Is this enough to make a full set of rpg dice molds in small cups?

I ran out after 6 of the 7 dice. I used 4 oz cups and was barely able to make the six molds. The molds did turn out great, though!

How well does this retain fine details?

It does a great job with details.

What is the shelf life for parts A and B unmixed?

Hey mOWWck, the shelf life is about 1 year (usually slightly longer than that) if you do not use them. This is an approximate number and based on our experiences in keeping the products in our store. You should, however, place the products in a low humidity area to keep them longer. Do note that unused silicone last longer than unused resins before the products start gradually losing their properties (such as hardness etc.) Hope this helps and have a great day ahead!!

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Smooth-On Mold Star 15 Slow - 1A:1B Mix by Volume Platinum Silicone Rubber - Pint Unit

Product ID: 305257027

Details

Brand
Smooth-On
Colour
Green
Item dimensions L x W x H
19.3 x 15 x
Material
Silicone
Shape
Custom

⏳50 min pot life

🔥450°F heat resistance

⚖️1:1 volume mix ratio

R2212

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Mold like a pro, cast like a visionary!

NO VACUUM NEEDED - Simplify your process with a mold mix that skips vacuum degassing without compromising quality.
TIME SMART WORKFLOW - Generous 50-minute pot life and quick 4-hour cure to keep your projects moving.
DURABLE TEAR RESISTANT - Soft yet strong silicone rubber built to withstand repeated use and tough casting materials.
EFFORTLESS PRECISION MIXING - No scales needed—just equal parts for flawless molds every time.
VERSATILE CASTING COMPATIBILITY - Perfect for wax, gypsum, resins, concrete, and even low-temp metal alloys.

Smooth-On Mold Star 15 Slow is a premium platinum silicone rubber kit designed for professional-grade mold making. Featuring a user-friendly 1:1 volume mix ratio, it cures into a soft, tear-resistant rubber with heat resistance up to 450°F. Ideal for casting a wide range of materials including wax, gypsum, resins, concrete, and low-temperature metal alloys, it offers a 50-minute pot life and a fast 4-hour cure time—perfect for efficient, high-quality production without the need for vacuum degassing.

Specifications

ASIN	B00ATDV5BQ
Brand Name	Smooth-On
Color	Green
Customer Reviews	4.7 4.7 out of 5 stars (2,121)
Item Dimensions	19.3 x 15 x 7.9 centimeters
Manufacturer	Smooth-On, Inc.
Manufacturer Part Number	75163529244
Material Type	Silicone
Model Number	SOMoldStar15kit
Number of Items	1
Number of Pieces	1
Shape	Custom
UPC	751635292413
Unit Count	1 Count

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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.

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R2212

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Best international shipping I've ever tried. Worth every penny!

3 days ago

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Customer service was outstanding when I had questions about the product.

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