---
product_id: 49130125
title: "Soudal Genius Gun Gap Filler 500ml Expanding Foam"
brand: "soudal"
price: "₨14429"
currency: LKR
in_stock: true
reviews_count: 8
url: https://www.desertcart.lk/products/49130125-soudal-genius-gun-gap-filler-500ml-expanding-foam
store_origin: LK
region: Sri Lanka
---

# High filling capacity Acoustic insulation High thermal insulation Soudal Genius Gun Gap Filler 500ml Expanding Foam

**Brand:** soudal
**Price:** ₨14429
**Availability:** ✅ In Stock

## Summary

> 🛠️ Fill the gaps, seal the deal!

## Quick Answers

- **What is this?** Soudal Genius Gun Gap Filler 500ml Expanding Foam by soudal
- **How much does it cost?** ₨14429 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/49130125-soudal-genius-gun-gap-filler-500ml-expanding-foam)

## Best For

- soudal enthusiasts

## Why This Product

- Trusted soudal brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Space Saver:** Compact dimensions (20 x 15 x 10 cm) make storage a breeze.
- • **Seal the Deal:** Experience superior thermal and acoustic insulation for your spaces.
- • **Eco-Friendly Choice:** 500ml of expanding foam for efficient and sustainable filling.
- • **Genius in Your Hands:** Effortlessly apply with the innovative Genius Gun applicator.
- • **Stick with Confidence:** Enjoy excellent adhesion for a long-lasting seal.

## Overview

The Soudal Genius Gun Gap Filler is a 500ml expanding foam designed for high thermal and acoustic insulation. With its innovative applicator and excellent adhesion, it provides a reliable solution for filling gaps and ensuring energy efficiency in your home or office.

## Description

Product description               p>Gap Filling & Exp. Foam Genius - 500mlbr />All purpose, hand held gap filling expanding PU Foam with patented "Genius Gun" application system./p> p>Re-usable up to 6 weeks, the Genius Gun applicator enables high precision, single handed use./p> p>Ideally suited for the installation of doors and windows, the sealing of pipe penetrations and for the creation of sound-proof sealing, Free of CFC's and HCFC's. br />Very low emission value once fully cured. /p> p>Featuresbr />High thermal & acoustic insulationbr />High filling capacitybr />Good adhesionbr />Genius Gun applicatorbr />Single handed operationbr />Fast curingbr />Expansion rate - 35 times initial volume/p>                  Legal Disclaimer               Safety gloves are included with this item, these must be worn while using the expanding foam.

## Features

- High thermal & acoustic insulation
- High filling capacity
- Good adhesion
- Genius Gun applicator

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 20 x 15 x 10 cm; 630 g |
| Part number | 123895 |
| Item volume | 500 Millilitres |
| Manufacturer | Soudal |
| Item model number | 0 |
| ASIN | B00FPK94IE |

## Images

![Soudal Genius Gun Gap Filler 500ml Expanding Foam - Image 1](https://m.media-amazon.com/images/I/61qmYDj5PoL.jpg)

## Questions & Answers

**Q: Can this be reused for more than one job?  (unlike others that have to use the whole can in one go)**
A: Hi Simon, To me it seems all DIY foams, ie non gun types are only of use for one day. Although with this one you could control the foam and do different jobs, the tube clogged up and the foam went solid, so that you could not continue to use it unless you could clear the tube somehow. I managed to clear it and use it several times hours apart on the same day but had no confidence in it being something you could use one day and then store for a month for example before getting it out for use again. If you want to do that I think you need to get on to the gun type where you fit your reusable gun on to a can. Yes this can is better, it gives you the chance to use it on several jobs spread out over a day but to put away in storage for use at a later date I don't think so. I don't think I will buy it again as the cost was a fair bit more than others but apart from the control, its not really that much different to cheap cans from what I could tell. Hope that helps you.

