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| POLYCARBONATE |
Features excellent strength, stiffness and impact resistance, very good thermal stability, tough yet flexible down to -150° F, excellent dimensional accuracy and stability, weather resistance, excellent light transmission (up to 89% with translucent grades), good electrical insulating properties. High gloss finish.
Mechanical fastening is a good technique for attaching materials and components to polycarbonate. It is relatively quick and provides high assembly strength. In addition, mechanical fastening does not subject the plastic to chemical changes,
accordingly, losses in the properties of the polycarbonate are minimized.
Screws are one form of mechanical fastening used to minimize induced assembly stresses in polycarbonate use. Thread cutting, rather than thread forming screws are recommended. A thread forming screw merely displaces material, setting-up areas of high stress.
THREAD CUTTING screws remove material and do not cause excessive stress when used properly.
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| NOTE |
POLYCARBONATE IS NOT TOLERANT OF OIL IN GENERAL AND HIGH
SULFIDE OILS, IN PARTICULAR. IF OIL IS CONTINUOUSLY PRESENT, WE DO NOT RECOMMEND POLYCARBONATE.
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| Physical
Properties |
Approx.
Value |
Unit
of Measurement |
Standard |
| Tensile
stress, break |
70
69 |
MPa |
ISO
527
ASTM D 638 |
| Tensile
strain, break |
110
130 |
% |
ISO
527
ASTM D 638 |
| Tensile
stress, yield |
63
62 |
MPa |
ISO
527
ASTM D 638 |
| Tensile
strain, yield |
6
7 |
% |
ISO
527
ASTM D 638 |
| Tensile
modulus |
2350 |
MPa |
ISO
527 |
| Flexural
stress, yield |
90
97 |
MPa |
ISO
178
ASTM D 790 |
| Flexural
modulus |
2300
2340 |
MPa |
ISO
178
ASTM D 790 |
Izod impact,
unnotched
+23º C
-30º C
+23º C |
No failure
No failure
3204 |
KJ/m2
KJ/m2
Jm |
ISO 180/1U
ISO 180/1U
ASTM D 4812 |
Izod impact,
notched
+23º C
-30º C
+23º C |
25
10
801 |
KJ/m2
Jm |
ISO 180/1A
ISO 180/1A
ASTM D 256 |
Charpy impact,
unnotched
+23º C
-30º C |
No failure
No fialure |
KJ/m2
KJ/m2 |
ISO 179/1eU
ISO 178/1eU |
Charpy impact,
notched
+23º C |
35 |
KJ/m2 |
ISO 179/2C |
| Taber
abrasion, CS-17, 1 kg |
10 |
Mg/1000
cy |
ASTM
1044 |
| Ball
indentation 125º |
Passes |
- |
IEC
60695-10-2 |
| Thermal
conductivity |
0.2
0.27 |
W/m-ºC |
ISO
8302
ASTM C 177 |
| Specific heat |
1.26 |
J/g-ºC |
ASTM
C 351 |
Vicat
Softening Temperature
Method b
Method a |
141
153 |
º C |
ISO
306/ASTM D 1525 |
Long term
service
temperature |
115-135 |
ºC |
|
Heat
deflection temperature
Method A
Method B |
135
140 |
º C |
ISO 75
ISO 75 |
| Flame
resistance test |
V-2 |
|
UL 94 |
| Shrinkage |
0.5-0.7 |
% |
|
Dielectric
strength, in air,
3.2mm
1.0mm
in oil, 0.8mm
in oil, 1.6mm
in oli, 3.2mm |
15
15
35
27
17 |
KV/mm |
ASTM D 149
IEC 60243-1
IEC 60243-1
IEC 60243-1
IEC 60243-1 |
| Surface
resistivity |
>10^15 |
Ohms |
IEC
60093 |
| Volume
resitivity |
10^15 |
Ohm-cm |
IEC
60093 |
Permitivity
50 Hz
1 MHz |
2.7
2.7 |
|
IEC 60250
IEC 60250 |
Water
absoprtion
23º C, 50% RH
23º C, storage in H2O |
0.15
0.35 |
% |
ISO 62
ISO 62 |
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We have attempted to present
the information about our enclosures on this website in a
straight-forward manner. We offer this information as
accurate at the time of publication. Specifications are
subject to change without notice. Rose+Bopla Enclosures is
not responsible for inadvertent errors. |
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©2008
Phoenix Mecano Inc., 7330 Executive Way, Frederick, MD
21704, 301-696-9800,
rbinfo@pm-usa.com |
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