--- product_id: 254560414 title: "Smooth-On Mould Star 20T Silicone Mould Making Rubber - Trial Unit" brand: "smooth-on" price: "₨2595" currency: SCR in_stock: true reviews_count: 5 category: "Smooth On" url: https://www.desertcart.sc/products/254560414-smooth-on-mould-star-20t-silicone-mould-making-rubber-trial store_origin: SC region: Seychelles --- # 30 min demold time Heat resistant to 450°F 1:1 volume mix ratio Smooth-On Mould Star 20T Silicone Mould Making Rubber - Trial Unit **Brand:** smooth-on **Price:** ₨2595 **Availability:** ✅ In Stock ## Summary > ✨ Mold like a pro, create like a visionary! 🔥 ## Quick Answers - **What is this?** Smooth-On Mould Star 20T Silicone Mould Making Rubber - Trial Unit by smooth-on - **How much does it cost?** ₨2595 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/254560414-smooth-on-mould-star-20t-silicone-mould-making-rubber-trial) ## 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 - • **Fast Turnaround Time:** Demold your creations in just 30 minutes and keep your projects moving at lightning speed. - • **Durable & Tear-Resistant:** Soft yet strong silicone rubber that withstands repeated use without losing shape or detail. - • **Translucent & Customizable:** Pourable, clear silicone ideal for adding pigments and achieving stunning, personalized molds. - • **Effortless Precision Mixing:** No scales needed—just equal parts by volume for flawless results every time. - • **Versatile Casting Compatibility:** Perfect for wax, gypsum, resin, concrete, and even low-temp metal alloys—expand your creative horizons. ## Overview Smooth-On Mould Star 20T is a platinum-cure, translucent silicone rubber with a 1:1 volume mix ratio, curing in 30 minutes to a soft, tear-resistant Shore 20A hardness. Heat resistant up to 450°F, it’s ideal for versatile casting applications including resins, wax, gypsum, concrete, and low-temp metal alloys—perfect for professionals seeking fast, durable, and customizable molds. ## Description Mold Star rubbers are easy to use platinum silicones which are mixed 1A:1B by volume (no weighing scale necessary). Mold Star silicones feature relatively low viscosities and vacuum degassing is not required for most applications. Mold Star silicones cure to soft, strong rubbers which are tear resistant and exhibit very low long term shrinkage. Molds made with Mold Star will last a long time in your mold library and are good for casting wax, gypsum, resins, concrete and other materials. Cured Mold Star rubber is heat resistant up to 450°F (232°C) and is suitable for casting low-temperature melt metal alloys. Note: THI-VEX is NOT compatible with Mold Star rubbers. MOLD STAR 20T: MIX RATIO: 1:1 by volume; POT LIFE: 6 minutes; DEMOLD TIME: 30 minutes; SHORE A: 20; COLOR: Transparent Read the MSDS before using. Consult the Technical Bulletin for further information or visit us at www.smooth-on.com Review: Makes about 20oz of silicone, AMAZING PRODUCT - I LOVE this product! I've used it multiple times. Dries within 30 minutes, has about 5 minutes of working time. Will need 2 Kits for larger pieces. It makes about 20-25oz of silicone. CAN be layered, I had a huge piece to mold and didn't have enough to cover the top so waited about a month to finish the process and it still came out perfectly. I mix mica pigment into part A to make custom colors as well, always cured perfectly. Very durable mold. Great for resin crafts. Only problem I have is that it may have too many bubbles for someone's liking. The mold is always perfect but can look a little bubbly. Review: Fishing lure molds. - molds turned out great and have made many prototypes. molds are still as good as when they were cast. ## Features - Packaging may vary Pourable translucent platinum-cure silicone rubber with Shore 20A Hardness ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00LU4YFK6 | | Brand | Smooth-On | | Brand Name | Smooth-On | | Color | Multicolor | | Colour | Multicolor | | Customer Reviews | 4.6 out of 5 stars 714 Reviews | | Item Dimensions | 15 x 14.7 x 8.1 centimeters | | Item Weight | 1.09 kg | | Item dimensions L x W x H | 15 x 14.7 x 8.1 centimeters | | Manufacturer | Smooth-On Inc | | Manufacturer Part Number | 3573423 | | Material | Silicone Rubber Metal | | Material Type | Silicone Rubber Metal | | Model Number | 3573423 | | Number of Items | 1 | | Number of Packs | 1 | | Number of Pieces | 1 | | Number of pieces | 1 | | Shape | Star | | UPC | 751635587410 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Smooth-On - **Colour:** Multicolor - **Item dimensions L x W x H:** 15 x 14.7 x 8.1 centimeters - **Material:** Silicone Rubber Metal - **Shape:** Star ## Images ![Smooth-On Mould Star 20T Silicone Mould Making Rubber - Trial Unit - Image 1](https://m.media-amazon.com/images/I/41xzlWAcZTL.jpg) ![Smooth-On Mould Star 20T Silicone Mould Making Rubber - Trial Unit - Image 2](https://m.media-amazon.com/images/I/41-LZ1nC3uL.jpg) ![Smooth-On Mould Star 20T Silicone Mould Making Rubber - Trial Unit - Image 3](https://m.media-amazon.com/images/I/41gWCuJcRWL.jpg) ## Questions & Answers **Q: What size does this make** A: This kit will yield 51.2 cubic inches of material. **Q: what's the difference between this mold star and the 16 fast?** A: This version has no color - it is cloudy clear. **Q: Will different silicones stick together when making a mold? I ran out so part of my mold is cured?** A: You should be fine with using other silicones if you use a silicone release spray when you create your mold. Something like "Smooth-On Universal Mold Release" would be sufficient. **Q: Been wanting to try this. Is there a step by step tutorial before I buy it ?** A: Yes, if your looking for tutorial videos, go to https://www.smooth-on.com/tutorials/ to learn about the many different mold making techniques. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Makes about 20oz of silicone, AMAZING PRODUCT *by Z***E on 25 August 2019* I LOVE this product! I've used it multiple times. Dries within 30 minutes, has about 5 minutes of working time. Will need 2 Kits for larger pieces. It makes about 20-25oz of silicone. CAN be layered, I had a huge piece to mold and didn't have enough to cover the top so waited about a month to finish the process and it still came out perfectly. I mix mica pigment into part A to make custom colors as well, always cured perfectly. Very durable mold. Great for resin crafts. Only problem I have is that it may have too many bubbles for someone's liking. The mold is always perfect but can look a little bubbly. ### ⭐⭐⭐⭐⭐ Fishing lure molds. *by J***Y on 18 October 2024* molds turned out great and have made many prototypes. molds are still as good as when they were cast. ### ⭐⭐⭐⭐ and the product itself was perfect for what I was doing *by E***E on 31 October 2017* Arrived really quickly, and the product itself was perfect for what I was doing, however, the shape of the containers makes it difficult to pour neatly. ## Frequently Bought Together - Mold Star 20T - 1A:1B Mix by Volume Translucent Platinum Silicone Rubber - Pint Unit - Smooth-On Universal™ Mold Release Spray, 14 fl. oz. Aerosol Can - Smooth-On - Smooth-Cast™ 65D Semi-Rigid Urethane Casting Resin - Trial Size 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.sc/products/254560414-smooth-on-mould-star-20t-silicone-mould-making-rubber-trial](https://www.desertcart.sc/products/254560414-smooth-on-mould-star-20t-silicone-mould-making-rubber-trial) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-08-09*