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: 255550750

Details

Brand
Smooth-On
Item form
Liquid
Material
rubber
Special features
Easy-to-use
Specific uses for product
Art

⏳30 min pot life

💧Low viscosity for easy pouring

🧪1:1 mix ratio, no scale needed

€ 133.02

Duties & taxes included

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Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎨 Mold your masterpiece with zero stress and total finesse!

POUR LIKE A PRO - Ultra-low viscosity ensures smooth mixing and pouring, capturing every intricate detail flawlessly.
ROOM TEMP READY - Cures at room temperature with negligible shrinkage—no fancy equipment required.
BEGINNER FRIENDLY - Designed for novice mold makers to create simple, high-quality molds with ease and confidence.
TIME SMART CURING - 30-minute pot life with a 6-hour full cure lets you plan your creative flow without rush.
EFFORTLESS PRECISION - One-to-one volume mix ratio means no scales, no hassle—just perfect molds every time.

Smooth-On OOMOO™ 30 is a lavender tin-cure silicone rubber mold-making kit designed for beginners and professionals alike. Featuring a convenient 1:1 by volume mix ratio, low viscosity for easy pouring, and a 30-minute pot life with a 6-hour cure time, it enables precise, detailed mold creation at room temperature with minimal shrinkage. Ideal for art, sculpture, and prototype reproduction, this easy-to-use silicone delivers reliable results without vacuum degassing or complex tools.

Specifications

ASIN	B004BNF3TK
Brand Name	Smooth-On
Color	Purple
Compatible Material	Rubber
Container Type	Can
Customer Reviews	4.2 4.2 out of 5 stars (3,593)
Full Cure Time	6 Hours
Global Trade Identification Number	00751635821415
Item Form	Liquid
Item Package Quantity	1
Item Weight	1.3 kg
Manufacturer	Smooth-on
Material Type	rubber
Model	OOMOO 30
Number of Pieces	1
Other Special Features of the Product	Easy-to-use
Part Number	OOMOO 30
Specific Uses For Product	Art
Tensile Strength	240 Pounds Per Square Inch
UPC	751635821415
Unit Count	16 Ounce
Viscosity Level	Low
Volume	1200 Milliliters
Water Resistance Level	Not Water Resistant

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