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

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Mold Star 30 Silicone Mold Making Rubber - Trial Unit by Smooth

Mold Star 30 Silicone Mold Making Rubber - Trial Unit by Smooth

Product ID: 725334922

Details

Brand
Smooth-On
Color
blue
Item dimensions L x W x H
19.1 x 15.2 x
Material
Silicone
Shape
Star

⏳45 min pot life

🔥Heat resistant 450°F

⚖️1:1 volume mix ratio

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

$U8203

Duties & taxes included

In stock

Sold byAmazon UruguayDelivered 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 Uruguay.

Secure transaction

Description

🔥 Mold like a pro, cast like a visionary!

OPTIMAL WORK WINDOW - Generous 45-minute pot life lets you craft without rush or waste.
LONG LASTING DURABILITY - Tear-resistant, low shrinkage silicone that keeps your molds library fresh and reliable.
EFFORTLESS PRECISION MIXING - No scale needed with perfect 1:1 volume ratio for flawless molds every time.
VERSATILE CASTING COMPATIBILITY - Ideal for wax, plaster, resin, concrete, and even low-temp metal alloys up to 450°F.
PROFESSIONAL GRADE DETAIL CAPTURE - Low viscosity formula captures intricate details with ease—your projects deserve the best.

Mold Star 30 is a platinum-cured silicone rubber with shore 30A hardness, offering a 45-minute pot life and 6-hour cure time. Its 1:1 volume mix ratio eliminates measuring guesswork, while its heat resistance up to 450°F makes it perfect for diverse casting materials including wax, plaster, resin, concrete, and low-temp metal alloys. Tear-resistant and low shrinkage, it delivers professional-grade molds with exceptional detail fidelity.

Specifications

ASIN	B00ETAY8RI
Amazon Bestseller	#613,162 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #895 in Candy Making Supplies #3,236 in Hobby Building Tools & Hardware
Brand Name	Smooth-On
Color	blue
Customer Reviews	4.6 4.6 out of 5 stars (698)
Item Dimensions	19.1 x 15.2 x 7.6 cm
Item Weight	0.59 Kilograms
Manufacturer	Smooth-On, Inc.
Manufacturer Part Number	moldstar30
Material Type	Silicone
Model Number	COMINHKR067156
Number of Pieces	1
Shape	Star
UPC	751635227415

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.