---
product_id: 692715742
title: "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: "87343 som"
currency: KGS
in_stock: false
reviews_count: 5
category: "Fiberglass Supply Depot"
url: https://www.desertcart.kg/products/692715742-6-lb-density-expanding-pour-foam-2-part-polyurethane-closed
store_origin: KG
region: Kyrgyzstan
---

# 1.5 cu ft expansion volume for maximum fill 5 min full cure time for rapid project turnaround 6 lb density for rock-solid durability 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:** 87343 som
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Expand your projects with foam that works as fast and hard as you do!

## Quick Answers

- **What is this?** 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?** 87343 som with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/692715742-6-lb-density-expanding-pour-foam-2-part-polyurethane-closed)

## 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 5-Minute Cure:** Get from mix to solid in just 5 minutes—perfect for fast-paced projects and last-minute fixes.
- • **High-Density Strength:** 6 lb density foam delivers unmatched rigidity and durability for flotation, carving, and structural fills.
- • **Massive Expansion Power:** Expands up to 4x liquid volume, filling voids and cavities with ease—never leave gaps behind.
- • **Resin-Compatible Finish:** Fully cured foam laminates seamlessly with polyester, epoxy, or vinyl ester resins without melting or damage.
- • **Versatile Multi-Use Formula:** Ideal for boats, docks, soundproofing, insulation, taxidermy molds, and sculpting—one kit, endless possibilities.

## Overview

This 6 lb density, 2-part polyurethane expanding foam kit delivers 1.5 cubic feet of rock-solid, closed-cell foam in just 5 minutes. Engineered for professional-grade flotation, soundproofing, insulation, and sculpting, it expands rapidly to fill voids and bonds aggressively to surfaces. Compatible with major resin types, it’s the go-to solution for millennial pros seeking durable, versatile, and fast-curing foam for boats, docks, and creative projects.

## Description

6lb poly foam

Review: Works great for my taxidermy molds Expands roughly 4 times liquid amount and is rock solid ( 6lb )
Review: 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 |
| Are batteries included? | No |
| Brand | Fiberglass Supply Depot |
| Colour | Clear |
| Country of Origin | USA |
| Customer Reviews | 4.4 4.4 out of 5 stars (166) |
| Date First Available | 7 September 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 | 2 kg 720 g |
| Item model number | FBACPOLY6LBGK |
| Manufacturer | Fiberglass Supply Depot Inc. |
| Material | Resin |
| Model number | FBACPOLY6LBGK |
| Number of Memory Sticks | 1 |
| Number of Pieces | 2 |
| Package Dimensions | 26.4 x 23.9 x 17 cm; 2.72 kg |
| Package Information | Can |
| Special Feature | Soundproofing, Insulation, Buoyancy |
| Specific Uses For Product | Boats, Dock Flotation, Soundproofing, Filling Voids, Insulation |
| Viscosity | Low |
| Viscosity Level | Low |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Fiberglass Supply Depot
- **Item Form:** Liquid
- **Material:** Resin
- **Special Feature:** Soundproofing, Insulation, Buoyancy
- **Specific Uses For Product:** Boats, Dock Flotation, Soundproofing, Filling Voids, Insulation

## Images

![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/81Do0u1pU6L.jpg)
![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/81onsl4rjEL.jpg)
![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/71vQaydgXGL.jpg)
![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/81s3RjkkMiL.jpg)
![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/71fqAimxMaL.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

### ⭐⭐⭐⭐⭐ Review
*by Z***N on 26 November 2025*

Works great for my taxidermy molds Expands roughly 4 times liquid amount and is rock solid ( 6lb )

### ⭐⭐⭐⭐⭐ Review
*by B***S on 16 August 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!

### ⭐⭐⭐⭐⭐ Review
*by T***F on 7 January 2026*

Great for tub repairs.. Injecting under tub floors for support, to lift floors up a bit, prevent tub floor sagging. Also great for injecting into inner tub walls to use as a backer for the rest of your repair once it's hardened. Allows one to continue and complete the repair job in one fell swoop.

## 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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**Shop now:** [https://www.desertcart.kg/products/692715742-6-lb-density-expanding-pour-foam-2-part-polyurethane-closed](https://www.desertcart.kg/products/692715742-6-lb-density-expanding-pour-foam-2-part-polyurethane-closed)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-03-04*