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

🎨Ideal for art & prototype molds

⚖️1:1 mix ratio by volume

AR$203850

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Description

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

FAST RELIABLE CURING - Fully cures in just 6 hours, so your creative projects keep pace with your ambition.
EFFORTLESS PRECISION MIXING - Perfect 1:1 volume ratio means no scale needed—mix and mold with zero hassle.
NO VACUUM DEGASSING REQUIRED - Skip the extra equipment and still get bubble-free molds—simplicity meets performance.
BEGINNER FRIENDLY MOLD MAKING - Designed for novices with easy-to-use tin cure silicone—start crafting professional-quality molds today.
VERSATILE CASTING COMPATIBILITY - Works seamlessly with plaster, resins, wax, and more—expand your artistic and industrial horizons.

Smooth-On OOMOO™ 30 is a low-viscosity, tin cure silicone rubber designed for easy mold making with a simple 1:1 mix ratio by volume. It cures fully in 6 hours without the need for vacuum degassing, making it ideal for novice mold makers creating one to two-piece molds for art, sculpture, and prototype reproduction. Compatible with plaster, resins, and wax, this lavender-hued silicone offers reliable performance for both artistic and industrial applications.

Specifications

ASIN	B004BNF3TK
Best Sellers Rank	#30,778 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #271 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 psi
UPC	751635821415
Unit Count	16 Ounce
Viscosity Level	Low
Volume	1200 ml
Water Resistance Level	Not Water Resistant

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AR$203850

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered 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 Argentina.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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