Acrylic Typical Properties Generic Acrylic (PMMA)

Product Description
This data represents typical values that have been calculated from all products classified as: Generic Acrylic (PMMA)

This information is provided for comparative purposes only.
General  
Material Status 
  • Commercial: Active
Availability 
  • Africa & Middle East
  • Asia Pacific
  • Europe
  • Latin America
  • North America
Also Available In 
  • Asia Pacific
  • Latin America
  • North America
Physical
Nominal Value
Unit
Test Method
Density / Specific Gravity
     
--
1.14 to 1.21
 
ASTM D792
73°F
1.18 to 1.19
g/cm³
ISO 1183
Apparent (Bulk) Density
0.65 to 0.71
g/cm³
ASTM D1895
Melt Mass-Flow Rate (MFR)
     
230°C/3.8 kg
0.50 to 6.5
g/10 min
ASTM D1238
230°C/3.8 kg
0.30 to 6.5
g/10 min
ISO 1133
Melt Volume-Flow Rate (MVR) (230°C/3.8 kg)
0.80 to 21
cm³/10min
ISO 1133
Spiral Flow
5.11 to 15.1
in
 
Molding Shrinkage
     
Flow : 73°F
3.9E-3 to 6.1E-3
in/in
ASTM D955
Across Flow : 73°F
3.0E-3 to 0.010
in/in
ASTM D955
73°F
0.40 to 0.61
%
ISO 294-4
Water Absorption
     
24 hr, 73°F
0.30 to 0.40
%
ASTM D570
24 hr, 73°F
0.30
%
ISO 62
Saturation, 73°F
0.30 to 3.0
%
ISO 62
Equilibrium, 73°F
0.30
%
ASTM D570
Equilibrium, 73°F, 50% RH
0.30 to 0.37
%
ISO 62
Intrinsic Viscosity (73°F)
0.44 to 0.50
dl/g
 
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus
     
73°F
189000 to 543000
psi
ASTM D638
73°F
464000 to 480000
psi
ISO 527-2
Tensile Strength
     
Yield, 73°F
6290 to 10900
psi
ASTM D638
Yield, 73°F
725 to 10900
psi
ISO 527-2
Break, 73°F
2800 to 10900
psi
ASTM D638
Break, 73°F
5440 to 11400
psi
ISO 527-2
73°F
5380 to 11500
psi
ASTM D638
73°F
967 to 12300
psi
ISO 527-2
Tensile Elongation
     
Yield, 73°F
3.0 to 11
%
ASTM D638
Yield, 73°F
3.9 to 5.1
%
ISO 527-2
Break, 73°F
2.2 to 37
%
ASTM D638
Break, 73°F
1.8 to 6.5
%
ISO 527-2
Nominal Tensile Strain at Break (73°F)
6.5 to 46
%
ISO 527-2
Flexural Modulus
     
73°F
169000 to 503000
psi
ASTM D790
73°F
14500 to 761000
psi
ISO 178
Flexural Strength
     
73°F
6770 to 17800
psi
ASTM D790
73°F
1360 to 20300
psi
ISO 178
Yield, 73°F
7040 to 19900
psi
ASTM D790
Break, 73°F
4800 to 15200
psi
ASTM D790
Compressive Stress (73°F)
14000 to 17400
psi
ISO 604
Taber Abrasion Resistance (73°F)
0.00100 to 0.0355
mg
ASTM D1044
Impact
Nominal Value
Unit
Test Method
Charpy Notched Impact Strength (73°F)
0.57 to 1.5
ft·lb/in²
ISO 179
Charpy Unnotched Impact Strength (73°F)
7.7 to 11
ft·lb/in²
ISO 179
Notched Izod Impact
     
73°F
0.26 to 1.2
ft·lb/in
ASTM D256
73°F
0.78 to 3.0
ft·lb/in²
ISO 180
Notched Izod Impact (Area) (73°F)
0.623 to 0.885
ft·lb/in²
ASTM D256
Unnotched Izod Impact (73°F)
0.29 to 24
ft·lb/in
ASTM D256
Gardner Impact (73°F)
3.00 to 25.5
in·lb
ASTM D3029
Gardner Impact (73°F)
2.00 to 3.45
in·lb
ASTM D5420
Hardness
Nominal Value
Unit
Test Method
Rockwell Hardness
     
