---
product_id: 47943347
title: "GORILLA FILLER WEATHERPROOF EXPANDING FOAM FILLER"
brand: "gorilla filler"
price: "$34.21"
currency: USD
in_stock: true
reviews_count: 13
category: "Gorilla Filler"
url: https://www.desertcart.us/products/47943347-gorilla-filler-weatherproof-expanding-foam-filler
store_origin: US
region: United States of America
---

# 500ml high-expansion volume 100% waterproof seal cut, sand & paint ready GORILLA FILLER WEATHERPROOF EXPANDING FOAM FILLER

**Brand:** gorilla filler
**Price:** $34.21
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it tight, weather it right — don’t let gaps steal your comfort!

## Quick Answers

- **What is this?** GORILLA FILLER WEATHERPROOF EXPANDING FOAM FILLER by gorilla filler
- **How much does it cost?** $34.21 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/47943347-gorilla-filler-weatherproof-expanding-foam-filler)

## Best For

- gorilla filler enthusiasts

## Why This Product

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

## Key Features

- • **Versatile & Reliable:** Ideal for indoor/outdoor use, resisting damp and weather exposure
- • **Precision Application:** Easy-to-control nozzle prevents mess and overuse for professional results
- • **Compact & Ready-to-Use:** 500ml can fits any DIY toolkit for instant gap-filling power
- • **Fast Curing & Finish-Ready:** Expands quickly and hardens to a sandable, paintable surface
- • **Weatherproof & Durable Seal:** Seals large cracks in stone, wood, brick & metal with lasting protection

## Overview

The WEATHERPROOF EXPANDING FOAM FILLER is a 500ml aerosol foam designed to fill and seal large cracks and gaps in multiple materials including stone, wood, brick, and metal. It expands on application, cures quickly, and creates a waterproof, durable barrier that can be cut, sanded, and painted for a seamless finish. Perfect for both indoor and outdoor use, this product offers a reliable, mess-controlled solution for professional-grade insulation and sealing.

## Description

Product Description GORILLA FILLER WEATHERPROOF EXPANDING FOAM FILLER Directions 1. Shake the can well before use. 2. Cut the nozzle to desired size. 3. Hold can upside down and press trigger to dispense foam. 4. Fill gap or crack with foam. 5. Allow foam to expand and cure for the recommended time. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Safety Warning Users should follow general safety guidelines and manufacturer instructions for handling and using this product, including wearing protective clothing, working in a well-ventilated area, keeping the product away from eyes and mouth, and not ingesting it. See more

Review: A Game Changer for Home Repairs! - I recently tried the Gorilla Weatherproof Expanding Foam Filler, and I couldn't be more impressed! This product exceeded my expectations in every way. Easy to Use: The application was straightforward. The nozzle made it simple to control the flow, allowing me to fill gaps and cracks with precision. I appreciated the clear instructions, which made the process smooth even for a DIY novice like me. Impressive Expansion: The foam expands significantly once applied, filling voids efficiently. I used it around windows and doors, and it sealed the gaps perfectly. The result is a noticeable reduction in drafts, which I didn’t realize would make such a difference in my home’s comfort! Weatherproof Quality: I love that this filler is weatherproof. It stands up to rain and extreme temperatures without deteriorating, making it ideal for outdoor projects. It has held up beautifully, even after several heavy rains. Quick Drying: The drying time is relatively quick, allowing me to finish my projects without long waits. Within a couple of hours, I was able to trim the excess foam and paint over it. Strong and Durable: Once cured, the foam is solid and durable. It has a great bond, and I feel confident that it will last for years. Overall, Gorilla Weatherproof Expanding Foam Filler is an outstanding product that delivers on its promises. Whether you're sealing gaps in your home or tackling outdoor repairs, this filler is a reliable choice. Highly recommend it to anyone looking for a hassle-free solution to home insulation and sealing needs! Five stars! 🌟🌟🌟🌟🌟
Review: Gorilla Filler - Weatherproof Expanding Foam - This is a pretty straightforward product if you’ve done any DIY around the house. I’ve been using it to fill gaps around door frames and pipework, and it expands nicely to fill spaces without leaving huge messes. The nozzle is easy to control, so you don’t end up over-applying, which can be a problem with cheaper brands. The foam cures quickly and hardens well. It’s weatherproof, so I’ve been happy using it on areas that get damp or have a bit of exposure to the elements. Once it’s set, it sands down reasonably easily if you need a smoother finish. A couple of things to keep in mind - it’s a one-use can, so plan carefully before you start, and it can stick to surfaces more than you might expect. Gloves are essential, and a bit of masking tape helps if you’re working near wood or painted surfaces. For anyone needing to seal gaps or insulate small areas, this does the job without fuss. It’s functional, reliable, and does what it says on the tin. Not fancy, but dependable.

## Features

- Causes serious eye irritation.
- Causes skin irritation.
- Extremely flammable aerosol.
- Harmful to aquatic life with long lasting effects.
- 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 harm to breast-fed children.
- May cause respiratory irritation.
- Pressurised container: May burst if heated.
- Suspected of causing cancer.
- Waterproof expanding foam filler

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0015Q0UT4 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 896 in DIY & Tools ( See Top 100 in DIY & Tools ) 6 in Expanding Foams |
| Colour | White |
| Customer Reviews | 4.3 4.3 out of 5 stars (7,568) |
| Date First Available | 15 Nov. 2011 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Included Components | filler |
| Item Package Quantity | 1 |
| Item Weight | 530 g |
| Item model number | GF2 |
| Manufacturer | 151 Products |
| Part Number | LG Beauty LED Mask |
| Product Dimensions | 10 x 5 x 5 cm; 530 g |
| Size | 500 ml (Pack of 1) |
| Style | Single |

## Product Details

- **Age range (description):** All Ages
- **Brand:** Gorilla Filler
- **Product benefits:** Waterproof and Airtight Seal
- **Recommended uses for product:** Sealing gaps and cracks in bathroom fixtures or structures
- **Scent:** Unscented

## Images

![GORILLA FILLER WEATHERPROOF EXPANDING FOAM FILLER - Image 1](https://m.media-amazon.com/images/I/61VT3fuEgnL.jpg)

## Questions & Answers

**Q: I need to fill a gap between window and plaster, it’s less than a cm but runs the whole length of seal. Would this be suitable?**
A: The foam expands far too much for a small gap like that, excellent for larger jobs, i used it for a large gap between an outside wall and fence post.

