I want to make several resin casts using a featureless spherical silicon mold. The mold only has a diameter of 6 cm (think paperweight or billiard ball with a tabletop miniature sealed inside), but I'm looking to make 30+ of them. So I'm going to need quite a lot of resin.
Are there any chemicals that are more affordable than the resin itself that I can use to dilute it so that it will go further?
I understand that this would effect things like drying time, but that is not necessarily an issue.
I ask as I often dilute other substances that are typically used undiluted, and it's usually the case that the substances are sold in a format that's most convenient for off-the-shelf use, rather than because it's the only way to use them.