No. Smooth On does however make a food safe silicone called Smooth -Sil 940

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Smooth-On Mold Star 30 Silicone Mold Making Kit - Easy to Use & Long-Lasting Silicone Mold (2-Pound)

Smooth-On Mold Star 30 Silicone Mold Making Kit - Easy to Use & Long-Lasting Silicone Mold (2-Pound)

Q: whats the difference between oomo 30 and moldstar ?

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

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..

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

Product ID: 5665350

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Details

Material
Silicone
Color
Blue
Brand
Smooth-On
Item dimensions L x W x H
7.52 x 5.98 x
Shape
Star

⏳Low long-term shrinkage

⚙️Versatile casting compatibility

🛡️Tear-resistant durability

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

Description

🛠️ Mold your masterpiece with confidence—durability meets ease!

BUILT TO ENDURE - Craft tear-resistant silicone molds that withstand repeated use without fail.
EFFORTLESS CRAFTING - Easy-to-use platinum silicone mix designed for smooth, reliable curing.
PRECISION THAT LASTS - Experience ultra-low shrinkage for molds that stay true over time.
VERSATILITY UNLEASHED - Perfect for casting wax, gypsum, resins, and more—expand your creative toolkit.
MOLD LIBRARY ESSENTIAL - Create long-lasting molds that become the backbone of your professional projects.

Smooth-On Mold Star 30 is a 2-pound platinum silicone mold making kit that cures into soft, strong, and tear-resistant rubber with minimal shrinkage. Ideal for professional-grade molds used in casting wax, gypsum, resins, and other materials, it offers easy mixing and long-lasting durability, making it a must-have for any serious mold maker’s collection.

Have a Question? See What Others Asked

whats the difference between oomo 30 and moldstar ?

What color is this silicone? Can I use mica powders to color it

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..

Is this food safe?

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