| Comparison of Plastic Sheet Properties |
Property/ Material |
Thermo- plastic Poly- urethane (Ether Grade) |
Thermo- plastic Poly- urethane (Ester Grade) |
Poly- carbonate |
Polyvinyl Chloride |
Poly- ethyleneter- ephthalate* |
Polystyrene |
Polypropylene |
Common Names/ Trade Names |
|
|
PC |
PVC |
PET |
HIPS |
PP |
| Estimated Cost (Per M Sq. In./10 Mil) |
|
|
2.60 |
0.588
(Medical) |
0.656 |
0.345 |
0.276 |
| Approximate Yield (Sq. In./Lb./Mil) |
|
|
23,000 |
20,410 |
20,560 |
25,835 |
30,800 |
| Specific Gravity |
|
|
1.20 |
1.35 |
1.34 |
1.06 |
.895 |
| Clarity |
|
|
Good |
Excellent |
Excellent |
Poor to
Fair |
Poor to
Good |
| Approximate Heat Deflection Temperature (°F @
264 psi) |
|
|
275° |
167° |
145° |
183° |
120° |
| Impact Strength |
|
|
Excellent |
Good |
Excellent |
Fair |
Fair to Good |
| Sealing Temperature (F) Forming Temperature (F) |
|
|
310 400° 300 350° |
315 360° 275 350° |
275 400° 280 350° |
250 350° 275 350° |
285 400° 300 340° |
| Outstanding Properties |
|
|
Superior Impact Forming Lamination |
Chemical Resi- stance Forming |
Impact & Tear Strength Clarity |
Dimensional Stability Aging Forming |
Rigidity WVTR Barrier High & low stress heat deflection No odor or taste trans- mission |
| Principal Uses |
|
|
Thermoforming Skylights Glazing Security |
Over- wraps Lamina- tions General- purpose blisters |
Forming Laminations |
Forming Screen Printing |
Forming Medical & food trays |