---
product_id: 254560414
title: "Mould Star 20T Silicone Mould Making Rubber - Trial Unit"
brand: "smooth-on"
price: "€ 195.54"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/254560414-mould-star-20t-silicone-mould-making-rubber-trial-unit
store_origin: NL
region: Netherlands
---

# Fast demold in 30 minutes Heat resistant up to 450°F (232°C) 1:1 volume mix ratio, no scale needed Mould Star 20T Silicone Mould Making Rubber - Trial Unit

**Brand:** smooth-on
**Price:** € 195.54
**Availability:** ✅ In Stock

## Summary

> ⚡ Mold like a pro, cast like a boss!

## Quick Answers

- **What is this?** Mould Star 20T Silicone Mould Making Rubber - Trial Unit by smooth-on
- **How much does it cost?** € 195.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/254560414-mould-star-20t-silicone-mould-making-rubber-trial-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

- • **Rapid Turnaround:** Demold your creations in just 30 minutes—speed up your prototyping workflow.
- • **Durable & Tear-Resistant:** Soft yet strong silicone rubber that withstands repeated use without cracking or shrinking.
- • **Heat-Resistant Reliability:** Withstands temperatures up to 450°F, ideal for demanding casting projects.
- • **Effortless Precision Mixing:** Mix 1A:1B by volume—no weighing scale required, saving you time and hassle.
- • **Versatile Casting Compatibility:** Perfect for wax, gypsum, resins, concrete, and even low-temp metal alloys.

## Overview

Smooth-On Mould Star 20T is a translucent platinum-cure silicone rubber with a user-friendly 1:1 volume mix ratio. It cures quickly to a soft, tear-resistant mold with low shrinkage, heat resistance up to 450°F, and broad compatibility with casting materials—perfect for professionals seeking durable, fast, and versatile mold-making solutions.

## Description

Smooth-On Mould Star 20T Silicone Mould Making Rubber - Trial Unit

## Features

- Packaging may vary Pourable translucent platinum-cure silicone rubber with Shore 20A Hardness

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Smooth-On |
| Model Number | 3573423 |
| Color | Multicolor |
| Product Dimensions | 14.99 x 14.73 x 8.13 cm; 1.09 Kilograms |
| Material | Rubber |
| Item Weight | 1.09 Kilograms |

## Product Details

- **Material:** Silicone Rubber Metal
- **Colour:** Multicolor
- **Brand:** Smooth-On
- **Item dimensions L x W x H:** 15 x 14.7 x 8.1 centimeters
- **Shape:** Star

## Images

![Mould Star 20T Silicone Mould Making Rubber - Trial Unit - Image 1](https://m.media-amazon.com/images/I/41xzlWAcZTL.jpg)

## Available Options

This product comes in different **Size** options.

## 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.

## 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

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**Shop now:** [https://www.desertcart.nl/products/254560414-mould-star-20t-silicone-mould-making-rubber-trial-unit](https://www.desertcart.nl/products/254560414-mould-star-20t-silicone-mould-making-rubber-trial-unit)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-18*