Process	Reaction injection moulding - RIM
	Similar to injection moulding except that normally thermosetting plastics are used. Often foamed parts with solid skin are produced. Two or more kinds of fluid plastics are mixed, often without being heated, and then injected into a mould where the mixture solidifies. Stiffness of the parts produced can be increased using different kinds of fibre reinforcement.
Danish Name	Reaktionsstøbning
Category	Mass conserving processes, Shaping plastics
Materials	PUR plastic Other types of two-component thermosetting plastics
Typical products	Automobile bumper Panton chair Mil-Tek High Pressure Cleaner Shoe soles Genoa stacking chair
Competing processes	Injection moulding
References	Aarslev Polymerindustri A/S Tinby A/S
Price notes	Moulding costs are relatively low (10,000-50,000 DKK) but cycle time moderate (5 min. and up).
Price date	1997
Additional info	Moulding tools can be cast in aluminium based on low-cost plaster/silicon models. Tension within foamed parts is fairly low.
Photo	Thomas Nissen (Computer graphics)
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