---
product_id: 257869464
title: "Flex Foam-It! 3 Pourable Flexible Foam Trial Unit by Smooth-On, Inc."
brand: "smooth-on"
price: "$620453"
currency: COP
in_stock: true
reviews_count: 5
category: "Smooth On"
url: https://www.desertcart.co/products/257869464-flex-foam-it-3-pourable-flexible-foam-trial-unit-by
store_origin: CO
region: Colombia
---

# 35 sec pot life, 2 hr cure customizable with colorants 15x volume expansion Flex Foam-It! 3 Pourable Flexible Foam Trial Unit by Smooth-On, Inc.

**Brand:** smooth-on
**Price:** $620453
**Availability:** ✅ In Stock

## Summary

> 🧩 Transform ideas into flexible reality with FlexFoam-It III!

## Quick Answers

- **What is this?** Flex Foam-It! 3 Pourable Flexible Foam Trial Unit by Smooth-On, Inc. by smooth-on
- **How much does it cost?** $620453 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/257869464-flex-foam-it-3-pourable-flexible-foam-trial-unit-by)

## 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

- • **Fast & Efficient:** Quick 35-second pot life and fully cures in just 2 hours to keep your workflow smooth
- • **Mix & Match Colors:** Compatible with SO-Strong, UVO, and Ignite colorants for personalized finishes
- • **Expand Your Creativity:** Expands up to 15 times its original volume for maximum project impact
- • **Lightweight Versatility:** Ultra-light flexible foam perfect for props, padding, and custom crafts
- • **Professional Grade Reliability:** Trusted polyurethane formula delivering consistent, durable results every time

## Overview

Smooth-On FlexFoam-It III is a premium water-blown polyurethane foam that expands 15x in volume, cures in 2 hours, and offers a lightweight, flexible solution ideal for special effects, custom padding, and creative projects. Mix parts A and B at a 1:2 ratio, customize with colorants, and enjoy fast curing for professional-grade results.

## Description

FlexFoam-It III from Smooth-On is a premium quality water blown flexible foam that will expand 15x the original volume. Light weight and versatile, FlexFoam-IT III can be used for a variety of projects, special effects and arts & crafts, including theatrical props, custom padding, and more. Parts A and B are mixed at a ratio of 1A:2B by volume, and poured into a mold. Mixture will rise and cure quickly to a solid state. Pot life is 35 seconds and cure time is 2 hours. Stir or shake both Part A & B before use. Can be colored with SO-Strong, UVO, and Ignite colorants.

Review: La caja llegó bastante maltratada y la paquetería tardó mucho pero el material es tal cual y útil, deberían incluir instrucciones en español
Review: We have made foam toys with this kit and its fantastic. Does exactly as promised. 2 polymers combining in a chemical reaction to make a squishy toy. Be careful and adhere to the safety instructions.

## Features

- manufacturer: Smooth-On
- Item Trademark: SMOOTH-ON
- Item Weight: pounds, pounds, 2.49, 2.49
- Item Category: Bonding Adhesives

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00I6LYDE4 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #125,781 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #32 in Expanding Foams |
| Color | Clear |
| Customer Reviews | 4.5 4.5 out of 5 stars (696) |
| Date First Available | 27 July 2016 |
| Item model number | SOFF3 |
| Material Type(s) | Polyurethane |
| Product Dimensions | 20.32 x 20.32 x 15.24 cm; 1.13 kg |

## Product Details

- **Brand:** Smooth-On
- **Item form:** Liquid
- **Material:** Polyurethane
- **Special features:** Strong
- **Specific uses for product:** Craft

## Images

![Flex Foam-It! 3 Pourable Flexible Foam Trial Unit by Smooth-On, Inc. - Image 1](https://m.media-amazon.com/images/I/61opt1RTmIL.jpg)

## 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.

## Customer Reviews

### ⭐⭐⭐ Review
*by A***L on 25 March 2025*

La caja llegó bastante maltratada y la paquetería tardó mucho pero el material es tal cual y útil, deberían incluir instrucciones en español

### ⭐⭐⭐⭐⭐ Review
*by J***W on 3 January 2019*

We have made foam toys with this kit and its fantastic. Does exactly as promised. 2 polymers combining in a chemical reaction to make a squishy toy. Be careful and adhere to the safety instructions.

### ⭐⭐⭐⭐⭐ Review
*by A***O on 30 May 2021*

This product i used specifically to make "fursuit" foam feet with. Following instructions carefully makes great casts. 1 disclaimer, make sure you use it in a warm environment or the solutions become stiff and your cast will fail.

## Frequently Bought Together

- Smooth-On FlexFoam-iT!™ III Flexible Urethane Foam, Casting Foam for Props, Gaskets, & More - Pint Unit
- Smooth-On Universal™ Mold Release Spray, 14 fl. oz. Aerosol Can
- Rebound 25 - Brushable Platinum Silicone Rubber - Gallon Unit

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*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-03-10*