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ACRYREX® CM-205

Technical Datasheet | Supplied by Chi Mei

ACRYREX® CM-205 by Chi Mei is a high viscosity polymethylmethacrylate (PMMA) grade. Exhibits heat resistance, high temperature resistance, heat distortion temperature up to 100°C and tough mechanical strength.

Possesses good cleanliness, high transparency and gloss, stable physical, chemical, optical and electrical properties.
Designed for injection molding and extrusion plates, rods and tubes applications.
ACRYREX® CM-205 is especially suitable for external automotive light casings, sunglasses and digital watch casings.
Complies with PFOA, PFOS, RoHS, UL 94 HB flame rating and SVHC.

ACRYREX® CM-205 Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Density

1.19 g/cm³

(At 23°C)

ISO 1183

Linear Mold Shrinkage

0.2 - 0.6 %

ISO 294-4

Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)

1.9 ml/10 min

(At 230°C × 3.8 kg)

ISO 1133

Injection Molding Properties

Value & Unit

Test Condition

Test Method

Pre-drying Temperature

85 - 95 °C

Mold Temperature

50 - 70 °C

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ACRYREX® CM-205

ACRYREX® CM-205 Properties

Physical Properties

ACRYREX® CM-205 Processing Guidelines

Injection Molding Properties