Mold Star® Series

Mold Star® Series

Easy to Use Silicone Mold Rubber

Mold Star® Series

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.

Technical Information & More

HIGHLIGHTS

One to One Mix Ratio

One to One Mix Ratio

One to One Mix Ratio

Mold Star® rubbers are mixed 1A:1B by volume (no weighing scale necessary) for precise measurements even at a very low mass and cure at room temperature with negligible shrinkage.

No Scale Necessary No Scale Necessary
One to One Mix Ratio One to One Mix Ratio

No Vacuum Degassing

No Vacuum Degassing

No Vacuum Degassing

Mold Star® silicones feature relatively low viscosities making vacuum degassing optional and is not required for most applications. A uniform flow will help minimize entrapped air.

Low Viscosity Low Viscosity
No Vacuum Degassing No Vacuum Degassing

Translucent Option

Make Fast Cut Molds or Castings

Translucent Option

Translucent Option

Make Fast Cut Molds or Castings

Mold Star® 20T is a translucent silicone for making fast molds or casting into alginate molds. Mold Star® 20T cures in 30 minutes at room temperature and it offers an infinite number of color effects achieved by adding Silc Pig® silicone pigments or Cast Magic® effects powders.

Easy to Color Easy to Color
Fast Cure Time Fast Cure Time

Make Molds Fast

Make Molds Fast

Make Molds Fast

Mold Star® 16 is available in a 400ml cartridge and is one of the fastest ways to make a silicone mold. With a 6 minute pot life and 30 minute cure time It can even be used in forensics to capture evidence impressions in the field.

Fast Cure Time Fast Cure Time

Technical and Buying Information

Select a Product Below Hardness Pot Life Cure Time Color
 Mold Star® 15 SLOW 15 A 50 mins 4 hrs Green
 Mold Star® 16 FAST 16 A 6 mins 30 mins Blue-Green
 Mold Star® 30 30 A 45 mins 6 hrs Blue
 Mold Star® 20T 20 A 6 mins 30 mins Translucent

VIDEOS and GALLERIES

Step-by-Step How-To Articles

video

Mold Making Tutorial - Christmas Tree Candle

Mold Making Tutorial - Christmas Tree Candle

In this video, Jeff demonstrates how to make a silicone mold for making candles and scented wax tarts.

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How To Make a 1-Piece Silicone Cut Mold

How To Make a 1-Piece Silicone Cut Mold

Mold Star® 15 is perfect for experienced mold makers or people just starting out.

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video

Making Finger Corals Using Smooth Cast® Plastic

Making Finger Corals Using Smooth Cast® Plastic

You can create perfect copies of any piece of original coral using mold rubber and liquid plastic.

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video

Making a Taxidermy Base Using Free Form® Air Epoxy Putty

Making a Taxidermy Base Using Free Form® Air Epoxy Putty

How to create a taxidermy habitat base using Mold Star® 16 silicone and Free Form® Air

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video

How to Make a Custom Concrete Fountain

How to Make a Custom Concrete Fountain

Learn how to make a concrete fountain that looks just like sand using Mold Star® 16 silicone rubber.

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video

How to Make a Silicone Mold of 3D Print

How to Make a Silicone Mold of 3D Print

This video demonstrates how to use Mold Star 20T to make a silicone mold of extruded PLA.

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video

Casting a Crystal Clear® Shell in a Mold Star® 15 Mold

Casting a Crystal Clear® Shell in a Mold Star® 15 Mold

This sequence demonstrates making a two piece silicone mold using Mold Star® 15 silicone rubber and Crystal Clear® 200

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video

Creating a Silicone Rubber Texture Mat for GFRC Panels

Creating a Silicone Rubber Texture Mat for GFRC Panels

Granary wall inside the barn features woodgrain textures that can be duplicated onto GFRC panels for a shower install.

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Tripel X Professional Props Uses TASK® 16 to Make Props that are Absolutely Indestructible

Tripel X Professional Props Uses TASK® 16 to Make Props that are Absolutely Indestructible

Tripel X Theming and Props is well known for providing hyper-realistic weapons props for several popular detective shows filmed in New York and Los Angeles.

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video

Making a 2 Part Mold Using Mold Star® 15 Silicone

Making a 2 Part Mold Using Mold Star® 15 Silicone

This video outlines the 2-part block mold making technique using silicone rubber.

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video

Making a Mold Star 16 Forensics Impression Mold

Making a Mold Star 16 Forensics Impression Mold

This mold making tutorial video demonstrates how Mold Star 16 FAST silicone can be used to take forensic impression evidence.

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video

Two Piece Silicone Mold of a Knife

Two Piece Silicone Mold of a Knife

We demonstrate using Mold Star 30 silicone, a platinum silicone for mold making...

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video

Making a Simple Block Mold Using Mold Star® 15 Silicone

Making a Simple Block Mold Using Mold Star® 15 Silicone

Mold Star® 15 is an easy to use Shore 15A platinum silicone that is mixed 1A:1B by volume.

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video

Casting GFRC Concrete to Create Textured Shower Panels

Casting GFRC Concrete to Create Textured Shower Panels

Multiple GFRC panels of different sizes and shapes will be made from this single texture mat mold.

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video

Making a Concrete Sink - From Design To Production

Making a Concrete Sink - From Design To Production

A team of fabrication talent came together to create unique concrete décor elements with an aquatic theme. Custom designed concrete sinks, concrete showers ...

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What Have Other People Done With These Products?

Smooth-On Silicones Pass High Temp Challenge For Wax Casting

Smooth-On Silicones Pass High Temp Challenge For Wax Casting

Nature's Best experimented and decided to change to Smooth-On platinum silicone rubbers.

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RepRap 3D Printer Parts Made with Smooth-Cast® ONYX®

RepRap 3D Printer Parts Made with Smooth-Cast® ONYX®

3D printer parts made with Smooth-Cast ONYX and Mold Star 15 molds.

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