Chi Mei - Taiwan PMMA

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PMMA

Name

CM-205

Properties

Test Method (ASTM)

Condition

unit

General

Melt Index

D1238

230°C, 3.8 Kg

g/10min

1.8

Mass Density

D792

23°C

-

1.19

Bulk Density

D1182

-

gr/cm^3

0.7

Water Absorption

D570

23°C, Water, 24h

%

0.3

Molding Shrinkage(1/8')

D955

-

%

0.2~0.6

Hardness

D785

M-scale

-

95

Refractive Index

D542

-

-

1.491

Light Transmission

D1003

-

%

92

Tensile Strength (Break)

D638

6mm/min

Kg/cm^2

750

lb/in^2

10600

Tensile Elongation

D638

6mm/min

%

10

Flexural Strength

D790

2.8mm/min

Kg/cm^2

1200

lb/in^2

17000

Izod Impact Strength

D256

6.4mm, 23°C

Kg.cm/cm

2

ft.lb/in

0.37

Flammability

UL94

1.5 mm

-

HB

Heat Deflection Temperature

D648

Unannealled

°F

216

°C

102

Vicat Softening Temperature

D1525

1 Kg, 50°C/hr

°F

239

°C

115