---
product_id: 187187320
title: "Sikaflex – 221 Strong Adhesive Sealant – Multi-Purpose Application – Sandable/Paintable – Grey – 300ml"
brand: "sika"
price: "R$503"
currency: BRL
in_stock: true
reviews_count: 10
category: "Sika"
url: https://www.desertcart.com.br/products/187187320-sikaflex-221-strong-adhesive-sealant-multi-purpose-application-sandable-paintable
store_origin: BR
region: Brazil
---

# 45 min open time permanent elastic strength multi-surface bonding Sikaflex – 221 Strong Adhesive Sealant – Multi-Purpose Application – Sandable/Paintable – Grey – 300ml

**Brand:** sika
**Price:** R$503
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal it strong, seal it smart — the pro’s choice for lasting bonds!

## Quick Answers

- **What is this?** Sikaflex – 221 Strong Adhesive Sealant – Multi-Purpose Application – Sandable/Paintable – Grey – 300ml by sika
- **How much does it cost?** R$503 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/187187320-sikaflex-221-strong-adhesive-sealant-multi-purpose-application-sandable-paintable)

## 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

- • **Durable Flexibility:** Cures into a permanently elastic seal that resists cracking and sagging.
- • **Extended Work Window:** Stay in control with a 45-minute open time for precise application.
- • **Food-Safe Confidence:** NSF-approved for incidental food contact—professional-grade safety.
- • **Color-Coded Versatility:** Available in Black, White, Brown, and Light Grey to match any project.
- • **Universal Bonding Power:** Seamlessly adheres to metals, plastics, ceramics, and painted surfaces.

## Overview

Sikaflex 221 is a professional-grade polyurethane adhesive sealant offering up to 45 minutes of workable open time. It bonds strongly and flexibly to a wide range of materials including metal, plastic, and ceramics, curing into a durable, elastic seal that can be sanded and painted. NSF-approved for incidental food contact and available in multiple colors, it’s engineered for demanding applications where reliability and longevity are non-negotiable.

## Description

From the manufacturer Mandatory to read the product and safety data sheets before using the product for important advice. Ensure surfaces are clean, dry and free from grease, oil and dust. Apply the correct pre-treatment steps. If further assistance is required please contact SIKA technical services.

Review: Extremely Strong Adhesion, Professional Quality - This is not comparable to standard DIY sealants you might find in typical hardware stores. I’ve used Sikaflex 221 several times over the past year for various automotive and general fixing jobs, and the performance is far superior to basic alternatives. The adhesive strength is excellent. Once applied, it bonds very firmly and creates a durable, flexible seal. It works well on multiple surfaces including metal and plastic, making it ideal for vehicle modifications and exterior applications. It’s especially useful where a strong, permanent bond is required. After curing, it remains slightly flexible, which helps prevent cracking due to vibration or movement. One important thing to be aware of is how sticky it is. If it gets on your hands, tools, or unintended surfaces, it can be difficult to remove. Careful application and preparation are essential. Pros: • Extremely strong adhesion • Professional-grade quality • Works on multiple surfaces • Flexible once cured • Ideal for automotive and outdoor use Cons: • Difficult to remove if applied accidentally • Requires careful handling during application Overall: A high-quality adhesive and sealant that provides excellent strength and durability. Ideal for automotive, DIY, and permanent bonding applications where reliability is important.
Review: strong sticky and long lasting - This is advertised as a strong adhesive sealant and that's exactly what it is. I first used this for work as an adhesive to stick woven polyethylene slabs to an outer polypropylene shell. Both plastics had to be surface activated but after that the sikaflex stuck them so tight they couldn't be pulled apart. I've since used it to stick door seals to my Land Rover and to seal a leak in the roof. This is fantastic stuff, I've now always got some for those jobs where I don't trust ordinary sealant. The only downside is that it doesn't last very long (goes off in the tube) once opened compared to ordinary bathroom silicone. A note of warning- don't use this if you anticipate wanting to undo the thing quite soon.

## Features

- Contains isocyanates. May produce an allergic reaction.
- May cause allergy or asthma symptoms or breathing difficulties if inhaled.
- May cause damage to organs through prolonged or repeated exposure.
- PROFESSIONAL USE PRODUCT – This product is suitable for experienced professional users only.
- LONG-OPEN TIME – Sikaflex 221 remains workable for up to 45 minutes once open and will develop a skin in 60 minutes, providing temperatures are between 5˚C and 40˚C.
- VERSATILE – A multi-purpose sealant and adhesive with high adhesive strength. Bonds well to a wide variety of substrates, including metals, ceramics, plastics and painted materials.
- PERMANENTLY ELASTIC – Cures using ambient moisture into an elastic but permanent seal that does not sag and can be sanded and painted as needed.
- FOOD SAFE – NSF-Approved for incidental food contact.
- AVAILABLE IN MULTIPLE COLOURS – Available in Black, White, Brown and Light Grey.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GBYFL5Y |
| Best Sellers Rank | 1,610 in DIY & Tools ( See Top 100 in DIY & Tools ) 35 in Sealers |
| Brand | Sika |
| Colour | Grey |
| Compatible Material | Metal, Porcelain |
| Country Of Origin | Switzerland |
| Customer Reviews | 4.6 out of 5 stars 680 Reviews |
| Included Components | 1x Cartridge |
| Item Dimensions | 50 x 50 x 230 millimetres |
| Item Form | Paste |
| Item Type Name | Sealant and Adhesive |
| Item Weight | 0.45 Grams |
| Item dimensions L x W x H | 50 x 50 x 230 millimetres |
| Item weight | 0.45 Grams |
| Manufacturer | Sika Everbuild |
| Manufacturer Part Number | SKFLEX221GY |
| Material | Polyurethane |
| Model Number | 221 |
| Number of Items | 1 |
| Style | Compact |
| Style Name | Compact |
| Surface Recommendation | Window |
| Unit Count | 300.0 millilitre |
| Water Resistance Level | Water Resistant |
| Water resistance level | Water Resistant |

