---
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: "€ 456.04"
currency: EUR
in_stock: false
reviews_count: 5
category: "Fiberglass Supply Depot"
url: https://www.desertcart.de/products/692715742-6-lb-density-expanding-pour-foam-2-part-polyurethane-closed
store_origin: DE
region: Germany
---

# 1.5 cu ft expansion volume per kit 5 min full cure time for fast results 6 lb density for durable strength 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:** € 456.04
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Float, Fill, and Fortify with Foam That Works as 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?** € 456.04 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/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

- • **Resin-Compatible Finish:** Seamlessly laminate with polyester, epoxy, or vinyl ester resins without melting or damage.
- • **Rapid 5-Minute Cure Time:** Get your projects moving fast with a quick, reliable set that minimizes downtime.
- • **Expands to 1.5 Cubic Feet:** Generous volume coverage ensures efficient filling, insulation, and soundproofing in one kit.
- • **Versatile Multi-Use Formula:** Perfect for boats, docks, soundproofing, carving, and void filling—adaptable to your creative and practical needs.
- • **Precision-Engineered 6 lb Density:** Robust polyurethane foam designed for maximum buoyancy and structural integrity.

## Overview

This 6 lb density, two-part polyurethane expanding foam kit delivers 1.5 cubic feet of closed-cell foam that cures in just 5 minutes. Engineered for superior buoyancy, soundproofing, and insulation, it’s ideal for professional-grade boat flotation, dock applications, and precision carving. Compatible with multiple resin types, it offers versatile, fast, and durable solutions for demanding projects.

## Description

6lb poly foam

Review: Great
Review: Works great

## 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 |
| Brand | Fiberglass Supply Depot |
| Brand Name | Fiberglass Supply Depot |
| Colour | Clear |
| Compatible Material | Vinyl |
| Container Type | Can |
| Country of Publication | USA |
| Customer Reviews | 4.4 out of 5 stars 157 Reviews |
| Full Cure Time | 5 Minutes |
| Global Trade Identification Number | 00819794023221 |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 6 Pounds |
| Manufacturer | Fiberglass Supply Depot Inc. |
| Material | Resin |
| Material Type | Resin |
| Model | FBACPOLY6LBGK |
| Other Special Features of the Product | Soundproofing, Insulation, Buoyancy |
| Special Feature | Soundproofing, Insulation, Buoyancy |
| Specific Uses For Product | Boats, Dock Flotation, Soundproofing, Filling Voids, Insulation |
| Viscosity | Low |
| Volume | 128 Fluid Ounces |
| Water Resistance Level | Not Water Resistant |

## Product Details

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

## 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/71W6+Fk0w6L.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/71fqAimxMaL.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/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 5](https://m.media-amazon.com/images/I/81onsl4rjEL.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 26 November 2025*



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



### ⭐⭐⭐⭐⭐ Great product
*by F***Y on 29 October 2025*



## 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)
- Custom Shop Paint Mixing Cups Plastic Measuring Cup Epoxy Resin, Disposable or Reusable, 32-Ounce Quart - Pack of 12 - Graduated, Mixing Ratios, Automotive Painting Acrylic Art Crafts Kitchen
- 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)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

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

---

*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-02-01*