---
product_id: 448590754
title: "FlexFoam-iT! III - Flexible Polyurethane Foam - Gallon Unit"
brand: "smooth-on"
price: "₪1273"
currency: ILS
in_stock: true
url: https://www.desertcart.co.il/products/448590754-flexfoam-it-iii-flexible-polyurethane-foam-gallon-unit
store_origin: IL
region: Israel
---

# 15x expansion Cures in 2 hours 1:2 mix ratio FlexFoam-iT! III - Flexible Polyurethane Foam - Gallon Unit

**Brand:** smooth-on
**Price:** ₪1273
**Availability:** ✅ In Stock

## Summary

> 🎨 Foam Your Way to Fabulous!

## Quick Answers

- **What is this?** FlexFoam-iT! III - Flexible Polyurethane Foam - Gallon Unit by smooth-on
- **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.co.il](https://www.desertcart.co.il/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

- • **Safety First:** Craft with confidence—always prioritize safety with proper ventilation and protective gear.
- • **Rapid Results:** Experience a quick cure time of just 2 hours, so you can bring your projects to life without delay.
- • **Precision Mixing:** Achieve flawless results with a simple 1:2 by volume mix ratio, ensuring consistency in every batch.
- • **Generous Expansion:** Watch your ideas grow with an impressive 15 times expansion, making every drop count.
- • **Transformative Creativity:** Unleash your imagination with FlexFoam-iT! III, perfect for propmaking and special effects.

## Overview

FlexFoam-iT! III is a flexible polyurethane foam that cures to a soft white finish in just 2 hours. Ideal for propmaking and special effects, it boasts a remarkable 15 times expansion and a straightforward 1:2 by volume mix ratio, making it a go-to choice for creative professionals. Always prioritize safety by using protective gear and ensuring adequate ventilation during use.

## Description

FlexFoam-iT! III - Flexible Polyurethane Foam - Gallon Unit

## 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.

## Product Details

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

## 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.co.il/products/448590754-flexfoam-it-iii-flexible-polyurethane-foam-gallon-unit](https://www.desertcart.co.il/products/448590754-flexfoam-it-iii-flexible-polyurethane-foam-gallon-unit)

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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-02-20*