How large of a mold will this usually make? One large one? a few small ones? or is there a specified size reccommended?

I molded an object with a volume of 37 ounces but it took a set and 1/4 of another set of these bottles. Safe bet that if you have a model with a displacement greater than the one I did, you need two sets. Some find the simplest way is to pour rice around your model then pour the rice into measuring cups to get a better idea of how much. The hollow mold that I made was about 11.5 inches high and 4 inches in diameter with a width of 1 inch on the sides and bottom of the mold. So.. to encapsulate a volume of 37 ounces with enough material so that the mold was free standing it was a set and 1/4 of silicone at the least. My mold did not have a top though, with a top, it would have been a set and a half, no question about it.

is this heat resistant?

Not positive but aren't all silicones heat resistant. Great product.

How many ounces is each bottle?

It is sold and labeled in Lbs.Part A is 1.2lbs and Part B is 1.6lbs and I can't find any label that provides info regarding ounces. The dimensions are almost the same size as a 16 oz bottle so it's close to 16oz per bottle but that it an estimate. Sorry I can't provide more info.

Is it enough liquid to make a 12" vinyl record mold?

One would probably be enough, but it would be a thin coat. If you want the mold to be more durable, might go for a second just to hold the shape better.

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Smooth-On OOMOO™ 30 Tin Cure Silicone Rubber, Easy to Use Silicone Mold Making Kit, Pint Unit

Smooth-On OOMOO™ 30 Tin Cure Silicone Rubber, Easy to Use Silicone Mold Making Kit, Pint Unit

Product ID: 1792912

Details

Brand
Smooth-On
Item Form
Liquid
Material
Silicone
Special Feature
Easy-to-use
Specific Uses For Product

⏳6-hour full cure time

⚖️1:1 mix ratio by volume

🖌️Low viscosity for easy pouring

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Description

🎨 Mold your masterpiece faster—because your creativity can’t wait!

FAST TURNAROUND - Fully cures in just 6 hours, so your projects keep pace with your ideas.
SMOOTH DEMOLDING - Pair with Ease Release 200 for flawless, stress-free mold removal every time.
BEGINNER FRIENDLY - Ideal for novice mold makers with easy handling and no vacuum degassing required.
VERSATILE CASTING - Compatible with plaster, resins, wax, and more—expand your creative horizons.
EFFORTLESS MOLD MAKING - Simple 1:1 mix ratio means no scale needed—perfect for busy creatives.

Smooth-On OOMOO™ 30 is a lavender-tinted, tin cure silicone rubber designed for easy, beginner-friendly mold making. With a simple 1:1 mix ratio and a quick 6-hour cure time, it’s perfect for art projects and industrial prototypes alike. Its low viscosity ensures smooth pouring, while compatibility with plaster, resins, and wax broadens your casting options. Ideal for one to two-piece block molds, this kit requires no vacuum degassing and supports hassle-free demolding when used with Ease Release 200.

Specifications

ASIN	B004BNF3TK
Best Sellers Rank	#42,309 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #376 in Sculpture Molding & Casting Products
Brand Name	Smooth-On
Color	['Lavender']
Compatible Material	Rubber
Container Type	Can
Customer Reviews	4.3 4.3 out of 5 stars (3,763)
Full Cure Time	6 Hours
Global Trade Identification Number	00751635821415
Item Form	Liquid
Item Package Quantity	1
Item Weight	2.9 Pounds
Manufacturer	Smooth-On, Inc.
Material Type	Silicone
Model	OOMOO 30
Number of Pieces	1
Other Special Features of the Product	Easy-to-use
Part Number	OOMOO 30
Specific Uses For Product	Interior/Exterior
Tensile Strength	240 Pounds Per Square Inch
UPC	751635821415
Unit Count	16.0 Ounce
Viscosity Level	Low
Volume	1200 Milliliters
Water Resistance Level	Not Water Resistant

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S$106

Duties & taxes included

In stock

Sold byAmazon SINGAPOREDelivered 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 SINGAPORE.

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TrustScore 4.5 | 7,300+ reviews

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