--- product_id: 16459202 title: "Smooth-On Smooth-Cast 305 Liquid Plastic Resin, Pint Unit" brand: "smooth-on" price: "MX$1958" currency: MXN in_stock: true category: "Smooth On" url: https://www.desertcart.mx/products/16459202-smooth-on-smooth-cast-305-liquid-plastic-resin-pint-unit store_origin: MX region: Mexico --- # Ultra-low viscosity for bubble-free pours Durable with 21 MPa tensile strength Fast 30-minute cure time Smooth-On Smooth-Cast 305 Liquid Plastic Resin, Pint Unit **Brand:** smooth-on **Price:** MX$1958 **Availability:** ✅ In Stock ## Summary > ⚡ Cast fast, cast flawless — unleash your creative edge! ## Quick Answers - **What is this?** Smooth-On Smooth-Cast 305 Liquid Plastic Resin, Pint Unit by smooth-on - **How much does it cost?** MX$1958 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/16459202-smooth-on-smooth-cast-305-liquid-plastic-resin-pint-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 - • **Simple 1:1 Mix Ratio:** Easy-to-use formula saves time and reduces errors in your workflow. - • **Speed Meets Strength:** Cures fully in just 30 minutes while delivering tough, durable parts. - • **Portable & Water Resistant:** Take your projects anywhere with a compact, water-resistant resin solution. - • **Versatile Creative Freedom:** Ideal for sculptures, prototypes, and special effects with bright white finish. - • **Effortless Precision Casting:** Ultra-low viscosity ensures smooth, bubble-free results every time. ## Overview Smooth-On Smooth-Cast 305 is a professional-grade, ultra-low viscosity urethane resin designed for quick, bubble-free castings. With a simple 1:1 mix ratio and a rapid 30-minute cure time, it produces bright white, durable parts boasting 21 MPa tensile strength. Perfect for small to medium sculptures, prototypes, and special effects, this portable, water-resistant resin empowers creators to bring their visions to life with precision and speed. ## Description desertcart.com: Smooth-On Smooth-Cast 305 Liquid Plastic Resin, Pint Unit | For Special Effects, & More, White : Industrial & Scientific ## Features - Ultra-Low Viscosity Casting Resin - Virtually bubble-free, bright white resin for quick, versatile castings. - Broad Application - A fast cure resin for small to medium sculptures, prototype models, special effects props, etc. - Mix Ratio of 1:1 By Volume - Easy to use urethane resin - Cure Time of 30 minutes - Cures tough & durable. - Great For Mind-Blowing Effects - The Smooth-Cast Series resin casting kits are excellent for a wide array of coloring & effects. - 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 | B00ZGOSTTY | | Best Sellers Rank | #46,001 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #387 in Sculpture Molding & Casting Products | | Brand | Smooth-On | | Brand Name | Smooth-On | | Color | White | | Compatible Material | Plastic, Polyurethane | | Container Type | Bottle | | Customer Reviews | 4.6 out of 5 stars 228 Reviews | | Full Cure Time | 30 minutes | | Item Form | Liquid | | Item Package Quantity | 1 | | Item Weight | 2 pounds | | Manufacturer | Smooth-On, Inc. | | Material | Plastic | | Material Type | Plastic | | Model | Smooth-Cast 305 | | Number of Pieces | 2 | | Other Special Features of the Product | Portable | | Part Number | FBASOSC305Trial | | Special Feature | Portable | | Tensile Strength | 21 megapascals | | UPC | 035239000262 | | Viscosity Level | Low | | Volume | 16 fluid ounces | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** Smooth-On - **Color:** White - **Item Form:** Liquid - **Material:** Plastic - **Special Feature:** Portable ## Images ![Smooth-On Smooth-Cast 305 Liquid Plastic Resin, Pint Unit - Image 1](https://m.media-amazon.com/images/I/71OvxkSuDSL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: I want to make a mold of my dogs paw print. Will it pour into a print in the mudd and make a mold?** A: I would think the moisture would inhibit the curing of the resin, another way to get that imprint would be to pour plaster into the muddy pawprint and let it harden then wash off the mud. **Q: How is the pot life? I dont have a pressure pot so I need a slow set resin for figure parts. This still may not be enough time for me** A: Smooth On has three white resins: Smooth Cast 300 is way too fast for me - 3 minutes - the stream of resin I am pouring into a 2nd or 3rd mold becomes a frozen waterfall. Smooth Cast 305 works for me: pot life of 7 minutes so I pour it (clear) into my mold and after 5 minutes it starts to turn cloudy and its cured in 30 minutes. I have never bought it but the literature says they have Smooth Cast 310 with a pot life of 15-20 minutes, cure time 3-4 hours. **Q: How resistant to ultraviolet light is this material?** A: Hard to say. I never really thought about that. I usually paint my casted pieces, however I have many extra's casts, that have been laying around for several years, and I do not see any discoloration or any other aging effects. I'd need more information as to what you want to cast, to know if this is the right choice for you, as there are many other casting materials, such as plasters and resins. My advice is to test it out. It's not terribly expensive. You might really like it. I love the stuff, **Q: I’m looking for a very mailable, rubber, casting material, any suggestions?** A: for the molds or the items cast out of a mold? with the right mold release, or a PVA liner you can cast silicone into silicone. I also like flexible urethane expanding foam rubber (most of them are self skinning). You can get it in rigid or flexible, and it expands like the cans of greatstuff insulation, but stays foamy/flexible, and it much less expensive than latex foam rubber. ## Frequently Bought Together - Smooth-On Smooth-Cast™ 305 Liquid Plastic Resin for Special Effects, & More, White - Pint Unit - Mold Star 15 Slow - 1A:1B Mix by Volume Platinum Silicone Rubber - Pint Unit - Smooth-On Universal Mold Release - 14 Fluid Ounce Aerosol Can --- ## 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.mx/products/16459202-smooth-on-smooth-cast-305-liquid-plastic-resin-pint-unit](https://www.desertcart.mx/products/16459202-smooth-on-smooth-cast-305-liquid-plastic-resin-pint-unit) --- *Product available on Desertcart Mexico* *Store origin: MX* *Last updated: 2026-09-15*