--- product_id: 57750114 title: "Smooth-Cast 325 - Ultra Low Viscosity Liquid Plastics -Gallon Unit" brand: "smooth-on" price: "€ 310.99" currency: EUR in_stock: true category: "Smooth On" url: https://www.desertcart.pt/products/57750114-smooth-cast-325-ultra-low-viscosity-liquid-plastics-gallon-unit store_origin: PT region: Portugal --- # 72D Shore hardness 3 min pot life 1:1 mix ratio Smooth-Cast 325 - Ultra Low Viscosity Liquid Plastics -Gallon Unit **Brand:** smooth-on **Price:** € 310.99 **Availability:** ✅ In Stock ## Summary > ⚡ Cast Fast, Color True, Finish Flawless! ## Quick Answers - **What is this?** Smooth-Cast 325 - Ultra Low Viscosity Liquid Plastics -Gallon Unit by smooth-on - **How much does it cost?** € 310.99 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/57750114-smooth-cast-325-ultra-low-viscosity-liquid-plastics-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 - • **Effortless Mixing:** Simple 1:1 volume ratio means less hassle, more precision, and consistent results. - • **Versatile Effects:** Ideal for marble, wood grain, or metallic finishes—unlock endless artistic possibilities. - • **Bubble-Free Finish:** No vacuum degassing needed—get flawless, bubble-free castings every time. - • **Color Neutral Base:** Achieve perfect color matching with a clear amber resin that amplifies pigment vibrancy. - • **Ultra-Fast Casting:** Demold in just 10 minutes—speed up your creative flow without sacrificing quality. ## Overview Smooth-Cast 325 is a professional-grade, ultra low viscosity liquid plastic resin designed for rapid casting with a 3-minute pot life and 10-minute cure time. Its color-neutral clear amber base ensures vivid, accurate pigment results without the need for vacuum degassing, delivering bubble-free, durable castings with a Shore hardness of 72D. Perfect for artists and makers seeking fast, reliable, and versatile resin for detailed color and texture effects. ## Description Smooth-Cast 325 is a fast-cast resin that was developed specifically for adding color pigments and fillers to achieve true color representation or filler effect. The ColorMatch Series is formulated "color neutral". Small amounts of pigment will yield accurate, vivid colors from cured castings (use of Smooth-On SO-Strong pigments is highly recommended). Easy to mix and pour, these resins offer the convenience of a one to one mix ratio (by volume). With a 3 minute pot life: 10 minute demold time: Mixed viscocity 100 cps: 72D shore hardness: color is CLEAR AMBER. Because of its neutral color,it is ideal for creating marble and wood grain casting effects, or duplicating the look of real metal by adding bronze, brass or other metal powder .Read MSDS before use - for more information visit www.smooth-on.com ## Features - PRODUCT PURPOSE: Smooth-Cast 325 is a fast-cast resin that was developed specifically for adding color pigments and fillers to achieve true color representation or filler effect - KEY SPECIFICATIONS: mix ratio (by volume), working time 10 minute demold time: Mi, cure or demold Mixed viscocity 100 cps: 72D shore, color pigments and fillers to a - VERSATILE APPLICATIONS: Small amounts of pigment will yield accurate, vivid colors from cured castings (use of Smooth-On SO-Strong pigments is highly recommended) - WORKABLE PROCESS: Easy to mix and pour, these resins offer the convenience of a one to one mix ratio (by volume) - FINISHED PERFORMANCE: Because of its neutral color,it is ideal for creating marble and wood grain casting effects, or duplicating the look of real metal by adding bronze, brass or other metal powder .Read MSDS before use - for more information visit ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B075DHSD31 | | Best Sellers Rank | #166,468 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #1,147 in Sculpture Molding & Casting Products | | Customer Reviews | 4.5 4.5 out of 5 stars (39) | | Date First Available | September 5, 2017 | | Item Weight | 15 pounds | | Item model number | 48861 | | Manufacturer | Smooth-On, Inc. | | Product Dimensions | 9.6 x 7.8 x 11.8 inches | ## Images ![Smooth-Cast 325 - Ultra Low Viscosity Liquid Plastics -Gallon Unit - Image 1](https://m.media-amazon.com/images/I/61ai5rbtGmL.jpg) ![Smooth-Cast 325 - Ultra Low Viscosity Liquid Plastics -Gallon Unit - Image 2](https://m.media-amazon.com/images/I/41AUa-kJKdL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - Smooth-Cast 325 - Ultra Low Viscosity Liquid Plastics -Gallon Unit - Smooth-On Universal™ Mold Release Spray, 14 fl. oz. Aerosol Can - SO-Strong Colorants - For Urethane Rubbers, Plastics, & Foams - Set of 9 --- ## 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.pt/products/57750114-smooth-cast-325-ultra-low-viscosity-liquid-plastics-gallon-unit](https://www.desertcart.pt/products/57750114-smooth-cast-325-ultra-low-viscosity-liquid-plastics-gallon-unit) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-09-08*