---
product_id: 60685856
title: "Liquid Urethane Pour Foam- 4 Lb Density Expanding Insulation Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing & Insulation- 2 Part Rigid Pour Foam- 4 Gallon Kit"
brand: "true composites"
price: "$1273"
currency: NZD
in_stock: true
url: https://www.desertcart.nz/products/60685856-liquid-urethane-pour-foam-4-lb-density-expanding-insulation-closed
store_origin: NZ
region: New Zealand
---

# Superior soundproofing & insulation Fast 10-min cure time 4 lb density closed-cell strength Liquid Urethane Pour Foam- 4 Lb Density Expanding Insulation Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing & Insulation- 2 Part Rigid Pour Foam- 4 Gallon Kit

**Brand:** true composites
**Price:** $1273
**Availability:** ✅ In Stock

## Summary

> 🛠️ Elevate your build with foam that works as hard as you do!

## Quick Answers

- **What is this?** Liquid Urethane Pour Foam- 4 Lb Density Expanding Insulation Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing & Insulation- 2 Part Rigid Pour Foam- 4 Gallon Kit by true composites
- **How much does it cost?** $1273 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/60685856-liquid-urethane-pour-foam-4-lb-density-expanding-insulation-closed)

## Best For

- true composites enthusiasts

## Why This Product

- Trusted true composites brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Set & Ready:** Foam sets in 10 minutes and cures fully within hours—get your project moving faster.
- • **Unmatched Durability:** 95%-98% closed-cell foam resists water, oil, gasoline & solvents for years of reliable flotation and insulation.
- • **Effortless Precision Mixing:** 1:1 ratio, hand or machine mix in 20 seconds for a flawless, uniform foam every time.
- • **Layer & Coat with Confidence:** Pour multiple layers with strong bonding; cured foam accepts polyester, epoxy, or vinyl ester coatings without damage.
- • **Versatile Application Powerhouse:** Ideal for boat flotation, dock insulation, soundproofing, sculpting, and structural support—one foam, endless possibilities.

## Overview

This 4-gallon, 2-part liquid urethane pour foam delivers a high-density (4 lb) closed-cell structure with 95%-98% cell integrity, ensuring exceptional water resistance and durability. Fast curing within 10 minutes and full readiness in hours makes it perfect for boat flotation, dock insulation, soundproofing, and versatile fabrication projects. Its easy 1:1 mix ratio and compatibility with multiple coatings make it a must-have for professionals demanding strength, speed, and multifunctionality.

## Description

Liquid Urethane Pour Foam- 4 Lb Density Expanding Insulation Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing & Insulation- 2 Part Rigid Pour Foam- 4 Gallon Kit

## Features

- ✅ Remarkable Strength– This two liquid pour foam component system that produces foam when mixing part A and B together does not contain any CFC blowing agent, and has a closed-cell structure that allows it to resist water absorption for many years. Once cured, the urethane flotation foam stays intact against solvents, oil, gasoline, fresh or salt water, or solvents and benefits 95%-98% closed cell structure with a 4-lb density!
- ✅ Simple to Mix and Use – Pour Foam series systems ease mixing by hand or machine and produce a uniform product with outstanding cell structure. Just mix at a 1:1 ratio to ensure equal, even distribution and the strongest possible foam. This fast acting formula gives approximately twenty seconds for mixing and pouring, as foam will be set in place within 10 minutes. Cured and ready for use in just hours.
- ✅ Perfect Expanding Foam to add Insulation – The high density foam protect the pipes on a boat in colder temperatures and block sounds, perfect to fill dock floats or boat parts for soundproofing and insulating!
- ✅ Multifunctional - Excellent for casting, carving, sculpture, plug making, sign making, flotation for boats and buoys, floating decoys, part fabrication, replicating wooden parts, rigidifying, structural support and more.
- ✅ 2-Part Liquid Pour Foam Component System - This product can be poured in multiple layers with exceptional bonding between layers. Once fully cured, foam can be coated with polyester, epoxy, or vinyl ester resins, without melting. Shaping is simple once cured.

## Product Details

- **Material:** Urethane Foam
- **Brand:** TRUE COMPOSITES
- **Shape:** Irregular Shape
- **Item Form:** Liquid
- **Grade Rating:** Industrial

## Images

![Liquid Urethane Pour Foam- 4 Lb Density Expanding Insulation Closed Cell Liquid Foam for Boat and Dock Flotation, Soundproofing & Insulation- 2 Part Rigid Pour Foam- 4 Gallon Kit - Image 1](https://m.media-amazon.com/images/I/81gkTOxyk-L.jpg)

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**Shop now:** [https://www.desertcart.nz/products/60685856-liquid-urethane-pour-foam-4-lb-density-expanding-insulation-closed](https://www.desertcart.nz/products/60685856-liquid-urethane-pour-foam-4-lb-density-expanding-insulation-closed)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-15*