- Mold - a negative of the object to be cast
- Cast - a positive of the object copied
- Undercut - a shape the mold must support that is not directly accessible from "the top"
- Draft - sloped shape that makes it easier to remove objects from ridge molds
- Dimensional accuracy - distortion of the orginal objects size or shape.
- Draft Angle - a method that gives one part molds a way to release.
- Two part mold - A mold done in two parts for reasons of undercut, draft, cost savings or other technical consderations
- One part mold - A mold that has one open faced
- Mold Release - a chemical that can prevent bonding of materials.
- Cure Inhibition - Incompatible chemical that slows or stops thermoset / vulcanization process leaving a gum mess
- Catalyst - increases in the rate of thermoset, material that causes vulcanization of a monomer (resin).
- Vulcanize - The process of liquid to solid transition of resins.
- Thermoset - https://en.wikipedia.org/wiki/Thermosetting_polymer
- Thermoform - https://en.wikipedia.org/wiki/Thermoforming
- Pot life - time between mixing and pour finishing
- Shelf life - Thermoset material storage time
- Library Life - how long / how many castings the mold is good for
- Durometer - A measure of flexiblity
- Degass - a pressure vessel used pull bubbles out of solution
- Mold Key - A method of registration in a multi-part mold.
- Sprue - A route to cast materials into the mold. www.en.wikipedia.org/wiki/Sprue_(manufacturing)
- Mold Vent - A route for air to escape a mold when casting.
- Parting Line - a path around a part in a multi-part mold that hides the mold sepration seam by leaving little or no undercut.
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