The method was developed by William Britain in 1893 for the production of lead toy soldiers. It uses less material than solid casting, and results in a lighter and less expensive product. Hollow cast figures generally have a small hole where the excess liquid was poured out.[citation needed]
Similarly, a process called slush molding is used in automotive dashboard manufacture, for soft-panel interiors with artificial leather, where a free-flowing (which behave like a liquid) powder plastic compound; either PVC or TPU, is poured into a hot, hollow mold and a viscous skin forms; excess slush is then drained off, the mold is cooled, and the molded product is stripped out.
Low-pressure