Question regarding expanding foams

Asking anyone who is familiar with casting with expanding foam!

What type of foam is generally used for casting? Is it the FOAM-iT line?

If so, can that be cast into molds made from Rebound 25/40?

If anyone has experience casting pieces smaller than a fursuit head - for instance, something close to taxidermy size - have you been satisfied with the level of detail?

Thanks for any info you can share!