---
product_id: 48207962
title: "Mold Star 30 Mouldmaking Silicone Rubber - Trial Unit"
brand: "smooth-on"
price: "NT$4440"
currency: TWD
in_stock: true
url: https://www.desertcart.tw/products/48207962-mold-star-30-mouldmaking-silicone-rubber-trial-unit
store_origin: TW
region: Taiwan
---

# 45 min pot life Heat resistant to 450°F 30A Shore hardness Mold Star 30 Mouldmaking Silicone Rubber - Trial Unit

**Brand:** smooth-on
**Price:** NT$4440
**Availability:** ✅ In Stock

## Summary

> 🔥 Mold like a pro, last like a legend!

## Quick Answers

- **What is this?** Mold Star 30 Mouldmaking Silicone Rubber - Trial Unit by smooth-on
- **How much does it cost?** NT$4440 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/48207962-mold-star-30-mouldmaking-silicone-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

- • **No Vacuum Needed:** Skip the extra equipment—easy, bubble-free molds without vacuum degassing
- • **Durable & Tear-Resistant:** Soft yet strong silicone rubber built to withstand repeated use
- • **Heat-Resistant Performance:** Withstands up to 450°F, ideal for demanding projects
- • **Effortless Precision Mixing:** 1:1 volume ratio for flawless mold consistency every time
- • **Versatile Casting Compatibility:** Perfect for wax, gypsum, resins, concrete & more—expand your creative horizons

## Overview

Smooth-On Mold Star 30 is a platinum silicone rubber mold mix that cures into a durable, tear-resistant material with a 30A Shore hardness. It features a simple 1:1 mix ratio, 45-minute pot life, and cures in 6 hours. Heat resistant up to 450°F, it’s perfect for casting wax, gypsum, resins, concrete, and more—no vacuum degassing required.

## Description

Smooth-On Mold Star 30 Mouldmaking Silicone Rubber - Trial Unit

## Features

- Easy to use platinum silicone mold mix
- Cures to a soft, stong, tear resistant rubber
- Good for casting wax, gypsum, resins, concrete and more
- Harder material than Mold Star 15 and 16 with a 30A Shore hardness
- Mix ratio is 1A:1B by volume, pot life 45 minutes & cure time of 6 hours

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Smooth-On |
| Model Number | moldstar30 |
| Colour | Blue |
| Product Dimensions | 19.1 x 15.19 x 7.59 cm; 590 g |
| Material | Silicone |
| Special Features | Heat Resistant |
| Item Weight | 590 g |

## Product Details

- **Material:** Silicone
- **Colour:** Blue
- **Brand:** Smooth-On
- **Item dimensions L x W x H:** 19.1 x 15.2 x 7.6 centimetres
- **Shape:** Star

## Images

![Mold Star 30 Mouldmaking Silicone Rubber - Trial Unit - Image 1](https://m.media-amazon.com/images/I/81MxIlm4+KL.jpg)

## Questions & Answers

**Q: whats the difference between oomo 30 and moldstar ?**
A: OOMOO 30 has a Shore hardness rating of 00-30, which is about as squishy as a gel shoe insert. Moldstar 30 is a hardness of Shore A-30, which is closer to pencil eraser hardness. It’s confusing, but there are 2 Shore hardness scales and a 30 on one is very different from a 30 on the other. In the description when it talks about hardness, pay attention to whether it says Shore A or Shore 00.

**Q: What color is this silicone? Can I use mica powders to color it**
A: It is blue when mixed, and very opaque, so I doubt powders will be able to color it much if at all. If you're looking to label your molds, I've 3D printed mirrored text using a raft, and set it into the mixed material. It floats, and pulls away cleanly once the material is cured.

If you want a platinum cure 2 part silicone around shore-A 30 you can color, I might suggest DragonSkin 30 or Platsil Gel-25.

**Q: Hi. i've made a wax mold of a small animal bone using this silicone method. i'm curious if i can use clay as well. i'm looking to make jewelry..**
A: On Smooth On's website it states that this line of mold will not work with modeling clays that contain sulfur. Their website was very helpful and has lots of information: http://www.smooth-on.com/Silicone-Rubber-an/c2_1115_1341/index.html

**Q: Is this food safe?**
A: No. Smooth On does however make a food safe silicone called Smooth -Sil 940

## Frequently Bought Together

- Smooth-On Mold Star 30-1A:1B Mix by Volume Platinum Silicone Rubber - Pint Unit
- Smooth-On Universal Mold Release - 14 Fluid Ounce Aerosol Can
- Smooth-Cast™ 300: Bright White, Low Viscosity, Liquid Plastic Casting Resin - Pint Unit

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-01-22*