---
product_id: 448590754
title: "FlexFoam-iT! III - Flexible Polyurethane Foam - Gallon Unit"
brand: "smooth-on"
price: "6494 kr"
currency: NOK
in_stock: true
category: "Smooth On"
url: https://www.desertcart.no/products/448590754-flexfoam-it-iii-flexible-polyurethane-foam-gallon-unit
store_origin: NO
region: Norway
---

# 2-hour full cure time 15x volume expansion 1:2 precise mix ratio FlexFoam-iT! III - Flexible Polyurethane Foam - Gallon Unit

**Brand:** smooth-on
**Price:** 6494 kr
**Availability:** ✅ In Stock

## Summary

> 🚀 Expand your creativity, not your wait time!

## Quick Answers

- **What is this?** FlexFoam-iT! III - Flexible Polyurethane Foam - Gallon Unit by smooth-on
- **How much does it cost?** 6494 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/448590754-flexfoam-it-iii-flexible-polyurethane-foam-gallon-unit)

## Best For

- smooth-on enthusiasts

## Why This Product

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

## Key Features

- • **Rapid 2-Hour Cure:** Get your projects moving fast with a quick, reliable set time.
- • **Trusted by Creators:** Join thousands of artists and makers who rate it 4.6 stars for quality and ease.
- • **Massive 15x Expansion:** Transform a small mix into a large, lightweight foam masterpiece.
- • **Soft, Flexible Finish:** Ideal for propmaking and special effects that demand realism and durability.
- • **Precision 1:2 Mix Ratio:** Easy, accurate blending for consistent, professional results every time.

## Overview

FlexFoam-iT! III is a flexible polyurethane foam that cures to a soft white foam in just 2 hours. With a remarkable 15 times expansion and a simple 1:2 volume mix ratio, it’s perfect for propmaking, special effects, and creative projects requiring lightweight, durable foam. Highly rated by professionals, this gallon unit delivers consistent, high-quality results for arts, crafts, and woodworking applications.

## Description

FlexFoam-iT! III - Flexible Polyurethane Foam - Gallon Unit: desertcart.com: Industrial & Scientific

## Features

- Cures to a soft white foam in 2 hours
- Suitable for propmaking and special effects
- 15 times expansion
- 1:2 by volume mix ratio
- WARNING: Keep Out of Reach of Children. Do not get into eyes or on skin. Do not take internally. Do not breathe fumes. Use only with adequate ventilation. Wear vinyl or nitrile gloves and eye protection when handling this product. Review the technical bulletin prior to use for safe handling instruction.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B2X4FVPT |
| Best Sellers Rank | #29,661 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #1,175 in Craft Foam #1,454 in Sewing Pillow Forms & Foam |
| Brand Name | Smooth-On |
| Color | White |
| Compatible Material | Vinyl |
| Container Type | Can |
| Customer Reviews | 4.6 4.6 out of 5 stars (722) |
| Full Cure Time | 2 Hours |
| Item Form | Foam, Liquid |
| Item Package Quantity | 1 |
| Manufacturer | Smooth-On, Inc. |
| Material Type | Polyurethane |
| Model | FlexFoamItIII |
| Other Special Features of the Product | 15 times expansion |
| Part Number | FlexFoamItIII |
| Specific Uses For Product | Art, Carpentry, Fabric, Furniture, Woodworking |
| UPC | 751635446618 |
| Unit Count | 1.0 Count |
| Viscosity Level | Medium |
| Volume | 277.42 Fluid Ounces |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** Smooth-On
- **Item Form:** Foam, Liquid
- **Material:** Polyurethane
- **Special Feature:** 15 times expansion
- **Specific Uses For Product:** Art, Carpentry, Fabric, Furniture, Woodworking

## Images

![FlexFoam-iT! III - Flexible Polyurethane Foam - Gallon Unit - Image 1](https://m.media-amazon.com/images/I/41aHADK936L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Can i use with plastic? or do i need a release agent?**
A: Urethane foams are adhesive and will stick / bond to many surfaces. We recommend Ease Release™ 2831 to release urethane foam from most surfaces.
If the release application is particularly difficult (example; releasing urethane foam from urethane rubber), we recommend an application of Universal Mold Release™ followed by an application of Ease Release™ 2831. WARNING; Do not use Universal
Mold Release by itself, or any other silicone based release agents. This will collapse the foam.  You MUST perform a small scale test to determine if the release agent you use will work properly with the plastic you are casting against.

**Q: Would this work well for filling a plaster body cast intended to make a dress form for sewing?**
A: I thinking would. It is pretty "squishy " so if that's okay with you then I think it would work well.

**Q: Hi, do you also have smooth on flex foamV or 6?**
A: I am not Amazon and I have not worked with 6 (Pillow soft) but I have a sample of it. The Smooth-On web site says they make sample kits for both products and they are both similar to 3 in that they are measured by volume. The big difference is that they expand less.

**Q: What is the Shore hardness of the resultant foam?**
A: I could not find a Shore Hardness for the Foam (and yes, I know what I was looking for) but since it is their most expansive foam I imagine the number to be quite low. I am not even Shore Hardness applies to foams.

## Frequently Bought Together

- FlexFoam-iT! III - Flexible Polyurethane Foam - Gallon Unit
- Rebound 25 - Brushable Platinum Silicone Rubber - Gallon Unit
- THI-VEX - Thixotropic Agent for Thickening Smooth-On Silicone Rubbers - 1 Ounce Bottle

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**Shop now:** [https://www.desertcart.no/products/448590754-flexfoam-it-iii-flexible-polyurethane-foam-gallon-unit](https://www.desertcart.no/products/448590754-flexfoam-it-iii-flexible-polyurethane-foam-gallon-unit)

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*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-09-18*