How much would i need to cast a mold of a round item 2.5 inches in diameter and about 3/4 of an inch thick?

The best thing I can tell you is this. Place the item in a suitable container that you can make a mold with. Add water to give you the volume you need as if you were making the mold. Pour the water into the same type of measuring container you would use to measure the compound with. Jot down the amount, or mark it on your container. That should give you an approximate amount of mold maker you should use. Always make a small amount extra, just in case.

Can this product be used to make wedding bands?

For small items like rings and other jewelry, always get 30A silicone for the mold, you could also do 20A just dont make the mold too thin. . This is 15A I believe.

Can these molds be used in an oven? I assume the silicone is not food grade but I'm thinking of using those with oven bake clay

I use my torch on them that is the only heat I've used on my molds.

Is this tin-cure or platinum cure silicone?

Most 1:1 silicone mixes are platinum cure, although I don't know with certainty with this product. I have successfully applied heat to accelerate curing (works only with platinum cure); moisture had no effect (works only with tin cure). So this is *probably* platinum cure.

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Silicone Mold Making Kit - Liquid Silicone Rubber 15A Platinum Silicone - Translucent - 7 oz

Product ID: 255588149

Details

Brand
Miraclekoo
Colour
Clear
Item dimensions L x W x H
12.5 x 8 x 4
Material
Platinum
Shape
custom

⏳4-6 hrs room temp cure

💨self-debubbling tech

⚖️1:1 mix ratio precision

Description

🛠️ Mold your masterpiece with zero hassle and total pro vibes!

BUBBLE FREE PERFECTION - Innovative self-debubbling formula means no vacuum degassing needed—smooth molds guaranteed.
FAST ROOM TEMP CURING - Get your molds ready in just 4-6 hours without any special heating tools.
VERSATILE CREATIVE FREEDOM - Craft resin, wax, candle, soap, and more with one all-in-one premium silicone kit.
EFFORTLESS PRECISION MIXING - Perfect 1:1 weight ratio for flawless mold consistency every time.
SAFE ODORLESS FLEXIBILITY - Non-toxic, translucent silicone that’s soft, flexible, and ideal for professional-grade resin casting.

The Miraclekoo Silicone Mold Making Kit offers a translucent, non-toxic platinum silicone rubber with a precise 1:1 mixing ratio. It cures at room temperature within 4-6 hours and features a self-debubbling formula that eliminates the need for vacuum degassing. Ideal for resin, wax, candle, and soap molds, this flexible and odorless silicone empowers creators to produce professional-quality molds effortlessly.

Specifications

ASIN	B07XKBJWKH
Best Sellers Rank	3,807,517 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 13,460 in Sculpting Moulding & Casting
Brand Name	Miraclekoo
Colour	Clear
Customer Reviews	4.4 4.4 out of 5 stars (1,715)
Item Dimensions	12.5 x 8 x 4 centimetres
Item Shape	custom
Item Type Name	Liquid Silicone Rubber
Manufacturer	Miraclekoo
Manufacturer Part Number	MCSRSMMKLMM
Material Type	Platinum silicone
Model Number	MCSRSMMKLMM
Number of Items	1
Number of Pieces	1
Unit Count	1.0 count

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