---
product_id: 468433268
title: "Fiberglass Supply Depot 6 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit)"
brand: "fiberglass supply depot"
price: "₪576"
currency: ILS
in_stock: true
reviews_count: 13
category: "Fiberglass Supply Depot"
url: https://www.desertcart.co.il/products/468433268-fiberglass-supply-depot-6-lb-density-expanding-pour-foam-2
store_origin: IL
region: Israel
---

# 1.5 cu ft expansion volume per kit 5 min full cure time for fast results 6 lb density for durable strength Fiberglass Supply Depot 6 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit)

**Brand:** fiberglass supply depot
**Price:** ₪576
**Availability:** ✅ In Stock

## Summary

> 🚀 Expand Your Craft with Pro-Grade Foam Power!

## Quick Answers

- **What is this?** Fiberglass Supply Depot 6 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit) by fiberglass supply depot
- **How much does it cost?** ₪576 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/468433268-fiberglass-supply-depot-6-lb-density-expanding-pour-foam-2)

## Best For

- fiberglass supply depot enthusiasts

## Why This Product

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

## Key Features

- • **Rapid Expansion Power:** Expands quickly within 5 minutes to fill voids and create solid structure—perfect for time-sensitive projects.
- • **High-Density Durability:** 6 lb density ensures a tough, resilient foam that withstands wear and can be laminated with polyester, epoxy, or vinyl ester resins.
- • **Versatile Multi-Use Foam:** Ideal for boats, docks, soundproofing, insulation, carving, and sculpting—one kit, endless professional applications.
- • **Professional Grade Finish:** Creates a hard, skin-forming surface that bonds aggressively—engineered for lasting performance and structural integrity.
- • **Precision Mixing & Application:** Equal parts Part A and B with a 45-second working window demands expert handling for flawless results every time.

## Overview

Fiberglass Supply Depot’s 6 lb density 2-part polyurethane expanding pour foam delivers 1.5 cubic feet of closed-cell foam in a fast-curing 5-minute formula. Designed for professional-grade flotation, soundproofing, insulation, and sculpting, this kit offers rapid expansion and durable strength, compatible with polyester, epoxy, and vinyl ester resins for versatile industrial and creative applications.

## Description

Fiberglass Supply Depot 6 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit): desertcart.com: Industrial & Scientific

Review: Works great - Great products exactly what I ordered and needed
Review: Very easy to use, good level of expansion and a decent material consistency when cured - I used this product to pour through a small hole into an area that an animal was attempting to dig under my deck. It expands pretty rapidly and you need to get it poured as fast as you can after mixing it. You have maybe a 60 second working time before it takes off. It expands very rapidly and voluminously. It filled the area with decently hard cured material. Just don't put it someplace fragile and confined, it will very happily push out thin wood on its way to full expansion. The end material seems acceptably durable. It builds a thin skin on itself and it's not easy to rip apart or dislodge. The resultant material also sticks aggressively to anything, so make sure you are ok with that. Also, don't get the pre-cured material on your hands; it sticks extremely well to human skin and it will be a pain to get off. Overall a great product for filling spaces!

## Features

- Flotation Foam is a polyurethane 2-part foam that, when mixed in equal parts and poured in place this foam will soundproof, insulate, or provide extra buoyancy.
- 6LB. Density polyurethane flotation Foam 1 Gallon Kit; Consists of 1/2 gallon of Part A and 1/2 gallon of Part B and produces 1.5 cubic feet.
- Once fully cured this foam can be laminated over with any type of polyester, epoxy or vinyl ester resin without melting.
- The 6LB density also works well in floating decoy or taxidermy applications as well as many other sculpting, casting, carving and other filling applications
- All expansion rates and times given are temperature critical. Temperatures below 75° F will lower the expansion rate therefore requiring more foam. Ideal working temperature is 75° to 80° F or above. Accurate measuring of these products is extremely critical. Working time before foaming: approx. 45 seconds Time before full expansion: approx. 5 minutes

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BBH4XQ9P |
| Best Sellers Rank | #27,232 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #47 in Urethane Adhesives |
| Brand | Fiberglass Supply Depot |
| Color | Clear |
| Date First Available | August 22, 2022 |
| Full Cure Time | 5 Minutes |
| Global Trade Identification Number | 00819794023221 |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 128 Fluid Ounces |
| Item Weight | 6 pounds |
| Item model number | FBACPOLY6LBGK |
| Manufacturer | Fiberglass Supply Depot Inc. |
| Material | Foam,Resin |
| Number of Pieces | 2 |
| Package Dimensions | 10.39 x 9.41 x 6.69 inches |
| Package Information | Bottle |
| Unit Count | 128 Fluid Ounces |
| Viscosity | Low |
| Viscosity Level | Low |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Fiberglass Supply Depot
- **Color:** Clear
- **Item Form:** Liquid
- **Item Package Quantity:** 1
- **Material:** Foam,Resin

## Images

![Fiberglass Supply Depot 6 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit) - Image 1](https://m.media-amazon.com/images/I/41FGNpJT8UL.jpg)
![Fiberglass Supply Depot 6 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit) - Image 2](https://m.media-amazon.com/images/I/41U9vdyAoFL.jpg)
![Fiberglass Supply Depot 6 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit) - Image 3](https://m.media-amazon.com/images/I/41im3qL3mFL.jpg)
![Fiberglass Supply Depot 6 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit) - Image 4](https://m.media-amazon.com/images/I/514PDLIwJWL.jpg)
![Fiberglass Supply Depot 6 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit) - Image 5](https://m.media-amazon.com/images/I/51Hwtv3BUKL.jpg)

## Questions & Answers

**Q: could this me used for settng fence posts?**
A: This foam is very strong & it will bond doesn't soak in ground I would not be afraid to use as a fence post filler.

**Q: Will this skin inside a mold? Self skinning without direct air or moisture exposure for casting.**
A: No this will not set up without air

**Q: What is the shelf life of this product?**
A: Approximately 6 months from the manufacture date.

**Q: Will this work for archery targets?**
A: Yes this foam will expand to fill in shot out areas on a foam target you can sand flush once it hardens let it set up for about an hour

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by N***S on November 16, 2025*

Great products exactly what I ordered and needed

### ⭐⭐⭐⭐⭐ Very easy to use, good level of expansion and a decent material consistency when cured
*by B***S on August 16, 2024*

I used this product to pour through a small hole into an area that an animal was attempting to dig under my deck. It expands pretty rapidly and you need to get it poured as fast as you can after mixing it. You have maybe a 60 second working time before it takes off. It expands very rapidly and voluminously. It filled the area with decently hard cured material. Just don't put it someplace fragile and confined, it will very happily push out thin wood on its way to full expansion. The end material seems acceptably durable. It builds a thin skin on itself and it's not easy to rip apart or dislodge. The resultant material also sticks aggressively to anything, so make sure you are ok with that. Also, don't get the pre-cured material on your hands; it sticks extremely well to human skin and it will be a pain to get off. Overall a great product for filling spaces!

### ⭐⭐⭐⭐⭐ Worked!
*by A***Y on October 4, 2025*

Worked great. Easy to mix, poured well, and got into all the holes. I had an hole in the base layer under some concrete that also has pavers on top. The concrete has shifted and no matter how much sand I used to backfill the cracks- the pavers keep shifting as well. I used this, and after a heavy rainy season, the pavers and concrete still have not moved.

## Frequently Bought Together

- 6 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit)
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- 4 Lb. Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing, Filling Voids, and Insulation (1 Gallon Kit)

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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-01-29*