There are several important molding variations including:
Co-injection (sandwich) molding
Fusible (lost, soluble) core injection molding
Gas-assisted injection molding
In-mold decoration and in mold lamination
Injection-compression molding
Insert and outsert molding
Lamellar (microlayer) injection molding
Low-pressure injection molding
Microinjection molding
Microcellular molding
Multicomponent injection molding (overmolding)
Multiple live-feed injection molding
Powder injection molding
Push-Pull injection molding
Reaction injection molding
Resin transfer molding
Rheomolding
Structural foam injection molding
Structural reaction injection molding
Thin-wall molding
Vibration gas injection molding
Water assisted injection molding
Rubber injection
Injection molding of liquid silicone rubber