Resin Library

PMMA (Acrylic)

EngineeringAmorphousHygroscopicity ModerateField Estimate

Drying Conditions

Temperature
80°C
Time
3-4h
Target Moisture
N/A

A dehumidifying dryer is recommended (relatively hygroscopic).

Melt Temperature

220~260°C

Mold Temperature

60~90°C

Shrinkage

0.3~0.6%

Common Defects & First Checks

Silver Streak

PMMA(acrylic): transparent.

View Guide

Field Notes

PMMA(acrylic): transparent. Optical clarity needs careful drying & clean processing. Moisture → silver streak. Beyond 9-type: crazing, bubbles, haze. Dehumidifying dryer up to 98°C, 2-3h. Mold below 60°C risks surface stress on optical faces.

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This data is a field-reference summary. Always verify against the resin manufacturer’s official TDS.