polyester resin
properties: tough, waterproof
uses: anatomical models, hull of a boat
epoxy resin
uses: adhesives, catalyst
properties: good strength to weight ratio
acrylic
uses: medical devices
properties: brittle, thin
polystyrene
uses: protective packaging
properties: flexible, lightweight, impact resistant
polypropylene
uses: films, fibres
properties: low density, ductile
polyvinyl chloride (PVC)
uses: packaging, pipes
properties: rigid, easily extruded
polyethylene types
PETE, LDPE, HDPE
PETE
bottles, lightweight, easily moulded
HDPE
bins, lightweight, stiff
LDPE
bin bags, flexible, tough, easily extruded