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

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 your masterpiece with confidence and ease!

BUILT TO LAST - Tear-resistant rubber ensures your molds survive countless projects without wear.
TRUSTED QUALITY - Join thousands of creators with a 4.6-star rated, top-ranked molding essential.
PRECISION PERFECT - Experience ultra-low shrinkage for molds that maintain exact detail over time.
VERSATILE CASTING - Ideal for wax, gypsum, resins, and more—expand your creative horizons seamlessly.
EFFORTLESS CRAFTING - User-friendly platinum silicone mix means no-fuss mold making, even for busy pros.

Smooth-On Mold Star 30 is a 2-pound platinum silicone mold making kit designed for professionals seeking durable, tear-resistant molds with minimal shrinkage. Perfect for casting a variety of materials including wax, gypsum, and resins, it offers an easy-to-use formula that delivers consistent, high-quality results favored by thousands of artists and makers.

Specifications

ASIN	B00ETAY8RI
Best Sellers Rank	#14,878 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #141 in Sculpture Molding & Casting Products
Brand Name	Smooth-On
Color	Blue
Customer Reviews	4.6 4.6 out of 5 stars (746)
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 Pieces	1
Shape	Star
UPC	751635227415
Unit Count	1 Count
Warranty Description	No Warranty

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€ 89.12

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In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Italy.

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TrustScore 4.5 | 7,300+ reviews

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