Many types of plastics can be injection molded. Use the chart below to help decide which thermoplastic is best suited for your injection molding application.
Material Selection
Material
Colors
Stiffness
Dimensional tolerance
Intricate design
Dark colors
Max wall thickness, mm
ABS
Many
High
Good
Good
Fair
5
Nylon
Many
High
Good
Fair
Fair
4
Delrin
Usually white
Med
Good
Good
Good
4
Polyethylene
Many
Low
Poor
Good
Good
4
Polypropylene
Many
Low
Fair
Good
Good
2
Polystyrene
Many (translucent, opaque, transparent, tinted)
Low
Good
Good
Good
5
Polycarbonate
Many (translucent, opaque, transparent, tinted)
Med
Good
Good
Fair
4
PVC
Usually white
"Quite easy to use. Within only about 10 minutes I had it downloaded, installed, and had designed and priced a brass cog with 32 teeth, 1 inch in diameter and 1/4 inch thick. The quote was immediate."
