---
product_id: 4215416
title: "GREAT STUFF Pond & Stone Gap Filler | Insulating Foam Sealant, 12 oz. Can – Black"
brand: "great stuff"
price: "A$55"
currency: AUD
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.au/products/4215416-great-stuff-pond-and-stone-gap-filler-insulating-foam-sealant
store_origin: AU
region: Australia
---

# Water-resistant & fish-safe seal Black foam blends with natural stone 1" expansion for perfect gap fill GREAT STUFF Pond & Stone Gap Filler | Insulating Foam Sealant, 12 oz. Can – Black

**Brand:** great stuff
**Price:** A$55
**Availability:** ✅ In Stock

## Summary

> 🖤 Seal the gap, not your style — blend in, stand out!

## Quick Answers

- **What is this?** GREAT STUFF Pond & Stone Gap Filler | Insulating Foam Sealant, 12 oz. Can – Black by great stuff
- **How much does it cost?** A$55 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/4215416-great-stuff-pond-and-stone-gap-filler-insulating-foam-sealant)

## Best For

- great stuff enthusiasts

## Why This Product

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

## Key Features

- • **Fast, Reliable Curing:** Fully cures in 8 hours—speed up with a water mist for same-day project completion.
- • **Invisible Integration:** Black foam seamlessly blends with stones and shadows for a natural look.
- • **Eco-Friendly Aquatic Safe:** Safe for ornamental fish and plants, perfect for ponds, waterfalls, and water features.
- • **Durable Water-Shedding Seal:** Creates airtight, waterproof bonds that last years in moist outdoor environments.
- • **Effortless Precision Application:** Straw applicator delivers exact foam amounts, even in tight spots.

## Overview

GREAT STUFF Pond & Stone Gap Filler is a black, closed-cell polyurethane foam sealant designed for outdoor water features. Expanding up to 1 inch, it bonds to porous and nonporous surfaces without mortar, creating a durable, water-resistant, and airtight seal. Its black color camouflages naturally among stones, while curing in 8 hours to direct water flow safely around ponds and landscaping. Safe for aquatic life, it’s the go-to solution for professional-grade, long-lasting pond and stone gap filling.

## Description

Product Description GREAT STUFF Pond & Stone is a polyurethane-based foam adhesive designed for use in water features. By expanding to fill gaps and cracks, it works as a water-resistant sealant to help direct the flow of water in waterfall, pond and streambed construction to go where you want it to go, not under or behind rocks. The foam is black to blend in among the stones and shadows. It cures in 8 hours to create a water-shedding bond for stone, rock, masonry, concrete and most other building materials. It's perfect for water features from fountains to koi ponds because it's safe for fish. From the Manufacturer GREAT STUFF Pond & Stone is a polyurethane-based foam adhesive designed for use in water features. By expanding to fill gaps and cracks, it works as a water-resistant sealant to help direct the flow of water in waterfall, pond and streambed construction to go where you want it to go, not under or behind rocks. The foam is black to blend in among the stones and shadows. It cures in 8 hours to create a water-shedding bond for stone, rock, masonry, concrete and most other building materials. It's perfect for water features from fountains to koi ponds because it's safe for fish.

Review: Reliable and Effective Insulation Foam - The Great Stuff Pro Gaps & Cracks Insulating Foam Sealant has been a reliable product for my home improvement projects. This 24 oz can provides a generous amount of foam, which is great for sealing gaps and cracks around the house. The orange color makes it easy to see where the foam has been applied, ensuring complete coverage. One of the things I like most about this product is its ability to expand and fill even the smallest gaps, providing excellent insulation. It adheres well to various surfaces, including wood, metal, and masonry, and creates a solid seal that lasts. The foam dries quickly, allowing me to move on to the next step of my project without much delay. A minor downside is that the foam can be a bit messy if not applied carefully, but using the right applicator gun helps manage this. For anyone tackling insulation tasks, this foam sealant is an excellent choice. Its expansive properties, strong adhesion, and ease of use make it a valuable tool for sealing and insulating efficiently.
Review: This stuff is great ;) - Pros Absolutely adore great stuff. I’ve never used it in construction or plumbing settings, but it works great in aquariums/terrariums! I made the base of a terrarium background with it (WIP) and it held on well!! You can cut it off with a blade very easily, as well as just pull and scrape with your fingers. Very good at being waterproof though!! Cons If you don’t use the whole can in one sitting, it’s really hard to get the rest out (in my experience). I had to get a whole new nozzle just to use a can that was half empty, and even then it struggled. The insides were all dry foamed up! But if you use it all, great product. (And maybe I’m just dumb and didn’t do the reuse part right lol)

