---
product_id: 729297040
title: "6,000 lb Density Extended Pouring Foam 2 Part Polyurethane Closed Cell Liquid Foam for Boat Dock Float Carving Soundproofing Filling Void Insulation (1 Gallon Kit)"
brand: "fiberglass supply depot"
price: "€ 382.93"
currency: EUR
in_stock: true
reviews_count: 5
category: "Fiberglass Supply Depot"
url: https://www.desertcart.com.cy/products/729297040-6-000-lb-density-extended-pouring-foam-2-part-polyurethane
store_origin: CY
region: Cyprus
---

# 45 sec working time, fast curing 6000 lb density for ultimate flotation 1.5 cu ft volume from 1 gallon kit 6,000 lb Density Extended Pouring Foam 2 Part Polyurethane Closed Cell Liquid Foam for Boat Dock Float Carving Soundproofing Filling Void Insulation (1 Gallon Kit)

**Brand:** fiberglass supply depot
**Price:** € 382.93
**Availability:** ✅ In Stock

## Summary

> ⚡ Float, fill, and fortify with foam that means business!

## Quick Answers

- **What is this?** 6,000 lb Density Extended Pouring Foam 2 Part Polyurethane Closed Cell Liquid Foam for Boat Dock Float Carving Soundproofing Filling Void Insulation (1 Gallon Kit) by fiberglass supply depot
- **How much does it cost?** € 382.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/729297040-6-000-lb-density-extended-pouring-foam-2-part-polyurethane)

## 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

- • **Multi-Use Innovation:** Perfect for boat docks, soundproofing, taxidermy molds, sculpture, and void filling—engineered for pros who demand more.
- • **Rapid Expansion & Fast Cure:** Expands 4x volume in just 5 minutes, letting you seal, fill, or insulate with speed and precision.
- • **Precision Temperature Control:** Optimal performance between 50°F-75°F ensures consistent expansion and curing every time.
- • **Unmatched High-Density Strength:** 6000 lb density foam delivers rock-solid buoyancy and durability for demanding marine and structural uses.
- • **Versatile Laminating Compatibility:** Fully cured foam bonds seamlessly with polyester, epoxy, or vinyl ester resins for custom composite projects.

## Overview

This 1-gallon 2-part polyurethane foam kit from Fiberglass Supply Depot offers a dense 6000 lb closed-cell formula that expands rapidly to 1.5 cubic feet. Designed for flotation, soundproofing, insulation, and structural filling, it cures quickly within 5 minutes and bonds with common resins. Ideal for professionals needing reliable, high-performance foam for marine, construction, and creative applications.

## Description

6 lb polyfoam

Review: Great - Works great for my taxidermy molds Expands roughly 4 times liquid amount and is rock solid ( 6lb )
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 2-part polyurethane foam that can be mixed and poured into the same part for soundproofing, insulating, and extra buoyancy
- 6,000 lbs. High density polyurethane floating foam 1 gallon kit; 1/2 gallon parts A and 1/2 gallon parts B produce 1.5 cubic feet
- Once fully cured, this foam can be laminated without melting with any type of polyester, epoxy, or vinyl ester resin
- The 6 lb density can also be used for floating decoy and taxidery, as well as many other engraving, casting, sculpture, and other filling applications
- Every inflation rate and time displayed is critical temperature. Temperatures less than 44°F will reduce the expansion rate so more form is required. The ideal operating temperature is 75° to 50° F. Accurate measurements of these products are very important. Working time before whisking: about 45 seconds Fully extended time: about 5 minutes

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BBH4XQ9P |
| Brand | Fiberglass Supply Depot |
| Brand Name | Fiberglass Supply Depot |
| Customer Reviews | 4.4 out of 5 stars 187 Your Review |
| Global Trade Identification Number | 00819794023221 |
| Item Weight | 6 Pounds |
| Manufacturer | Fiberglass Supply Depot Inc. |
| Manufacturer Part Number | FBACPOLY6LBGK |
| Material | Foam, Resin |
| Material Type | Foam, Resin |
| Model Number | FBACPOLY6LBGK |
| Number of Items | 1 |
| Unit Count | 128 Count |

## Product Details

- **Brand:** Fiberglass Supply Depot Inc.
- **Specific Uses For Product:** Boat, Dock Floating, Sound Insulation, Void Filling, Insulation
- **Material:** Foam, Resin
- **Item Form:** Liquid
- **Special Feature:** Sound insulation, insulation, buoyancy

## Images

![6,000 lb Density Extended Pouring Foam 2 Part Polyurethane Closed Cell Liquid Foam for Boat Dock Float Carving Soundproofing Filling Void Insulation (1 Gallon Kit) - Image 1](https://m.media-amazon.com/images/I/61Gi2RbcrRL.jpg)
![6,000 lb Density Extended Pouring Foam 2 Part Polyurethane Closed Cell Liquid Foam for Boat Dock Float Carving Soundproofing Filling Void Insulation (1 Gallon Kit) - Image 2](https://m.media-amazon.com/images/I/81onsl4rjEL.jpg)
![6,000 lb Density Extended Pouring Foam 2 Part Polyurethane Closed Cell Liquid Foam for Boat Dock Float Carving Soundproofing Filling Void Insulation (1 Gallon Kit) - Image 3](https://m.media-amazon.com/images/I/71vQaydgXGL.jpg)
![6,000 lb Density Extended Pouring Foam 2 Part Polyurethane Closed Cell Liquid Foam for Boat Dock Float Carving Soundproofing Filling Void Insulation (1 Gallon Kit) - Image 4](https://m.media-amazon.com/images/I/81s3RjkkMiL.jpg)
![6,000 lb Density Extended Pouring Foam 2 Part Polyurethane Closed Cell Liquid Foam for Boat Dock Float Carving Soundproofing Filling Void 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

### ⭐⭐⭐⭐⭐ Great
*by Z***N on November 26, 2025*

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

### ⭐⭐⭐⭐⭐ 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!

### ⭐⭐⭐⭐⭐ Performed exactly as advertised.
*by H***S on May 2, 2025*

Used this to insulate around a bathtub and it worked great. The foam expanded exactly as expected and provided a solid, supportive fill without over-expanding or creating pressure issues. Once cured, it formed a dense, durable barrier that helps with both insulation and soundproofing. Just be sure to follow the mixing directions carefully and prep your area—it sets fast. Highly recommend for home projects where a strong, stable fill is needed

## 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 Cyprus*
*Store origin: CY*
*Last updated: 2026-07-07*