Properties

Acrylic
(PMMA)

Polycarbonate
(PC)

Polystyrene
(PS)

Cyclic Olefin Copolymer

Cyclic Olefin Polymer

Polyetherimide
1010 (PEI)

1.497
1.491
1.489

1.599
1.585
1.579

1.604
1.590
1.584

1.540
1.530
1.526

1.537
1.530
1.527

1.689
1.682
1.653

Abbe Value

57.2

34.0

30.8

58.0

55.8

18.94

Transmission %
Visible Spectrum
3.174mm thickness

92

85-91

87-92

92

92

36-82

Deflection Temp

3.6° F/min @66psi

3.6° F/min @264psi

214° F/
101° C

198° F/
92° C

295° F/
146° C

288° F/
142° C

230° F/
110°C

180°F/
82°C

266°F/
130°C

263°F/
123°C

266°F/
130°C

263°F/
123°C

410°F/
210°C

394°F/
201°C

Max Continuous Service

Temperature

198°F

92°C

255°F

124°C

180°F

82°C

266°F

130°C

266°F

130°C

338°F

170°C

Water Absorption % (in water, 73°F for 24 hrs.)

0.3

0.15

0.2

<0.01

<0.01

0.25

Specific Gravity

1.19

1.20

1.06

1.03

1.01

1.27

Hardness

M97

M70

M90

M89

M89

M109

Haze (%)

1 to 2

1 to 2

2 to 3

1 to 2

1 to 2

-

Coeff of Linear Exp CM X10^-5/CM/°C@70°C

6.74

6.6-7.0

6.0-8.0

6.0-7.0

6.0-7.0

4.7-5.6

dN/dT X10^-5/°C

-8.5

-11.8 to -14.3

-12.0

-10.1

-8.0

-

Impact Strength (ft-lb/in) (Izod notch)

0.3 - 0.5

12 - 17

0.35

0.5

0.5

0.60

Key Advantages

Scratch Resistance

Chemical Resistance

High Abbe
L ow Dispersion

Impact Strength

Temperature Resistance

Clarity

Lowest Cost

High moisture barrier

High modulus

Good electrical properties

Low Birefringence

Chemical Resistance

Completely Amorphous

Impact
Resistance

Thermal & Chemical Resistance

High Index

Common Brand Names

Acrylite
Lucite
Perspex
Plexiglas

Lexan
Makrolon

Styron
Styrene
Polystyrene

Topas

Zeonor
Zeonex

Ultem