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.

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.

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

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) | Long-Lasting Silicone Mold

Product ID: 5665350

Details

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

⏳Low long-term shrinkage

⚙️Easy platinum silicone mix

🛡️Tear-resistant durability

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Description

🛠️ Mold like a pro, last like a legend!

BUILT TO LAST - Tear-resistant rubber ensures your molds survive countless casts
TRUSTED CHOICE - Top-rated by pros with 4.6 stars and a strong reputation in molding
EFFORTLESS MIXING - User-friendly platinum silicone formula saves time and hassle
PRECISION PERFECT - Ultra-low shrinkage keeps every detail sharp and true
VERSATILE CASTING - Compatible with wax, gypsum, resins, and more for creative freedom

Smooth-On Mold Star 30 is a premium 2-pound platinum silicone mold kit designed for professional-grade, tear-resistant molds with minimal shrinkage. Ideal for casting a variety of materials, it offers easy mixing and long-lasting durability, making it a top choice for artists and makers seeking precision and reliability.

Specifications

ASIN	B00ETAY8RI
Best Sellers Rank	#14,475 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #126 in Sculpture Molding & Casting Products
Brand Name	Smooth-On
Color	Blue
Customer Reviews	4.6 4.6 out of 5 stars (747)
Item Dimensions	7.52 x 5.98 x 2.99 inches
Item Weight	2.5 pounds
Manufacturer	Smooth-On, Inc.
Manufacturer Part Number	moldstar30
Material Type	Silicone
Model Number	COMINHKR067156
Number of Items	1
Number of Pieces	1
Shape	Star
UPC	751635227415
Unit Count	1 Count
Warranty Description	No Warranty

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€ 96.43

Duties & taxes included

In stock

Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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