Uncured rubber "pre-forms" are manually placed inside each mold cavity. As the mold closes, rubber is forced into the shape of the mold cavity. Temperature and pressure cure rubber to desired physical properties.

Advantages:
	Low tooling cost
	Multiple cavities from one to several hundred depending on volume
Volume:
	Low to medium
Materials:
	Silicone, EPDM, Nitrile, Neoprene, Viton®, FKM, Natural Rubber & Urethane
Applications:
	Grommets, gaskets, spacers, packing cups, fabric reinforced diaphragms
	(Often used to develop prototypes)