73°F
31 to 105
 
ASTM D785
73°F
67 to 105
 
ISO 2039-2
Ball Indentation Hardness
12000 to 28900
psi
ISO 2039-1
Thermal
Nominal Value
Unit
Test Method
Deflection Temperature Under Load
     
66 psi, Unannealed
173 to 220
°F
ASTM D648
66 psi, Unannealed
179 to 225
°F
ISO 75-2/B
66 psi, Annealed
153 to 223
°F
ASTM D648
264 psi, Unannealed
162 to 221
°F
ASTM D648
264 psi, Unannealed
180 to 217
°F
ISO 75-2/A
264 psi, Annealed
125 to 223
°F
ASTM D648
264 psi, Annealed
181 to 215
°F
ISO 75-2/A
Glass Transition Temperature
     
--
226 to 250
°F
ISO 11357-2
--
218 to 244
°F
DSC
Vicat Softening Temperature
     
--
179 to 238
°F
ASTM D1525
--
184 to 240
°F
ISO 306
CLTE - Flow
     
--
3.3E-5 to 4.5E-5
in/in/°F
ASTM D696
--
3.9E-5 to 4.1E-5
in/in/°F
ASTM E831
--
3.9E-5 to 6.1E-5
in/in/°F
ISO 11359-2
Specific Heat (73°F)
0.350 to 0.500
Btu/lb/°F
ASTM C351
Thermal Conductivity
     
73°F
1.3 to 1.5
Btu·in/hr/ft²/°F
ASTM C177
73°F
1.2 to 1.3
Btu·in/hr/ft²/°F
ISO 8302
Electrical
Nominal Value
Unit
Test Method
Surface Resistivity
     
--
1.0E+9 to 1.0E+16
ohms
ASTM D257
--
1.0E+14 to 1.0E+16
ohms
IEC 60093
Volume Resistivity
     
73°F
5.0E+8 to 2.5E+15
ohms·cm
ASTM D257
73°F
1.0E+14 to 2.6E+15
ohms·cm
IEC 60093
Dielectric Strength
     
73°F
380 to 760
V/mil
ASTM D149
73°F
480 to 1500
V/mil
IEC 60243-1
Dielectric Constant
     
73°F
3.06 to 3.73
 
ASTM D150
73°F
2.90 to 4.26
 
IEC 60250
Dissipation Factor
     
73°F
0.040 to 0.051
 
ASTM D150
73°F
0.029 to 0.051
 
IEC 60250
Flammability
Nominal Value
Unit
Test Method
Burning Rate
1.2 to 1.3
in/min
ISO 3795
Glow Wire Flammability Index
1200 to 1290
°F
IEC 60695-2-12
Glow Wire Ignition Temperature
1200
°F
IEC 60695-2-13
Optical
Nominal Value
Unit
Test Method
Refractive Index
     
--
1.488 to 1.490
 
ASTM D542
--
1.490 to 1.491
 
ISO 489
Transmittance
90.8 to 93.0
%
ASTM D1003
Haze
0.100 to 2.60
%
ASTM D1003
Yellowness Index
-1.0 to 1.1
YI
ASTM D1925
Injection
Nominal Value
Unit
 
Drying Temperature
166 to 202
°F
 
Drying Time
2.5 to 5.1
hr
 
Suggested Max Moisture
0.097 to 0.10
%
 
Suggested Max Regrind
20
%
 
Hopper Temperature
158 to 159
°F
 
Rear Temperature
379 to 491
°F
 
Middle Temperature
427 to 491
°F
 
Front Temperature
377 to 509
°F
 
Nozzle Temperature
427 to 485
°F
 
Processing (Melt) Temp
392 to 520
°F
 
Mold Temperature
139 to 200
°F
 
Injection Pressure
12000 to 16200
psi
 
Back Pressure
87.0 to 435
psi
 
Screw Speed
75 to 76
rpm
 
Injection Notes
This data represents typical values that have been calculated from all products classified as: Generic Acrylic (PMMA)

This information is provided for comparative purposes only.
Extrusion
Nominal Value
Unit
 
Drying Temperature
175 to 176
°F
 
Drying Time
2.5 to 4.0
hr
 
Melt Temperature
419 to 487
°F
 
Die Temperature
464 to 473
°F
 
Extrusion Notes
This data represents typical values that have been calculated from all products classified as: Generic Acrylic (PMMA)

This information is provided for comparative purposes only.
Notes
1Typical properties: these are not to be construed as specifications.