--- product_id: 376690457 title: "Flex Foam-iT! III Flexible Polyurethane Foam - Trial Unit | For Props, Gaskets, & More" brand: "smooth-on" price: "€ 161.44" currency: EUR in_stock: true reviews_count: 5 category: "Smooth On" url: https://www.desertcart.fr/products/376690457-flex-foam-it-iii-flexible-polyurethane-foam-trial-unit-props store_origin: FR region: France --- # 2-hour full cure time 1:2 mix ratio (Part A:B) 15x volume expansion Flex Foam-iT! III Flexible Polyurethane Foam - Trial Unit | For Props, Gaskets, & More **Brand:** smooth-on **Price:** € 161.44 **Availability:** ✅ In Stock ## Summary > 🚀 Expand your creativity with FlexFoam-iT! III — where imagination takes shape fast! ## Quick Answers - **What is this?** Flex Foam-iT! III Flexible Polyurethane Foam - Trial Unit | For Props, Gaskets, & More by smooth-on - **How much does it cost?** € 161.44 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/376690457-flex-foam-it-iii-flexible-polyurethane-foam-trial-unit-props) ## 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 - • **Pro-Level Finish:** Compatible with SO-Strong, UVO, and Ignite colorants for vibrant, lasting effects. - • **Rapid 2-Hour Cure:** Fast curing lets you move from mold to masterpiece in just 2 hours. - • **Precision Mix Ratio:** Simple 1:2 volume mix ensures consistent, reliable results every time. - • **Versatile Creative Canvas:** Perfect for props, custom padding, gaskets, and arts & crafts projects. - • **Ultra-Light Expansion Power:** Expands up to 15 times its original volume for maximum creative freedom. ## Overview FlexFoam-iT! III is a premium water-blown flexible polyurethane foam that expands 15x its original volume and cures to a solid, flexible form in 2 hours. With a precise 1:2 mix ratio and low viscosity, it’s ideal for special effects, props, custom padding, and industrial applications. Lightweight and compatible with multiple colorants, it empowers professionals and hobbyists alike to create durable, high-quality foam projects quickly and easily. ## 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: Great for making squishies - Buying squishies and repainting them or buying unpainted ones and painting them yourself is cool, but making your own is even better. I use silicone baking molds, candy molds and ice molds to cast mine and have had great results. This starter package will make a LOT of squishies. It is easy and the company's web site has great videos explaining everything. BE SURE to pick up lots of paint stirring sticks at some place that sells house paint because you will need them. This is great stuff an easy to use. Just know that once you mix the two parts (A & B) together you have have 30 seconds of so to get it in the molds. This is very different from acrylic casting which has a much longer pot life. Review: Tarda en llegar - La caja llegó bastante maltratada y la paquetería tardó mucho pero el material es tal cual y útil, deberían incluir instrucciones en español ## Features - Premium Flexible Foam - High-grade water-blown liquid expanding foams for special effects, industrial, & arts & crafts projects. - Versatile Application - Ideal pourable foam for making props, industrial gaskets, custom foam padding, etc. - Mix Ratio of 1:2 By Volume - 2 Part Foam Kit - Cure Time of 2 hours - Cures to a solid, flexible foam. - FlexFoam-iT! III expanding foam mix has the lowest density & expands the most in the FlexFoam-iT! Series. - Perform a small-scale test of your project materials to determine suitability and compatibility. Refer to the technical bulletin for more information - available on our website. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00I6LYDE4 | | Best Sellers Rank | #864,682 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #127 in Sculpture Modeling Compounds | | Brand | Smooth-On | | Brand Name | Smooth-On | | Colour | Clear | | Compatible Material | Vinyl | | Container Type | Bottle | | Country of Publication | USA | | Customer Reviews | 4.5 out of 5 stars 703 Reviews | | Full Cure Time | 2 Hours | | Item Form | Liquid | | Item Package Quantity | 1 | | Item Weight | 1.13 kg | | Manufacturer | Smooth-On, Inc. | | Manufacturer Part Number | 44644 | | Material | Polyurethane | | Material Type | Polyurethane | | Model | SOFF3 | | Other Special Features of the Product | Fast Drying | | Special Feature | Fast Drying | | Specific Uses For Product | Art | | UPC | 751635446410 | | Unit Count | 1.0 Count | | Viscosity Level | Low | | Volume | 473.18 Millilitres | | Water Resistance Level | Not Water Resistant | ## Product Details - **Brand:** Smooth-On - **Item Form:** Liquid - **Material:** Polyurethane - **Special Feature:** Strong - **Specific Uses For Product:** Art ## Images ![Flex Foam-iT! III Flexible Polyurethane Foam - Trial Unit | For Props, Gaskets, & More - 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 ### ⭐⭐⭐⭐⭐ Great for making squishies *by D***W on 18 December 2018* Buying squishies and repainting them or buying unpainted ones and painting them yourself is cool, but making your own is even better. I use silicone baking molds, candy molds and ice molds to cast mine and have had great results. This starter package will make a LOT of squishies. It is easy and the company's web site has great videos explaining everything. BE SURE to pick up lots of paint stirring sticks at some place that sells house paint because you will need them. This is great stuff an easy to use. Just know that once you mix the two parts (A & B) together you have have 30 seconds of so to get it in the molds. This is very different from acrylic casting which has a much longer pot life. ### ⭐⭐⭐ Tarda en llegar *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 ### ⭐⭐⭐⭐⭐ This kit is the bomb *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. ## 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 --- ## 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.fr/products/376690457-flex-foam-it-iii-flexible-polyurethane-foam-trial-unit-props](https://www.desertcart.fr/products/376690457-flex-foam-it-iii-flexible-polyurethane-foam-trial-unit-props) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-08-18*