What is Vacuum Casting?
Vacuum casting uses an SLA (or machined) master and silicone tooling to produce polyurethane castings. The master is finished to achieve the desired surface texture and gloss level. Silicone is poured around the master and, once set, it is split to remove the master. A two-part polyurethane resin (many plastic and rubber simulants are also available) is then poured under vacuum into the cavity, producing a casting.