**Q: Can I use this to secure a washing rotary in the ground?**
A: I'm guessing not this specific one but there are other foams that are specifically designed to do just that so you were not off thinking about foam. There is definitely one in Wickes called Postsaver Pro-set Rapid Set Lightweight Post Fix Resin Foam - 1.25kg

**Q: Would this stop water getting into my garage ie rainwater under the door?**
A: No, it's expanding foam. It fills gaps and holes with a sticky foam that then hardens to a waterproof barrier made of the same stuff that is used for packing in amazon deliverys. It has no real structure strength so if you stepped on it , or drove a car over it, it would break. It has no flexibility and woul glue the doors shut. It would stop leaks in gaps I.e. between a flat roof and a wall.

**Q: I have a noisy hollow window sill when it rains. Would this be any good to fill the cavity in the sill to stop the noise?**
A: Yes, I’d say that this would do the job for you.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A Game Changer for Home Repairs!
*by H***T on 16 October 2024*

I recently tried the Gorilla Weatherproof Expanding Foam Filler, and I couldn't be more impressed! This product exceeded my expectations in every way. Easy to Use: The application was straightforward. The nozzle made it simple to control the flow, allowing me to fill gaps and cracks with precision. I appreciated the clear instructions, which made the process smooth even for a DIY novice like me. Impressive Expansion: The foam expands significantly once applied, filling voids efficiently. I used it around windows and doors, and it sealed the gaps perfectly. The result is a noticeable reduction in drafts, which I didn’t realize would make such a difference in my home’s comfort! Weatherproof Quality: I love that this filler is weatherproof. It stands up to rain and extreme temperatures without deteriorating, making it ideal for outdoor projects. It has held up beautifully, even after several heavy rains. Quick Drying: The drying time is relatively quick, allowing me to finish my projects without long waits. Within a couple of hours, I was able to trim the excess foam and paint over it. Strong and Durable: Once cured, the foam is solid and durable. It has a great bond, and I feel confident that it will last for years. Overall, Gorilla Weatherproof Expanding Foam Filler is an outstanding product that delivers on its promises. Whether you're sealing gaps in your home or tackling outdoor repairs, this filler is a reliable choice. Highly recommend it to anyone looking for a hassle-free solution to home insulation and sealing needs! Five stars! 🌟🌟🌟🌟🌟

### ⭐⭐⭐⭐ Gorilla Filler - Weatherproof Expanding Foam
*by J***. on 5 March 2026*

This is a pretty straightforward product if you’ve done any DIY around the house. I’ve been using it to fill gaps around door frames and pipework, and it expands nicely to fill spaces without leaving huge messes. The nozzle is easy to control, so you don’t end up over-applying, which can be a problem with cheaper brands. The foam cures quickly and hardens well. It’s weatherproof, so I’ve been happy using it on areas that get damp or have a bit of exposure to the elements. Once it’s set, it sands down reasonably easily if you need a smoother finish. A couple of things to keep in mind - it’s a one-use can, so plan carefully before you start, and it can stick to surfaces more than you might expect. Gloves are essential, and a bit of masking tape helps if you’re working near wood or painted surfaces. For anyone needing to seal gaps or insulate small areas, this does the job without fuss. It’s functional, reliable, and does what it says on the tin. Not fancy, but dependable.

### ⭐⭐⭐⭐⭐ Unmatched Performance: GORILLA FILLER Weatherproof Expanding Foam Filler Excels
*by F***O on 22 August 2023*

The GORILLA FILLER Weatherproof Expanding Foam Filler has truly proven its worth as a top-tier solution for various projects. While it may come with a slightly higher price tag, its performance and results are unparalleled, making it a worthwhile investment in quality and durability. From the moment I started using this expanding foam filler, I could tell it was a cut above the rest. The foam's ability to expand and fill gaps is remarkable, ensuring a solid and weatherproof seal that holds up against the elements. Whether it's sealing gaps around windows, doors, or other openings, this filler delivers on its promise of weather resistance. What truly sets the GORILLA FILLER Weatherproof Expanding Foam Filler apart is its reliability and versatility. The foam adheres well to various surfaces and materials, and its durability ensures that it maintains its effectiveness over time. The fact that it is designed to withstand changes in temperature and weather conditions gives me confidence in its long-term performance. While I understand that the cost may be a concern for some, I believe that the benefits of this filler outweigh its price. The results it provides in terms of insulation, weatherproofing, and longevity make it a valuable addition to any DIY or construction project. In conclusion, the GORILLA FILLER Weatherproof Expanding Foam Filler has quickly become my go-to choice for sealing and insulating gaps in various applications. Its performance, reliability, and weatherproof properties make it an exceptional investment for anyone seeking a long-lasting solution. I'm thoroughly impressed with its performance and functionality, and I confidently award it a well-deserved five-star rating. If you're looking for expanding foam filler that excels in both quality and durability, the GORILLA FILLER Weatherproof Expanding Foam Filler is an excellent choice. Thank you, GORILLA FILLER, for delivering a product that sets the bar high and delivers exceptional results!

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-14*