Recommended Wall Thickness by Resin Type

Resin Inches
ABS 0.045 - 0.140
Acetal 0.030 - 0.120
Acrylic 0.025 - 0.500
Liquid crystal polymer 0.030 - 0.120
Long-fiber reinforced plastics 0.075 - 1.000
Nylon 0.030 - 0.115
Polycarbonate 0.040 - 0.150
Polyester 0.025 - 0.125
Polyethylene 0.030 - 0.200
Polyphenylene sulfide 0.020 - 0.180
Polypropylene 0.025 - 0.150
Polystyrene 0.035 - 0.150
Polyurethane 0.080 - 0.750
The table* shows wall thicknesses that Protomold recommends according to resin. Please note that thin walls only work on small parts and thicker walls are required where the resin has a long way to flow. Protomold makes parts with dimensions of about 0.25 in. to 15 in. (6.3 mm. to 381 mm.) or more.

*Adapted from www.manufacturingcenter.com.