Glazing
Tuffak® Optical Grade High-Impact Polycarbonate Sheet
When you need a clear, rugged sheet for the toughest applications. Excellent for uses including transit shelters, protective laminations, window glazing and more.
When you need a clear, rugged sheet for the toughest applications, nothing outperforms Tuffak® Optical Grade polycarbonate sheet. It is excellent for uses including transit shelters, protective laminations, window glazing and more.
Tuffak® OG polycarbonate sheet has all the properties and features you demand, including:
- High optical clarity
- Highest light transmission of the Altuglas International line
- 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 | % | 87 |
| Haze | ASTM D1003 | % | 1 |
| Rockwell hardness | ASTM D785 | Mscale | 70 |
| Water absorption, equilibrium, 24 hrs | ASTM D570 | % | 0.15 |
TYPICAL STANDARD PROPERTIES
| PROPERTY | TEST METHOD | UNITS | TUFFAK® |
|---|---|---|---|
| MECHANICAL | |||
| Tensile strength, yield | ASTM D638 | psi | 9,000 |
| Tensile strength, ultimate | ASTM D638 | psi | 9,500 |
| Tensile modulus | ASTM D638 | psi | 340,000 |
| Tensile elongation | ASTM D638 | % | 110 |
| Flexural strength | ASTM D790 | psi | 14,000 |
| Flexural modulus | ASTM D790 | psi | 340,000 |
| Compressive strength | ASTM D695 | psi | 12,500 |
| Compressive modulus | ASTM D695 | psi | 340,000 |
| Poisson’s ratio | - | - | 0.38 |
| 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 |
| UValue (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 450 @ 100 °C |
| Dielectric constant | ASTM D150 | ||
| 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 | |
| Ignition temperature | ASTM D1929 | °F | 1,090 |
| Smoke developed | ASTM D2843 | - | 70 |