## Product Details

- **Brand:** Sika
- **Item dimensions L x W x H:** 50 x 50 x 230 millimetres
- **Item weight:** 0.45 Grams
- **Material:** Polyurethane
- **Style:** Compact

## Images

![Sikaflex – 221 Strong Adhesive Sealant – Multi-Purpose Application – Sandable/Paintable – Grey – 300ml - Image 1](https://m.media-amazon.com/images/I/61SFNQD1hfL.jpg)
![Sikaflex – 221 Strong Adhesive Sealant – Multi-Purpose Application – Sandable/Paintable – Grey – 300ml - Image 2](https://m.media-amazon.com/images/I/81b2EKbaTxL.jpg)
![Sikaflex – 221 Strong Adhesive Sealant – Multi-Purpose Application – Sandable/Paintable – Grey – 300ml - Image 3](https://m.media-amazon.com/images/I/81nhp0FUYDL.jpg)
![Sikaflex – 221 Strong Adhesive Sealant – Multi-Purpose Application – Sandable/Paintable – Grey – 300ml - Image 4](https://m.media-amazon.com/images/I/81e2Vzx2JcL.jpg)
![Sikaflex – 221 Strong Adhesive Sealant – Multi-Purpose Application – Sandable/Paintable – Grey – 300ml - Image 5](https://m.media-amazon.com/images/I/81cuXQQf8DL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Extremely Strong Adhesion, Professional Quality
*by C***L on 16 February 2026*

This is not comparable to standard DIY sealants you might find in typical hardware stores. I’ve used Sikaflex 221 several times over the past year for various automotive and general fixing jobs, and the performance is far superior to basic alternatives. The adhesive strength is excellent. Once applied, it bonds very firmly and creates a durable, flexible seal. It works well on multiple surfaces including metal and plastic, making it ideal for vehicle modifications and exterior applications. It’s especially useful where a strong, permanent bond is required. After curing, it remains slightly flexible, which helps prevent cracking due to vibration or movement. One important thing to be aware of is how sticky it is. If it gets on your hands, tools, or unintended surfaces, it can be difficult to remove. Careful application and preparation are essential. Pros: • Extremely strong adhesion • Professional-grade quality • Works on multiple surfaces • Flexible once cured • Ideal for automotive and outdoor use Cons: • Difficult to remove if applied accidentally • Requires careful handling during application Overall: A high-quality adhesive and sealant that provides excellent strength and durability. Ideal for automotive, DIY, and permanent bonding applications where reliability is important.

### ⭐⭐⭐⭐⭐ strong sticky and long lasting
*by P***Y on 13 July 2025*

This is advertised as a strong adhesive sealant and that's exactly what it is. I first used this for work as an adhesive to stick woven polyethylene slabs to an outer polypropylene shell. Both plastics had to be surface activated but after that the sikaflex stuck them so tight they couldn't be pulled apart. I've since used it to stick door seals to my Land Rover and to seal a leak in the roof. This is fantastic stuff, I've now always got some for those jobs where I don't trust ordinary sealant. The only downside is that it doesn't last very long (goes off in the tube) once opened compared to ordinary bathroom silicone. A note of warning- don't use this if you anticipate wanting to undo the thing quite soon.

### ⭐⭐⭐⭐⭐ Professional grade product at reasonable prices
*by B***R on 6 February 2026*

Sika products are seriously good products, expensive but worth every penny. I used this to bond 12mm marine ply to line the tops of the doors on my van , use disposable gloves because it will tack and stick to pretty much everything…. Its leak prevention is excellent, easy to use and very effective. Be warned though it sticks to everything so be careful you don’t get it on anything you don’t want it on because it’s almost impossible to remove easily. Sika make a lot of very specific products so do a little research first to find the exact product for your particular task …… you will be surprised at what they actually provide. This is professional grade products, very strong and can be used as a sealer as well as an adhesive. I found that if you wrap up the tube after use and seal it I can actually get a few days use out of the tube before it finally hardens..

## Frequently Bought Together

- Sika Sikaflex 221 Adhesive Sealant, Grey, 300 ml
- Sika Flex 522 Caravan Steel Grey 300 ml STP Universal Adhesive, Sealant, UV

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.br/products/187187320-sikaflex-221-strong-adhesive-sealant-multi-purpose-application-sandable-paintable](https://www.desertcart.com.br/products/187187320-sikaflex-221-strong-adhesive-sealant-multi-purpose-application-sandable-paintable)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-07-16*