---
product_id: 47943347
title: "WEATHERPROOF EXPANDING FOAM FILLER"
brand: "gorilla filler"
price: "¥4124"
currency: JPY
in_stock: true
reviews_count: 9
category: "Gorilla Filler"
url: https://www.desertcart.jp/products/47943347-weatherproof-expanding-foam-filler
store_origin: JP
region: Japan
---

# Expands to fill large gaps Waterproof & weatherproof seal Cut, sand, paint & finish-ready WEATHERPROOF EXPANDING FOAM FILLER

**Brand:** gorilla filler
**Price:** ¥4124
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it. Weather it. Own it.

## Quick Answers

- **What is this?** WEATHERPROOF EXPANDING FOAM FILLER by gorilla filler
- **How much does it cost?** ¥4124 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/47943347-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

- • **DIY-Friendly Finish:** Can be cut, sanded, and painted for a seamless, professional look every time.
- • **Fast-Track Your Repairs:** Quick curing time lets you trim and paint within hours, speeding up your project timeline.
- • **Built to Brave the Elements:** Weatherproof formula ensures lasting durability against rain, wind & temperature extremes.
- • **Reliable & Airtight Barrier:** Creates a solid, airtight, and waterproof seal that improves insulation and energy efficiency.
- • **Seal Every Crack Like a Pro:** Expands on application to fill large gaps in stone, wood, brick & metal with precision.

## Overview

The WEATHERPROOF EXPANDING FOAM FILLER is a 500ml aerosol foam that expands to fill and seal large cracks and gaps in multiple materials including stone, wood, brick, and metal. Its waterproof and weatherproof properties make it ideal for both indoor and outdoor repairs. The foam cures quickly and can be cut, sanded, and painted for a flawless finish, providing a durable, airtight, and energy-efficient seal that stands up to harsh weather conditions.

## 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: Seems OK - Haven't used yet. Fast free delivery (Prime), sensible packaging. I think it will be fine.

## 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 |
| Bathwater Additive Type | Bubble Bath |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 554 in DIY & Tools ( See Top 100 in DIY & Tools ) 5 in Expanding Foams |
| Colour | White |
| Customer Reviews | 4.2 4.2 out of 5 stars (7,443) |
| 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 form | foam |
| Item model number | GF2 |
| Item weight | 530 Grams |
| Manufacturer | 151 Products |
| Material feature | Expands, hardens, waterproof, airtight, paintable, sandable |
| Number of items | 1 |
| Part Number | LG Beauty LED Mask |
| Product Dimensions | 10 x 5 x 5 cm; 530 g |
| Size | 500 ml (Pack of 1) |
| Skin type | All |
| Style | Single |
| Unit count | 500.0 millilitre |

## 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

![WEATHERPROOF EXPANDING FOAM FILLER - Image 1](https://m.media-amazon.com/images/I/41A5kARBIWS.jpg)
![WEATHERPROOF EXPANDING FOAM FILLER - Image 2](https://m.media-amazon.com/images/I/51MiQtToXcS.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! 🌟🌟🌟🌟🌟

### ⭐⭐⭐⭐ Seems OK
*by S***B on 28 January 2026*

Haven't used yet. Fast free delivery (Prime), sensible packaging. I think it will be fine.

### ⭐⭐⭐⭐⭐ Big worm
*by A***. on 29 November 2025*

Great product but expanded more than I expected. I’ve had the waste pipe work moved outside. It used to go through the house and out the roof. I was left with an open pipe in the roof. I’m going to get the roof replaced in the spring so wanted a short term fix better than plastic bag stuffed in the hole. I blocked the bottom of the pipe with a bit of ply and proceeded to squirt the whole time into the void. Great job done. As I was leaving I looked up and the foams expanded about three foot out the hole. It’s now a talking point with the neighbours. I could saw it off but I’ll leave it

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-04*