---
product_id: 212012704
title: "Soudal Expanding Foam Gap Filler, Red, 500ml (2 x 250ml Packs) | Polyurethane foam, Genius Gun applicator, water barrier, multi-surface, construction use"
brand: "soudal"
price: "$50.76"
currency: USD
in_stock: true
reviews_count: 8
category: "Soudal"
url: https://www.desertcart.us/products/212012704-soudal-expanding-foam-gap-filler-red-500ml-2-x-250ml
store_origin: US
region: United States of America
---

# Low viscosity for smooth, precise application 500ml dual-pack for extended projects Compatible with 12+ materials for versatile use Soudal Expanding Foam Gap Filler, Red, 500ml (2 x 250ml Packs) | Polyurethane foam, Genius Gun applicator, water barrier, multi-surface, construction use

**Brand:** soudal
**Price:** $50.76
**Availability:** ✅ In Stock

## Summary

> 🧱 Seal the deal with Genius Gun precision – fill, fix, and insulate like a pro!

## Quick Answers

- **What is this?** Soudal Expanding Foam Gap Filler, Red, 500ml (2 x 250ml Packs) | Polyurethane foam, Genius Gun applicator, water barrier, multi-surface, construction use by soudal
- **How much does it cost?** $50.76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/212012704-soudal-expanding-foam-gap-filler-red-500ml-2-x-250ml)

## 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

- • **Water-Resistant Durability:** Protects and insulates with long-lasting, moisture-resistant polyurethane foam
- • **Low Viscosity, High Control:** Smooth spray ensures no mess, perfect for detailed DIY and professional jobs
- • **Trusted by Pros, Loved by DIYers:** Top-rated expanding foam with 4.6 stars and rave reviews—don’t get left behind
- • **Seamless Multi-Surface Compatibility:** Works effortlessly on wood, metal, glass, concrete, and more—your all-in-one gap solution
- • **Double the Power, Double the Precision:** Two 500ml cans with Genius Gun applicator for flawless filling every time

## Overview

The 2X Genius Gun Gap Filler 500ml Expanding Foam by Soudal offers a professional-grade, water-resistant polyurethane foam solution designed for precise application across over a dozen materials. Featuring a low viscosity formula and a Genius Gun applicator, this dual-pack ensures efficient, mess-free filling and insulation for walls and gaps, backed by a strong 4.6-star rating and trusted by both DIY enthusiasts and professionals.

## Description

2X Genius Gun Gap Filler 500ml Expanding Foam : desertcart.co.uk: DIY & Tools

Review: Foam filler. - Well worth the money, just what I needed for my loft.
Review: Top brand. - Top notch as always.

## Features

- Causes serious eye irritation.
- Causes skin irritation.
- Extremely flammable aerosol.
- Harmful if inhaled.
- May cause allergy or asthma symptoms or breathing difficulties if inhaled.
- May cause an allergic skin reaction.
- May cause damage to organs through prolonged or repeated exposure.
- May cause respiratory irritation.
- Pressurised container: May burst if heated.
- Suspected of causing cancer.
- Fill, Fix and Insulate
- Soudal

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07SGPLGX5 |
| Best Sellers Rank | 8,139 in DIY & Tools ( See Top 100 in DIY & Tools ) 38 in Expanding Foams |
| Brand | Soudal |
| Colour | Red |
| Compatible Material | Wood, Metal, Plastic, Ceramic, Glass, Rubber, Stone, Fabric, Concrete, Engineered Wood, Marble, Brick, Porcelain, Fiberglass, Faux Leather, PVC, Cardboard, Paper, Gemstone |
| Container Type | Aerosol Can |
| Customer Reviews | 4.6 out of 5 stars 259 Reviews |
| Item Form | Spray |
| Item Package Quantity | 2 |
| Item Volume | 500 Millilitres |
| Item form | Spray |
| Manufacturer | Soudal |
| Manufacturer Part Number | HU-XI-87 |
| Material | Polyurethane Foam |
| Model Number | EXPFOAM600 |
| Number of Pieces | 2 |
| Other Special Features of the Product | Genius Gun applicator |
| Special feature | Genius Gun applicator |
| Specific Uses For Product | wall |
| Specific uses for product | wall |
| Unit Count | 500.0 millilitre |
| Viscosity Level | Low |
| Water Resistance Level | Water Resistant |

## Images

![Soudal Expanding Foam Gap Filler, Red, 500ml (2 x 250ml Packs) | Polyurethane foam, Genius Gun applicator, water barrier, multi-surface, construction use - Image 1](https://m.media-amazon.com/images/I/51VVuCfksGL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Foam filler.
*by P***Y on 10 June 2026*

Well worth the money, just what I needed for my loft.

### ⭐⭐⭐⭐⭐ Top brand.
*by M***T on 19 July 2026*

Top notch as always.

### ⭐⭐⭐⭐⭐ Good control
*by M***Z on 2 July 2026*

I've used this before. It's easy to use and the trigger is reactive so a bit more control. It's durable as I used it to fill a hole in plaster and one by the extension tile. It dried quickly as it was hot weather. It could be kept for upto 6wks for other jobs so it is value for money.

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**Shop now:** [https://www.desertcart.us/products/212012704-soudal-expanding-foam-gap-filler-red-500ml-2-x-250ml](https://www.desertcart.us/products/212012704-soudal-expanding-foam-gap-filler-red-500ml-2-x-250ml)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-06*