What size does this make

This kit will yield 51.2 cubic inches of material.

what's the difference between this mold star and the 16 fast?

This version has no color - it is cloudy clear.

Will different silicones stick together when making a mold? I ran out so part of my mold is cured?

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.

Been wanting to try this. Is there a step by step tutorial before I buy it ?

Yes, if your looking for tutorial videos, go to https://www.smooth-on.com/tutorials/ to learn about the many different mold making techniques.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Mould Star 20T Silicone Mould Making Rubber - Trial Unit | Silicone Rubber

Product ID: 254560414

Details

Brand
Smooth-On
Colour
Multicolor
Item dimensions L x W x H
15 x 14.7 x
Material
Silicone Metal
Shape
Star

🔥Heat resistant up to 450°F (232°C)

⏱️Fast demold in 30 minutes

⚖️1:1 volume mix ratio, no scale needed

¥25180

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✨ Mold like a pro, cast like a visionary! ⚡

HIGH HEAT ENDURANCE - Withstands temperatures up to 450°F, ideal for demanding casting projects.
RAPID TURNAROUND TIME - Demold your masterpiece in just 30 minutes—speed up your creative workflow.
DURABLE TEAR RESISTANT - Soft yet strong silicone rubber that withstands repeated use without cracking or shrinking.
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.

Smooth-On Mould Star 20T is a translucent platinum-cure silicone rubber with a 1:1 volume mix ratio, offering fast 30-minute demold times and heat resistance up to 450°F. Its low viscosity and tear-resistant properties make it ideal for durable, high-quality molds compatible with a wide range of casting materials, perfect for professionals seeking reliable, efficient mold-making solutions.

Specifications

ASIN	B00LU4YFK6
Brand Name	Smooth-On
Color	Multicolor
Customer Reviews	4.6 4.6 out of 5 stars (714)
Item Dimensions	15 x 14.7 x 8.1 centimeters
Item Weight	2.4 Pounds
Manufacturer	Smooth-On Inc
Manufacturer Part Number	3573423
Material Type	Silicone Rubber Metal
Model Number	3573423
Number of Items	1
Number of Packs	1
Number of Pieces	1
Shape	Star
UPC	751635587410
Unit Count	1.0 Count

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