---
product_id: 489776488
title: "6LB Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (Quart Kit)"
brand: "fiberglass supply depot"
price: "€ 110.04"
currency: EUR
in_stock: true
category: "Fiberglass Supply Depot"
url: https://www.desertcart.be/products/489776488-6lb-density-expanding-pour-foam-2-part-polyurethane-closed-cell
store_origin: BE
region: Belgium
---

# 2-part polyurethane for precision mixing 5 min full cure time 6LB density for superior strength 6LB Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (Quart Kit)

**Brand:** fiberglass supply depot
**Price:** € 110.04
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your projects with foam that floats, fills, and fortifies!

## Quick Answers

- **What is this?** 6LB Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (Quart Kit) by fiberglass supply depot
- **How much does it cost?** € 110.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/489776488-6lb-density-expanding-pour-foam-2-part-polyurethane-closed-cell)

## 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 fast, reliable results with a quick full cure time that keeps projects moving.
- • **Resin-Compatible Finish:** Seamlessly laminate with polyester, epoxy, or vinyl ester without melting or damage.
- • **Precision 2-Part Formula:** Mix equal parts for flawless expansion and performance every time.
- • **Versatile High-Density Foam:** 6LB density ensures exceptional buoyancy, soundproofing, and insulation.
- • **Temperature-Optimized Expansion:** Ideal working range of 75°-80°F guarantees consistent foam expansion and volume.

## Overview

Fiberglass Supply Depot’s 6LB Density Expanding Pour Foam is a premium 2-part polyurethane closed-cell liquid foam designed for superior buoyancy, soundproofing, insulation, and versatile crafting applications. This 1-quart kit cures fully in 5 minutes, expands precisely when mixed equally, and is compatible with various resin laminates, making it the go-to solution for professionals seeking reliable, high-performance foam for boats, docks, woodworking, and more.

## Description

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

## 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 Quart Kit; Consists of 1 Pint of Part A and 1 Pint of Part B and produces 0.375 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 | B0BLKLDH79 |
| Best Sellers Rank | #96,584 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #130 in Urethane Adhesives |
| Brand Name | Fiberglass Supply Depot |
| Color | Clear/Transparent |
| Compatible Material | Vinyl |
| Container Type | Can |
| Customer Reviews | 4.4 4.4 out of 5 stars (59) |
| Full Cure Time | 5 Minutes |
| Global Trade Identification Number | 00819794023276 |
| Included Components | 6lb poly foam |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Manufacturer | Fiberglass Supply Depot Inc. |
| Material Type | Foam,Resin |
| Model | 00819794023276 |
| Other Special Features of the Product | Soundproofing, insulation, buoyancy, resin lamination compatibility |
| Part Number | Poly6lbgk |
| Specific Uses For Product | Flooring, Repair, Casting, Wall Repair, Furniture, Woodworking, Wood |
| Unit Count | 32.0 Fluid Ounces |
| Viscosity Level | Low |
| Volume | 1 Quarts |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Fiberglass Supply Depot
- **Item Form:** Liquid
- **Material:** Foam,Resin
- **Special Feature:** Soundproofing, insulation, buoyancy, resin lamination compatibility
- **Specific Uses For Product:** Flooring, Repair, Casting, Wall Repair, Furniture, Woodworking, Wood

## Images

![6LB Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (Quart Kit) - Image 1](https://m.media-amazon.com/images/I/61mk4VUBDDL.jpg)

## Questions & Answers

**Q: Can you press dents into this with your fingers once it’s fully cured?**
A: If you pour too much, too fast, you can create less dense regions that you can press your finger into. If you are patient with your pour it's pretty dang rigid - with that being said, if you put a tremendous weight through your thumb, you can still dent it a bit, but it's not easy to deform (I'm a 180 lbs male of average strength).

## Frequently Bought Together

- Fiberglass Supply Depot 6LB Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boats, Dock Flotation, Carving, Soundproofing, Filling Voids, and Insulation (Quart Kit)
- 2 Lb Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing, Filling Voids, and Insulation (Quart Kit)

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**Shop now:** [https://www.desertcart.be/products/489776488-6lb-density-expanding-pour-foam-2-part-polyurethane-closed-cell](https://www.desertcart.be/products/489776488-6lb-density-expanding-pour-foam-2-part-polyurethane-closed-cell)

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-07-15*