surface roughness

Surface Ra of different plastic
molding material Ra   index arrange μm
0.012 0.025 0.05 0.1 0.2 0.4 0.8 1.6 3.2 6.3 12.5 25
inject Thermoplastics PMMA 0.025 0.05 0.1 0.2 0.4 0.8 1.6
ABS 0.025 0.05 0.1 0.2 0.4 0.8 1.6
AS 0.025 0.05 0.1 0.2 0.4 0.8 1.6
PC 0.05 0.1 0.2 0.4 0.8 1.6
PS 0.05 0.1 0.2 0.4 0.8 1.6 3.2
PP 0.1 0.2 0.4 0.8 1.6
PA 0.1 0.2 0.4 0.8 1.6
PE 0.1 0.2 0.4 0.8 1.6 3.2 6.3
POM 0.05 0.1 0.2 0.4 0.8 1.6 3.2
PSU 0.2 0.4 0.8 1.6 3.2
PVC 0.2 0.4 0.8 1.6 3.2
PPO 0.2 0.4 0.8 1.6 3.2
Chlorinated polyether 0.2 0.4 0.8 1.6 3.2
PBT 0.2 0.4 0.8 1.6 3.2
Thermosetting Aminoplasts 0.2 0.4 0.8 1.6 3.2
phenolics 0.2 0.4 0.8 1.6 3.2
Silicone plastic 0.2 0.4 0.8 1.6 3.2
press Aminoplasts 0.2 0.4 0.8 1.6 3.2
phenolics 0.2 0.4 0.8 1.6 3.2
Melamine 0.1 0.2 0.4 0.8
Silicone plastic 0.2 0.4 0.8
DAP 0.4 0.8 1.6 3.2
Unsaturated polyester 0.4 0.8 1.6 3.2
Epoxy plastic 0.2 0.4 0.8 1.6 3.2
Plexiglass 0.025 0.05 0.1 0.2 0.4 0.8 1.6 3.2 6.3
PA 1.6 3.2 6.3 12.5
PTFE 0.8 1.6 3.2 6.3 12.5
PVC 1.6 3.2 6.3 12.5
Reinforced plastics 1.6 3.2 6.3 12.5 25
surface roughness

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