Calculate according to the mold container's Length, Width and Height, if you are not sure about, please take a picture of the project and mark the measurements, we can do calculation for you;

Silicone don't differ as shiny and matt, if the project surface is shiny, then the finished silicone will be shiny, if the project surface is not shiny, then the silicone won't be shiny either. Silicone is just copying exactly what it contacted with;

Yes, you can use the finished silicone products in Oven, the max temperature it can withstand is 230C/446F;

And also can be used in Freezer;

It will mostly depends on the size of project you want to make, the bigger size is, the higher hardness should be; in some cases, the shape of the project also affect, highly recommend to use our Super Elastic silicone for tall or irregular shape;

First make sure measuring silicone part A and B exactly by 1A:1B, either by weight or by volume; And mix the silicone for at least 2 minutes; Please read BBDINO Silicone mold making user manual carefully before use.