---
product_id: 244660811
title: "Fiberglass Supply Depot 2 Lb Density Expanding Pour Foam, 2 Part Polyurethane..."
brand: "fiberglass supply depot"
price: "€ 474.63"
currency: EUR
in_stock: null
reviews_count: 8
category: "Fiberglass Supply Depot"
url: https://www.desertcart.sk/products/244660811-fiberglass-supply-depot-2-lb-density-expanding-pour-foam-2
store_origin: SK
region: Slovakia
---

# 10 cubic feet expansion per kit 5 min full cure time 2 lb density for superior buoyancy Fiberglass Supply Depot 2 Lb Density Expanding Pour Foam, 2 Part Polyurethane...

**Brand:** fiberglass supply depot
**Price:** € 474.63
**Availability:** ❌ Out of Stock

## Summary

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

## Quick Answers

- **What is this?** Fiberglass Supply Depot 2 Lb Density Expanding Pour Foam, 2 Part Polyurethane... by fiberglass supply depot
- **How much does it cost?** € 474.63 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/244660811-fiberglass-supply-depot-2-lb-density-expanding-pour-foam-2)

## 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 full foam expansion and strength in just 5 minutes—work fast, finish faster.
- • **Resin-Compatible Finish:** Fully cured foam laminates seamlessly with polyester, epoxy, or vinyl ester resins.
- • **Lightweight 2 lb Density:** Optimized buoyancy for boats and docks without adding bulk or weight.
- • **Versatile Multi-Use Foam:** Soundproof, insulate, fill voids, or add flotation with one high-performance product.
- • **Massive 10 Cubic Feet Coverage:** One 2-gallon kit fills large voids efficiently—less hassle, more results.

## Overview

Fiberglass Supply Depot’s 2 lb density expanding pour foam is a 2-part polyurethane closed-cell liquid foam kit designed for rapid curing and high expansion. Ideal for boat and dock flotation, soundproofing, insulation, and void filling, this 2-gallon kit produces 10 cubic feet of water-resistant foam that can be laminated with common resins. Perfect for professionals needing lightweight, durable, and versatile foam solutions with a quick 5-minute cure time.

## Description

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

Review: Good product - Does well. Be prepared to work quickly
Review: Works really well! - Worked great. Working time exactly as it stated, and it expanded nicely.

## 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.
- This expandable foam is recommended for void filling in nonstructural applications. It can be poured underneath decks and inside cavities where a lightweight flotation foam is needed to provide buoyancy.
- 2# Density polyurethane flotation Foam 2 Gallon Kit; Consists of 1 gallon of Part A and 1 gallon of Part B and produces 10 cubic feet.
- Once fully cured this foam can be laminated over with any type of polyester, epoxy or vinyl ester resin without melting.
- 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 | B08LW1ZNK8 |
| Best Sellers Rank | #107,539 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #126 in Urethane Adhesives |
| Brand | Fiberglass Supply Depot |
| Color | Clear |
| Date First Available | October 26, 2020 |
| Full Cure Time | 5 Minutes |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 2 Gallons |
| Item Weight | 20 pounds |
| Item model number | poly2lb2gk |
| Manufacturer | Fiberglass Supply Depot Inc. |
| Material | Foam, Resin |
| Number of Pieces | 2 |
| Package Dimensions | 12 x 12 x 6.25 inches |
| Package Information | Bottle |
| UPC | 819794022675 |
| Unit Count | 256.0 Fluid Ounces |
| Viscosity | Medium to High Viscosity |
| Viscosity Level | Medium to High |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Fiberglass Supply Depot
- **Color:** Clear
- **Item Form:** Liquid
- **Item Package Quantity:** 1
- **Material:** Foam, Resin

## Images

![Fiberglass Supply Depot 2 Lb Density Expanding Pour Foam, 2 Part Polyurethane... - Image 1](https://m.media-amazon.com/images/I/81s2dvoTACL.jpg)
![Fiberglass Supply Depot 2 Lb Density Expanding Pour Foam, 2 Part Polyurethane... - Image 2](https://m.media-amazon.com/images/I/8189VtbwU2L.jpg)
![Fiberglass Supply Depot 2 Lb Density Expanding Pour Foam, 2 Part Polyurethane... - Image 3](https://m.media-amazon.com/images/I/71Gbm9XW+IL.jpg)
![Fiberglass Supply Depot 2 Lb Density Expanding Pour Foam, 2 Part Polyurethane... - Image 4](https://m.media-amazon.com/images/I/71Jn4WV0S0L.jpg)
![Fiberglass Supply Depot 2 Lb Density Expanding Pour Foam, 2 Part Polyurethane... - Image 5](https://m.media-amazon.com/images/I/81mbAHsaZfL.jpg)

## Questions & Answers

**Q: What is the R value for this foam?**
A: It's not made for insulation
It's for bouncy to keep a boat afloat.
You can use it for insulation but it's pricey.

**Q: Is this product paintable with spray paint or acrylics?**
A: This can be painted with pretty much anything.

**Q: Is this product affected by humidity when poured?**
A: No humidity doesn't effect the cure.

**Q: What does the foam clean up with?  Acetone?  MEK? Something else?  Thx**
A: Once cured nothing will clean it up. If it is still liquid you can try acetone.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product
*by K***R on August 27, 2025*

Does well. Be prepared to work quickly

### ⭐⭐⭐⭐⭐ Works really well!
*by S***D on January 8, 2024*

Worked great. Working time exactly as it stated, and it expanded nicely.

### ⭐⭐⭐⭐ Works well
*by C***1 on January 2, 2026*

Worked well redid a 21 ft sylvan with it

## Frequently Bought Together

- 2 Lb Density Expanding Pour Foam, 2 Part Polyurethane Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing, Filling Voids, and Insulation (2 Gallon Kit)
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**Shop now:** [https://www.desertcart.sk/products/244660811-fiberglass-supply-depot-2-lb-density-expanding-pour-foam-2](https://www.desertcart.sk/products/244660811-fiberglass-supply-depot-2-lb-density-expanding-pour-foam-2)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-19*