What are slipcasting molds, and what is the purpose of each mold?
Sure, lets break it down. We'll talk about 3 different mold types in this answer, Master molds, Rubber molds, and Production molds. The master mold is a plaster mold that is made from capturing the contours of a model so a-like product can be cast from it's negative space. Although you can cast from the master mold, we ideally want to preserve this mold so you can replace molds as they wear out. That's where the Mother mold comes in, or the rubber mold. The master mold is sealed to fabricate the rubber mold, and the rubber mold captures the positive area of the master mold, or the details of each master mold part. The rubber mold expedites the mold making process through enabling you to produce working molds at a lower cost and scale production at a faster pace. The plaster molds formed from the rubber mold are called working molds, or production molds. They are identical to the master mold and are the molds used to slipcast your form.