---
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: "HK$2836"
currency: HKD
in_stock: false
reviews_count: 5
url: https://www.desertcart.hk/products/729297040-6-000-lb-density-extended-pouring-foam-2-part-polyurethane
store_origin: HK
region: Hong Kong
---

# 5 min full cure time for rapid project turnaround 6000 lb density for ultimate buoyancy 2-part polyurethane for precision mixing & strength 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:** HK$2836
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Float, Fill, and Finish Like a Pro — Foam That Works as Hard as You Do!

## 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?** HK$2836 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/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

- • **Fast & Efficient Curing:** Achieve full cure in just 5 minutes, minimizing downtime and accelerating your workflow with confidence.
- • **Unmatched Flotation Power:** 6000 lb density foam delivers superior buoyancy for docks and boats, ensuring your projects stay afloat and ahead.
- • **Versatile Multi-Use Formula:** Perfect for soundproofing, insulation, void filling, carving, and casting—one kit, endless professional applications.
- • **Seamless Lamination Compatibility:** Fully cured foam bonds flawlessly with polyester, epoxy, or vinyl ester resins without melting or warping.
- • **Precision Mixing for Optimal Results:** Balanced 1:1 parts A and B ensure consistent expansion and density, tailored for expert craftsmanship.

## Overview

This 1-gallon 2-part polyurethane foam kit from Fiberglass Supply Depot offers a high-density 6000 lb closed-cell formula designed for superior buoyancy, soundproofing, and insulation. With a rapid 5-minute cure time and compatibility with major resin types, it’s engineered for precision, versatility, and professional-grade results in boat docks, carving, casting, and void filling applications.

## Description

6 lb polyfoam

Review: Great
Review: Very easy to use, good level of expansion and a decent material consistency when cured

## 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 |
| Color | clear |
| Compatible Material | Vinyl |
| Container Type | Bottle |
| Customer Reviews | 4.4 out of 5 stars 164 Your Review |
| Full Cure Time | 5 Minutes |
| Global Trade Identification Number | 00819794023221 |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 2.72 kg |
| Manufacturer | Fiberglass Supply Depot Inc. |
| Material | Foam, Resin |
| Material Type | Foam, Resin |
| Model | FBACPOLY6LBGK |
| Other Special Features of the Product | Sound insulation, insulation, buoyancy |
| Special Feature | Sound insulation, insulation, buoyancy |
| Specific Uses For Product | Boat, Dock Floating, Sound Insulation, Void Filling, Insulation |
| Unit Count | 128 Count |
| Viscosity | Low |
| Volume | 128 Fluid Ounces |
| Water Resistance Level | Not Water Resistant |

## 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/81Do0u1pU6L.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*



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



### ⭐⭐⭐⭐⭐ Great as a backer for tub repairs
*by T***F on January 7, 2026*



## 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.hk/products/729297040-6-000-lb-density-extended-pouring-foam-2-part-polyurethane](https://www.desertcart.hk/products/729297040-6-000-lb-density-extended-pouring-foam-2-part-polyurethane)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-24*