## Features

- POND & STONE GAP FILLER. This black colored closed-cell polyurethane foam sealant bonds to porous and nonporous rocks or stones without the use of mortar. Expanding up to 1", create a long-lasting, airtight and water-resistant seal for outdoor projects.
- STRAW-APPLIED. Save time on your projects with this simple to use spray foam — the straw applicator makes any project a breeze and helps you deliver the right amount of insulating foam even in hard to reach spaces.
- SPRAY ANYWHERE. Specifically designed to blend in and withstand moist conditions, use on retaining walls, water features, landscaping and more. Bonds without mortar and can be applied to damp and dry surfaces. Lasts for years in wet conditions.
- NATURAL LANDSCAPING. Designed to blend with stones and shadows, this black-colored, waterproof expanding foam helps direct water over, not under, rocks. Create a water-shedding bond safe for ornamental fish and plants.
- SAME–DAY RESULTS. Get your projects done right the first time with expanding foam from GREAT STUFF. Cures in 8 hours. Mist with water to speed cure. Trim, sand, stain and paint for a truly GREAT finish to your DIY projects.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001AQ0FVC |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #59,216 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #270 in Window Hardware |
| Brand | Great Stuff |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (4,660) |
| Date First Available | January 1, 2007 |
| Global Trade Identification Number | 00074985008580 |
| Is Discontinued By Manufacturer | No |
| Item Form | Foam |
| Item Package Quantity | 1 |
| Item Weight | 1 pounds |
| Item dimensions L x W x H | 2.63 x 2.63 x 8 inches |
| Item model number | 283064 |
| Manufacturer | Great Stuff |
| Material | Polyurethane |
| Number of Items | 1 |
| Part Number | 283064 |
| Pattern | Solid |
| Product Dimensions | 2.63 x 2.63 x 8 inches |
| Size | Each |
| Style | Pond & Stone |
| Surface Recommendation | Wall |
| UPC | 074985008580 |
| Unit Count | 12.0 Fluid Ounces |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Great Stuff
- **Item Weight:** 1 Pounds
- **Item dimensions L x W x H:** 2.63 x 2.63 x 8 inches
- **Material:** Polyurethane
- **Style:** Pond & Stone

## Images

![GREAT STUFF Pond & Stone Gap Filler | Insulating Foam Sealant, 12 oz. Can – Black - Image 1](https://m.media-amazon.com/images/I/61SJ+rwOEDL.jpg)
![GREAT STUFF Pond & Stone Gap Filler | Insulating Foam Sealant, 12 oz. Can – Black - Image 2](https://m.media-amazon.com/images/I/61LQzfqQQoL.jpg)
![GREAT STUFF Pond & Stone Gap Filler | Insulating Foam Sealant, 12 oz. Can – Black - Image 3](https://m.media-amazon.com/images/I/61VnwEYjTvL.jpg)
![GREAT STUFF Pond & Stone Gap Filler | Insulating Foam Sealant, 12 oz. Can – Black - Image 4](https://m.media-amazon.com/images/I/71+igKhY08L.jpg)
![GREAT STUFF Pond & Stone Gap Filler | Insulating Foam Sealant, 12 oz. Can – Black - Image 5](https://m.media-amazon.com/images/I/81GLjnrT+EL.jpg)

## Available Options

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

## Questions & Answers

**Q: how does it hold up outside in cold (new england) weather?**
A: I used it as glue to hold styrofoam to concrete under water to prevent puncturing a pond liner. It has been 3 years and it is still working. The pond freezes every up state NY winter.

