Resistant to weathering exposure. Lower VOC’s.
- SUPPORTS: Bonds well to a wide variety of substrates: wood, metals, metal primers and paint coatings (2-c systems), ceramic materials and plastics.
- APPLICATION: Used for the panel sealing and bonding, root base sealing, nacelle sealing, tower sealing, installation & perimeter sealing, general metal construction sealing, metal panels, roofing, flooring bonding, cabinets, flooring and trim.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Sika |
| Brand | SIKA |
| Model | Sikaflex 221 |
| Product Dimensions | 30.48 x 5.08 x 30.48 cm; 350 g |
| Item model number | SIKA-90892 |
| Manufacturer Part Number | 90892 |
| Special Features | Stain resistant |
| Item Weight | 350 g |

## Product Details

- **Colour:** Aluminum Gray
- **Brand:** SIKA
- **Item weight:** 350 Grams
- **Liquid volume:** 10.3 Fluid Ounces
- **Full cure time:** 5-7 Days

## Images

![Sikaflex-221, Gray, multi-purpose sealant/adhesive, polyurethane fast curing sealant, 10.1 fl. oz Cartridge - Image 1](https://m.media-amazon.com/images/I/51dlzDcXfvL.jpg)

## Available Options

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

## Questions & Answers

**Q: Would this work as a sealant on the abs fitting that inserts into the rv poly holding tank outlet and has a hose clamp?**
A: Re UV protection.  It is widely used on RV roofs so presumably is at least UV resistant.  That said, I've found that it lasts only about 3 years on the roof of an RV that sits out in the sun.  It is necessary to check it annually and rough up the existing material and add more where cracks have developed.  The cracks are in part from expansion and contraction of the underlying parts, but do work their way up through the Sikaflex 221 and result in a leak of the crack is not repaired.  I inspect my RV roof annually and usually need to do some repair to the older Sikaflex-221.

**Q: Is this suitable for bonding a window into an aluminium u-channel on an rv? also, can i remove it if need be? thank you**
A: Precisely the application to which I put the material to use in - sealing RV windshield to aluminum and fibreglass.  Has worked flawlessly for 4 years.  Easy to remove before cure; extremely difficult to fully remove after cure.

**Q: Can someone verify if inventory issue fixed, ordered two blacks and received both white (stamped inside bottom of tube)**
A: I have always received the correct color ordered (fulfilled by Amazon).  Contact the Seller directly (or whoever is fulfilling an order on their behalf), to confirm inventoried colors.  I would request a refund for any product that is not what you ordered.

**Q: Do you recommend this for filling in concrete floor cracks? Will it self-level?**
A: Not sure on concrete it may hold up but it will not self-level

## Customer Reviews

### ⭐⭐⭐⭐⭐ As advertised
*by A***R on 10 April 2025*

Good quality

## Frequently Bought Together

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-29*