---
product_id: 645562543
title: "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)"
brand: "fiberglass supply depot"
price: "1984 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/645562543-fiberglass-supply-depot-2-lb-density-expanding-pour-foam-2
store_origin: RO
region: Romania
---

# Closed-cell foam for soundproofing 5 min full expansion time 2 lb density for superior buoyancy 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)

**Brand:** fiberglass supply depot
**Price:** 1984 Lei
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your build with foam that floats, fills, and silences like a pro!

## Quick Answers

- **What is this?** 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) by fiberglass supply depot
- **How much does it cost?** 1984 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/645562543-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

- • **Speedy Setup:** Expands fully in just 5 minutes—get your project moving fast without downtime.
- • **Seal & Silence:** Exceptional soundproofing and insulation with closed-cell polyurethane technology.
- • **Mix & Match Mastery:** Compatible with polyester, epoxy, and vinyl ester resins—customize your finish without worry.
- • **Float Above the Rest:** 2 lb density closed-cell foam delivers unmatched buoyancy for boats and docks.
- • **Precision Performance:** Temperature-sensitive expansion ensures perfect fill every time when applied between 75°-80°F.

## Overview

This 2-part polyurethane closed-cell expanding foam kit offers 2 lb density buoyancy, soundproofing, and insulation in a 2-gallon set that produces 10 cubic feet of foam. Ideal for boat and dock flotation, void filling, and sound dampening, it cures quickly within 5 minutes and can be laminated with common resins without damage. Optimal application temperature is 75°-80°F for precise expansion and performance.

## 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)

## 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 |
|---------------|-------|
| Package Dimensions | 30.48 x 30.48 x 15.87 cm; 9.07 kg |
| Item model number | poly2lb2gk |
| Number of Puzzle Pieces | 2 |
| Batteries Required? | No |
| Batteries Included? | No |
| Material Type(s) | Foam,Resin |
| Radio Control Suitability | void filling, buoyancy, soundproofing, insulation |
| Color | Clear |
| ASIN | B08LW1ZNK8 |

## Product Details

- **Brand:** Fiberglass Supply Depot
- **Specific uses for product:** Boat flotation, Dock flotation, Soundproofing, Filling voids, Insulation
- **Material:** Foam,Resin
- **Item form:** Liquid
- **Special features:** Laminatable with various resins without melting

## Images

![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) - Image 1](https://m.media-amazon.com/images/I/81s2dvoTACL.jpg)
![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) - Image 2](https://m.media-amazon.com/images/I/8189VtbwU2L.jpg)
![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) - Image 3](https://m.media-amazon.com/images/I/71Gbm9XW+IL.jpg)
![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) - Image 4](https://m.media-amazon.com/images/I/71Jn4WV0S0L.jpg)
![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) - 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.

## 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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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-01*