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Tuffak® Coated Optical Grade High-Impact Polycarbonate Sheet |
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Today's luxury automobiles, limousines and armored
trucks demand higher security glazing products.
Tuffak® Coated Optical Grade polycarbonate sheet,
with one-sided abrasion-resistant coating, is designed
for use in protective transparent laminates. Tuffak® is
an excellent material for laminate performance and
offers exceptional clarity and light transmission.
Whether you’re protecting single vehicles or entire
fleets, trust it to deliver these outstanding properties:
- Abrasion resistance
- High impact resistance
- High optical clarity
- High light transmission
- UV stability
- Low distortion
TYPICAL STANDARD PROPERTIES
| PROPERTY |
TEST METHOD |
UNITS |
TUFFAK® |
| PHYSICAL |
| Specific gravity |
ASTM D792 |
- |
1.2 |
| Refractive index @ 72 °F |
ASTM D542 |
- |
1.586 |
| Light transmission, clear 1⁄8” |
ASTM D1003 |
% |
89 |
| Haze |
ASTM D1003 |
% |
<1.0 |
| Rockwell hardness |
ASTM D785 |
Mscale |
70 |
| Water absorption, equilibrium, 24 hrs |
ASTM D570 |
% |
0.15 |
| Taber Abrasion |
ASTM D1044 |
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| (CS10F Wheel, 500 gms each wheel) |
ANSI Z26.1 |
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Test #17 |
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| Initial, haze |
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% |
<1.0 |
| 100 rev., haze |
|
% |
<3.0 |
TYPICAL STANDARD PROPERTIES
| PROPERTY |
TEST METHOD |
UNITS |
TUFFAK® |
| MECHANICAL |
| Tensile strength, yield |
ASTM D638 |
psi |
9,500 |
| Tensile strength, ultimate |
ASTM D638 |
psi |
8,400 |
| Tensile modulus |
ASTM D638 |
psi |
340,000 |
| Tensile elongation |
ASTM D638 |
% |
100 |
| Flexural strength |
ASTM D790 |
psi |
13,500 |
| Flexural modulus |
ASTM D790 |
psi |
340,000 |
| Compressive strength (0.5”/minute) |
ASTM D695 |
psi |
12,500 |
| Izod impact strength, notched @ 1/8” |
ASTM D256 |
ft-lbs/inch |
16 |
| Charpy impact |
ASTM D256 |
ft-lbs/inch |
no break |
| Instrumental drop dart, 1/8” |
ASTM D3763 |
ft-lbs |
>50 |
| Shear strength @ yield |
ASTM D732 |
psi |
5,800 |
| THERMAL |
| Coefficient of thermal expansion |
ASTM D696 |
in/in/ °F |
0.0000380 |
| Coefficient of thermal conductivity |
ASTM C177 |
BTU-in/hr-sqft- °F |
1.35 |
| DTUFL @ 264 psi |
ASTM D648 |
°F |
275 |
| DTUFL @ 66 psi |
ASTM D648 |
°F |
285 |
| U Value (summer gain, winter loss) |
- |
BTU-in/hr-sqft- °F |
0.98, 1.06 |
| ELECTRICAL |
| Dielectric constant,test @ 0.125”thick |
ASTM D149 |
volts/mil |
380 @ 25 °C |
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|
450 @ 100 °C |
| Dielectric constant |
ASTM D150 |
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| 60 Hz |
|
- |
2.9 |
| 1,000,000 Hz |
|
- |
2.9 |
| Volume resistivity @ 23 °C |
ASTM D257 |
ohm/cm |
10^16 |
| FLAMMABILITY |
| Horizontal burn rate |
ASTM D635 |
inches |
<1 (CC-1) |
| Ignition temperature |
ASTM D1929 |
°F |
1,090 |
| Smoke developed |
ASTM D2843 |
- |
70 |
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