--- product_id: 2325709 title: "Smooth-On FlexFoam-iT! III Flexible Urethane Foam, Casting Foam, Pint Unit" brand: "smooth-on" price: "₹ 9191" currency: INR in_stock: true reviews_count: 13 category: "Smooth On" url: https://www.desertcart.in/products/2325709-smooth-on-flexfoam-it-iii-flexible-urethane-foam-casting-foam store_origin: IN region: India --- # 2-hour full cure time 1:2 mix ratio by volume Lowest density in series Smooth-On FlexFoam-iT! III Flexible Urethane Foam, Casting Foam, Pint Unit **Brand:** smooth-on **Price:** ₹ 9191 **Availability:** ✅ In Stock ## Summary > ⚡ Expand Your Imagination with FlexFoam-iT!™ III – Lightweight, Fast, and Flexible! ## Quick Answers - **What is this?** Smooth-On FlexFoam-iT! III Flexible Urethane Foam, Casting Foam, Pint Unit by smooth-on - **How much does it cost?** ₹ 9191 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/2325709-smooth-on-flexfoam-it-iii-flexible-urethane-foam-casting-foam) ## 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 - • **Ultra-Light Expansion:** Experience the highest expansion with the lowest density foam in the FlexFoam-iT! lineup, perfect for lightweight yet durable creations. - • **Fast & Flexible Curing:** Achieve a solid, flexible foam in just 2 hours—ideal for rapid prototyping and quick project turnarounds. - • **Precision Mixing Ratio:** Simple 1:2 volume mix ensures consistent results every time, minimizing waste and maximizing efficiency. - • **Trusted by Makers & Pros:** Join thousands of artists and engineers who rely on Smooth-On’s proven formula for professional-grade flexible foam. - • **Versatile Creative Power:** From custom props and squishies to industrial gaskets and padding, unleash your creativity with a foam that adapts to your vision. ## Overview Smooth-On FlexFoam-iT!™ III is a premium, water-blown flexible urethane foam designed for special effects, crafts, and industrial applications. It features the lowest density and highest expansion in its series, cures to a durable flexible solid in 2 hours, and uses a straightforward 1:2 mix ratio by volume. Ideal for making props, custom gaskets, and foam padding, this pint-sized kit empowers professionals and hobbyists alike to create lightweight, resilient foam products with ease. ## Description Smooth-On FlexFoam-iT!™ III Flexible Urethane Foam, Casting Foam for Props, Gaskets, & More - Pint Unit: desertcart.com: Industrial & Scientific 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: Making squishys - Works perfect for squishys my daughter used molds and made them it was alot of fun I help her i recommend older help cuz it can get messy ## 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 | #29,658 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #256 in Sculpture Molding & Casting Products | | Brand | Smooth-On | | Brand Name | Smooth-On | | Color | Clear | | Compatible Material | Foam | | Container Type | Pint | | Customer Reviews | 4.6 out of 5 stars 722 Reviews | | Full Cure Time | 2 Hours | | Item Form | Liquid | | Item Package Quantity | 1 | | Item Weight | 2.49 Pounds | | Manufacturer | Smooth-On, Inc. | | Material | Polyurethane | | Material Type | Polyurethane | | Model | SOFF3 | | Other Special Features of the Product | Strong | | Part Number | 44644 | | Special Feature | Strong | | Specific Uses For Product | Craft | | UPC | 751635446410 | | Unit Count | 44.16 Ounce | | Viscosity Level | Medium | | Volume | 473.18 Milliliters | | Water Resistance Level | Not Water Resistant | ## Product Details - **Brand:** Smooth-On - **Item Form:** Liquid - **Material:** Polyurethane - **Special Feature:** Strong - **Specific Uses For Product:** Craft ## Images ![Smooth-On FlexFoam-iT! III Flexible Urethane Foam, Casting Foam, Pint Unit - Image 1](https://m.media-amazon.com/images/I/61opt1RTmIL.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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great for making squishies *by D***W on December 18, 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. ### ⭐⭐⭐⭐⭐ Making squishys *by S***D on August 10, 2025* Works perfect for squishys my daughter used molds and made them it was alot of fun I help her i recommend older help cuz it can get messy ### ⭐⭐⭐⭐⭐ Please read!!!!!! *by J***N on October 15, 2021* This is not for the faint of heart. It is toxic and very very unforgiving. Please watch YouTube videos and read their site for help. It’s insanely sticky, so use silicon forms where you’re pouring. Measure!!! Use a scale, it makes it so much easier. 1A:2B or .575 difference. 10 grams A = 17.3g B. This is insanely important. Very unforgiving. Yellow bottle is the hardener…. Too much yellow it’s too hard or doesn’t expand. Too much blue bottle it doesn’t stay expanded and looks weird. Mix until 35 seconds and your shoulder is on fire. When you combine the chemicals after measuring exactly, mix immediately and use a timer. Mix until your shoulder burns. Really really really mix. Minimum 35 seconds, then pour. Lastly, it doesn’t like cold. Has to be 72+ or it doesn’t fully expand. This is all listed on the website and 100% accurate. Measure - mix - warm - remove after 25 min. It’s a great product and has a lot of uses if you can do the above. ## 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.in/products/2325709-smooth-on-flexfoam-it-iii-flexible-urethane-foam-casting-foam](https://www.desertcart.in/products/2325709-smooth-on-flexfoam-it-iii-flexible-urethane-foam-casting-foam) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-08-07*