---
product_id: 448590195
title: "Foam-iT! 5 - Rigid Polyurethane Foam - Gallon Unit"
brand: "smooth-on"
price: "€ 437.32"
currency: EUR
in_stock: true
category: "Smooth On"
url: https://www.desertcart.at/products/448590195-foam-it-5-rigid-polyurethane-foam-gallon-unit
store_origin: AT
region: Austria
---

# 10x volume expansion 6 min tack-free cure 1:1 mix ratio by volume Foam-iT! 5 - Rigid Polyurethane Foam - Gallon Unit

**Brand:** smooth-on
**Price:** € 437.32
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your craft with Foam-iT! 5 — where speed, strength, and simplicity collide!

## Quick Answers

- **What is this?** Foam-iT! 5 - Rigid Polyurethane Foam - Gallon Unit by smooth-on
- **How much does it cost?** € 437.32 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/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

- • **Durable Density:** 5 lb density perfect for propmaking, gap filling, and industrial use
- • **Effortless Mixing:** Simple 1:1 volume ratio ensures flawless consistency every time
- • **Speed Meets Precision:** Cures tack-free in just 6 minutes to keep your projects moving
- • **Versatile Compatibility:** Bonds seamlessly with ceramic, metal, wood, plastic, and concrete
- • **Maximize Your Creativity:** Expands 10 times its original volume for bold, lightweight builds

## Overview

Foam-iT! 5 is a two-component rigid polyurethane foam that expands 10x its volume and cures tack-free in 6 minutes. With a 5 lb density and an easy 1:1 mix ratio by volume, it’s ideal for propmaking, gap filling, and industrial applications. Compatible with multiple materials and water resistant, it delivers durable, lightweight reinforcement for your most ambitious projects.

## 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.

## 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 | #468,474 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #441 in Urethane Adhesives |
| Brand Name | Smooth-On |
| Color | Beige |
| Compatible Material | Ceramic, Concrete, Metal, Plastic, Wood |
| Container Type | Can |
| Customer Reviews | 4.3 4.3 out of 5 stars (256) |
| Full Cure Time | 2 Hours |
| Item Form | Foam, Liquid |
| Item Package Quantity | 1 |
| Manufacturer | Smooth-On, Inc. |
| Material Type | Castings,Foam,Polyurethane,Urethane |
| Model | FoamIt5 |
| Other Special Features of the Product | Expands 10 times its volume, Cures tack-free in 6 minutes |
| Part Number | FoamIt5 |
| Specific Uses For Product | Craft, Casting, Repair, Woodworking, Furniture, Industrial |
| UPC | 751635482616 |
| Unit Count | 1.0 Count |
| Viscosity Level | Medium |
| Volume | 5 Liters |
| 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!

## 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

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

---

*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-08-08*