**Q: We had new windows put in and they left a bad bad job. Every window has a gap around them and causes cold draughts. Will this stop the problem.**
A: Hi Antony, If you just want to fill gaps and stop draughts then yes this will do it although beware many people find them messy to work with, ie the foam can keep coming out a little even after you stop pressing the trigger. I use a gun type which is much more controllable but not worth getting unless you are going to use foam often. One thing to bare in mind, foam isnt great if it gets wet so if you think it will get any exposure to rain etc then there are 2 types of foam, there is open cell and closed cell. This will be open cell meaning it will not get as hard and it will have tiny air pockets which is fine for many tasks but if you want a bit of moisture resistance and a stronger foam then closed cell will be better but it will be more expensive. I find most closed cell foams dont expand as much as open cell, which in some cases is preferrable.

I hope that is of some help to you

Kind Regards

Demo

**Q: Does this give off any fumes once dry? And is it safe around hot radiator pipes? Thanks.**
A: Is it safe around central heating pipes?

**Q: is this hard when set ?**
A: Goes hard but can be cut with a  Stanley knife. Dosen’t go hard as brick! Basically strong harder foam.  Insulated The gap in my shed well.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product!
*by T***G on 13 March 2025*

Easy to use, the long nozzle allows deep penetration of gaps and holes. The foam expands well (around 35 times initial volume according to the description) and cures quite quickly. Can easily be cut with a knife or saw once hardened.Slightly more expensive than some (Gorilla expanding foam is £6.39), but a good product, so generally worth the price.Reusable nozzle is a good idea, but I'm not sure if you can buy additional ones.Was slightly disturbed by the 10 different warnings that are listed in the description, until I saw that a lot of these products all have the same warnings, so it's no better or worse than the rest from that perspective.Would buy again if needed, but for now this can should last a while.

### ⭐⭐⭐⭐⭐ Seal and Insulate with Ease: Soudal Genius Gun Gap Filler Expanding Foam
*by F***O on 17 August 2023*

The Soudal Genius Gun Gap Filler Expanding Foam has exceeded my expectations in every way, and I am thoroughly impressed with its performance and versatility. This 500ml can of expanding foam offers a level of convenience and effectiveness that's unmatched, making it an indispensable tool for various projects.From the moment I started using this expanding foam, I could tell it was a cut above the rest. The genius gun applicator simplifies the application process, allowing for precise control and even distribution. The foam expands quickly to fill gaps and voids, creating a strong and durable seal that's both airtight and watertight.What truly sets the Soudal Genius Gun Gap Filler Expanding Foam apart is its versatility. It can be used for a wide range of applications, from insulating gaps around windows and doors to filling cracks and crevices in walls. The foam adheres well to various surfaces and dries quickly, reducing the need for lengthy wait times.The performance of this expanding foam is truly remarkable. It expands to fill even the smallest gaps, providing effective insulation and preventing drafts. The cured foam is easy to trim and shape if necessary, allowing for a neat and professional finish.In conclusion, the Soudal Genius Gun Gap Filler Expanding Foam has quickly become my go-to choice for sealing and insulating projects. Its ease of use, effectiveness, and versatility make it an invaluable addition to any toolkit. I'm thoroughly impressed with its performance and functionality, and I confidently award it a well-deserved five-star rating. If you're seeking a reliable and high-quality expanding foam solution, the Soudal Genius Gun Gap Filler is an exceptional product that delivers exceptional results. Thank you, Soudal, for creating such a top-notch expanding foam solution!

### ⭐⭐⭐⭐⭐ Efficient and Easy to Use Expanding Foam!
*by P***S on 26 September 2024*

I recently purchased the Soudal Genius Gun Gap Filler, and I couldn’t be happier with its performance! This 500ml can is perfect for tackling gaps and cracks around the house. The expanding foam is incredibly effective for insulation and sealing, making it a must-have for any DIY project.The application process is a breeze. The Genius Gun mechanism allows for precise control, making it easy to fill even the tightest spaces without making a mess. I appreciate that the foam expands significantly after application, so a little goes a long way. It adhered well to various surfaces and created a solid seal that has held up beautifully over time.One of the things I love most is how quickly it cures. In just a few hours, it’s firm enough to cut and shape, allowing me to finish my projects without waiting around. Plus, the foam can be easily trimmed to fit my needs, making it versatile for different applications.

## Frequently Bought Together

- Soudal Genius Gun Gap Filler 500ml Expanding Foam
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- UniBond 1426052 Interior 365g 1963627 No More Nails Original Cartridge 300ml, 1 x 365 g

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-22*