**Q: Is this essentially the same product as the yellow expanding foam, just a different color?**
A: Chuksim, i don't know the yellow expanding foam is, but if you are looking for pond seal, then this product will good to bond plastic and rock, rubber together.

**Q: can this waterfall foam freeze if it left out in the cold to long**
A: This product has held up well in our waterfall and pond rocks during Ohio winters.

**Q: Can this product stand up to hot sunlight? I need something to stop leaks on my solar pool heating system, the panels are made of black rubber**
A: I bought this product, versus the normal, yellowish variety, to withstand ultra-violet deterioration.  So far, it has performed as I had hoped for.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable and Effective Insulation Foam
*by D***D on July 14, 2024*

The Great Stuff Pro Gaps & Cracks Insulating Foam Sealant has been a reliable product for my home improvement projects. This 24 oz can provides a generous amount of foam, which is great for sealing gaps and cracks around the house. The orange color makes it easy to see where the foam has been applied, ensuring complete coverage. One of the things I like most about this product is its ability to expand and fill even the smallest gaps, providing excellent insulation. It adheres well to various surfaces, including wood, metal, and masonry, and creates a solid seal that lasts. The foam dries quickly, allowing me to move on to the next step of my project without much delay. A minor downside is that the foam can be a bit messy if not applied carefully, but using the right applicator gun helps manage this. For anyone tackling insulation tasks, this foam sealant is an excellent choice. Its expansive properties, strong adhesion, and ease of use make it a valuable tool for sealing and insulating efficiently.

### ⭐⭐⭐⭐⭐ This stuff is great ;)
*by L***N on July 24, 2024*

Pros Absolutely adore great stuff. I’ve never used it in construction or plumbing settings, but it works great in aquariums/terrariums! I made the base of a terrarium background with it (WIP) and it held on well!! You can cut it off with a blade very easily, as well as just pull and scrape with your fingers. Very good at being waterproof though!! Cons If you don’t use the whole can in one sitting, it’s really hard to get the rest out (in my experience). I had to get a whole new nozzle just to use a can that was half empty, and even then it struggled. The insides were all dry foamed up! But if you use it all, great product. (And maybe I’m just dumb and didn’t do the reuse part right lol)

### ⭐⭐⭐⭐ Satisfied
*by M***E on February 22, 2018*

I was quite excited to stumble upon great stuff in black. I have not seen it available locally and it offered an immediate solution to a small out building/garden shed on our property. I applied it to the gap between the metal roof and cedar siding. You could see where foam had been used years before but the wasps had begun to easily enter last summer. I waited for a milder day this winter and had kept the foam inside the house for optimal results. The product worked, but I am not sure it is as sticky as standard foam. Several “worms” dropped to the deck below - which wasn’t an issue for me because it is to be replaced. If you are over something newer, I would probably use a drop cloth or something. It also didn’t expand as much as traditional gaps/cracks foam but that wasn’t a big problem either. The color is more of a shiny charcoal- in my application the over hand hides it but I can see situations where it may have to be touched up with a darker, flatter pain to make it “disappear.” Will definitely buy again, hopefully the commercial bottles will be available soon for use with a foam gun.

## Frequently Bought Together

- Great Stuff 283064 12OZ GS Pond&Stone Foam Sealant, Each, Black
- Zilla Coconut Husk Brick, Organic Bedding for Reptiles, Made with 100% Coconut Fiber, Ideal for Tropical Habitats and Egg Incubation
- Riare 5.3OZ Premium Sphagnum Moss for Reptiles- 6QT Natural Reptile Moss Dried, Forest Live Moss for Terrarium, Frogs Snake Peat Moss Bedding for Leopard Gecko Turtle Anoles Salamanders Orchids Plants

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-04*