---
product_id: 448590195
title: "Foam-iT! 5 - Rigid Polyurethane Foam - Gallon Unit"
brand: "smooth-on"
price: "105.06 OMR"
currency: OMR
in_stock: true
reviews_count: 8
category: "Smooth On"
url: https://www.desertcart.com.om/products/448590195-foam-it-5-rigid-polyurethane-foam-gallon-unit
store_origin: OM
region: Oman
---

# 10x volume expansion 6 min tack-free cure 5 lb/ft³ density Foam-iT! 5 - Rigid Polyurethane Foam - Gallon Unit

**Brand:** smooth-on
**Price:** 105.06 OMR
**Availability:** ✅ In Stock

## Summary

> 🚀 Expand Your Creativity, Cure Your Projects Faster!

## Quick Answers

- **What is this?** Foam-iT! 5 - Rigid Polyurethane Foam - Gallon Unit by smooth-on
- **How much does it cost?** 105.06 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/448590195-foam-it-5-rigid-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

- • **Water-Resistant & Durable:** Ideal for long-lasting repairs and reinforcements in demanding environments.
- • **Versatile 5 lb Density Foam:** Perfect balance of rigidity and lightweight support for props, repairs, and industrial use.
- • **Fast Tack-Free Cure in 6 Minutes:** Get rapid handling and reduced downtime for your projects.
- • **Maximize Efficiency with 10x Expansion:** Transforms small batches into large, durable foam structures effortlessly.
- • **Precision Mixing with 1:1 Volume Ratio:** Simplifies preparation, ensuring consistent, reliable results every time.

## Overview

FOAM-iT! 5 is a two-component rigid polyurethane foam that expands 10 times its original volume and cures tack-free in just 6 minutes. With a 5 lb density, it offers strong, lightweight support ideal for propmaking, gap filling, and industrial repairs. Its easy 1:1 mix ratio by volume ensures precise, hassle-free preparation, while its water resistance and durability make it a trusted choice for professionals seeking fast, reliable foam solutions.

## Description

NOT suitable for making 'squishies'. FOAM-iT! Series consists of two-component rigid foams that are versatile and easy to use. the mixture will expand many times original volume (depending on which FOAM-iT! product you are using) and develop a uniform cell structure.Developed for a variety of industrial and special effects applications, these foam products can be pigmented to achieve various color effects. FOAM-iT! foams are especially useful as reinforcement for hollow castings. FOAM-iT! 5 - MIX RATIO: 1A:1B by volume - approx. 10X expansion; POT LIFE: 1.5 mins; CURE TIME: 2 hrs; COLOR: BEIGE Read the MSDS before using.

Review: Fiberglass Tub Repair - This is much better a product to use than Great Stuff if you are repairing cracks in a fiberglass tub. Offers superior support and hardens quickly. I will definitely order again.
Review: Great test sized product! - Perfect sized product for a test we were doing before ordering larger quantities. Easy mixing instructions and a decent work time of 1.5 minutes. Super strong once it has set up.

## Features

- Two component castable rigid urethane foam
- Expands 10 times its volume
- Cures tack-free in 6 minutes
- 5 pound density - great for propmaking, gap filling and more
- Easy to measure and mix - 1:1 mix ratio by volume

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B2X43V87 |
| Best Sellers Rank | #266,001 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #252 in Urethane Adhesives |
| Brand | Smooth-On |
| Color | Beige |
| Date First Available | October 3, 2014 |
| Full Cure Time | 2 Hours |
| Item Form | Foam,Liquid |
| Item Package Quantity | 1 |
| Item Volume | 5 Liters |
| Item Weight | 17.7 pounds |
| Item model number | FoamIt5 |
| Manufacturer | Smooth-On, Inc. |
| Material | Castings,Foam,Polyurethane,Urethane |
| Package Information | Can |
| Special Feature | Expands 10 times its volume, Cures tack-free in 6 minutes |
| Specific Uses For Product | Craft, Casting, Repair, Woodworking, Furniture, Industrial |
| UPC | 751635482616 |
| Unit Count | 1.0 Count |
| Viscosity | 3E+2 Centipoise |
| Viscosity Level | Medium |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** Smooth-On
- **Item Form:** Foam,Liquid
- **Material:** Castings,Foam,Polyurethane,Urethane
- **Special Feature:** Expands 10 times its volume, Cures tack-free in 6 minutes
- **Specific Uses For Product:** Craft, Casting, Repair, Woodworking, Furniture, Industrial

## Images

![Foam-iT! 5 - Rigid Polyurethane Foam - Gallon Unit - Image 1](https://m.media-amazon.com/images/I/41aeWybT5gL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can this product be sanded down and painted after it cures?  Will this product stick to metal?  Is this product water proof?**
A: Sanded = yes.  Painted = Do some research on painting of foam and check the Smooth-On website for more info.  Stick to metal = Yes.  Water-proof = It is not a foam for nautical use if that is what you are asking.

**Q: is this for molds?**
A: Pouring final products or to make molds either works

**Q: putting in a gypsum cement mold will vasiline work for the release? thanks**
A: No, Vaseline won't release the foam from the gypsum. As long as your mold doesn't have a lot of convolutions and/or undercuts, you can get good results from sealing the mold surface with 2 or three layers of shellac and using a mold wax to release the foam.

You're much better of casting this foam in silicone molds.

**Q: When put it in a silicone mold and wait for it to dry, it hardens. I want it to be soft. Is my measurements wrong or am I buying the wrong series?**
A: Hi, I too ordered the rigid by accident.  I still need to return.  We now have the flex foam 3.... this is the kind you need.  My daughter makes "squishes" with it!  Glad to have helped since I just went through the exact same thing!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fiberglass Tub Repair
*by A***R on November 5, 2023*

This is much better a product to use than Great Stuff if you are repairing cracks in a fiberglass tub. Offers superior support and hardens quickly. I will definitely order again.

### ⭐⭐⭐⭐⭐ Great test sized product!
*by J***L on October 2, 2019*

Perfect sized product for a test we were doing before ordering larger quantities. Easy mixing instructions and a decent work time of 1.5 minutes. Super strong once it has set up.

### ⭐⭐⭐⭐ I used it to reinforces faux rocks
*by T***M on November 18, 2022*

Great and versatile product. I have used it for body casting and reinforcing faux rocks for photography props.

## Frequently Bought Together

- Foam-iT! 5 - Rigid Polyurethane Foam - Gallon Unit
- Smooth-On Universal Mold Release - 14 Fluid Ounce Aerosol Can
- Smooth-On FlexFoam-iT!™ III Flexible Urethane Foam, Casting Foam for Props, Gaskets, & More - Pint Unit

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**Shop now:** [https://www.desertcart.com.om/products/448590195-foam-it-5-rigid-polyurethane-foam-gallon-unit](https://www.desertcart.com.om/products/448590195-foam-it-5-rigid-polyurethane-foam-gallon-unit)

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-02-17*