Polycarbonate sheets are resilient, transparent thermoplastic materials, prized for their strength, impact resistance, and optical clarity. These sheets are lightweight, yet incredibly durable, making them suitable for various demanding applications. Their remarkable impact resistance, often compared to that of bulletproof glass, makes them favored for protective applications such as safety shields, security glazing, and machine guards. Polycarbonate sheets offer exceptional UV resistance and weatherability, ensuring long-term performance in outdoor environments. They can be easily fabricated, bent, and thermoformed, enhancing their versatility in construction, signage, and DIY projects. Polycarbonate sheets are a reliable choice for applications demanding both durability and optical excellence.
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TYPICAL PROPERTIES of POLYCARBONATE |
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ASTM or UL test |
Property |
Unfilled |
30% Glass |
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PHYSICAL |
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|
D792 |
Density (lb/in³) (g/cm³) |
0.043 1.2 |
0.052 1.43 |
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D570 |
Water Absorption, 24 hrs (%) |
0.12 |
0.12 |
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MECHANICAL |
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D638 |
Tensile Strength (psi) |
9,500 |
19,000 |
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D638 |
Tensile Modulus (psi) |
320,000 |
- |
|
D638 |
Tensile Elongation at Break (%) |
60 |
10 |
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D790 |
Flexural Strength (psi) |
15,000 |
23,000 |
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D790 |
Flexural Modulus (psi) |
375,000 |
1,100,000 |
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D695 |
Compressive Strength (psi) |
12,000 |
18,000 |
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D695 |
Compressive Modulus (psi) |
240,000 |
500,000 |
|
D785 |
Hardness, Rockwell |
M70 / R118 |
M92 |
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D256 |
IZOD Notched Impact (ft-lb/in) |
13 |
2 |
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THERMAL |
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D696 |
Coefficient of Linear Thermal Expansion (x 10-5 in./in./°F) |
3.9 |
1.2 |
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D648 |
Heat Deflection Temp (°F / °C) at 264 psi |
270 / 132 |
295 / 146 |
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D3418 |
Glass Transition Temp (°F / °C) |
293 / 145 |
300 / 149 |
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- |
Max Operating Temp (°F / °C) |
250 / 121 |
270 / 132 |
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C177 |
Thermal Conductivity (BTU-in/ft²-hr-°F) (x 10-4 cal/cm-sec-°C) |
1.3 6.9 |
1.3 6.9 |
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UL94 |
Flammability Rating @ less than .45" (11.5mm) thickness @ .45" (11.5mm) thickness and above |
H-B V-0 |
H-B V-0 |
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ELECTRICAL |
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D149 |
Dielectric Strength (V/mil) short time, 1/8" thick |
390 |
470 |
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D150 |
Dielectric Constant at 60 Hz |
3.17 |
3.35 |
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D150 |
Dissipation Factor at 60 Hz |
0.0009 |
0.0011 |
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D257 |
Volume Resistivity (ohm-cm)at 50% RH |
1016 |
1016 |
Roofing sheets are essential building materials used for covering and protecting structures. These sheets are typically made from a variety of materials, including metal, asphalt, polycarbonate, and more. They serve as a barrier against the elements, providing insulation, weatherproofing, and aesthetic appeal. Metal roofing sheets, like steel or aluminum, offer longevity and durability, while asphalt shingles are popular for their cost-effectiveness. Polycarbonate roofing sheets are transparent and used for natural lighting. The choice of roofing material depends on factors like climate, budget, and design preferences. Proper installation of roofing sheets is crucial for the longevity and safety of any structure, ensuring protection from rain, wind, and other environmental factors.
| Specification | |
|---|---|
| Scratch Hardness (T/B) | 1.5 – 2/1 – 1.5 kg |
| Impact test (in Joules) (Thickness based Soft material) | As per Standard |
| Salt Spray Test (Specific ** Coating Type) | 1000 Hrs Pass |
| Adhesion Test (cross-hatch) | 100% |
| Erichsen Cupping Test | As per Standard |
| Humidity Test | 750 – 1000 hrs |
| T – Bend Test (T = substrate thickness) | No Tape Loss |
| Water Boiling Test | As per Standard |
| Solvent Rub Test (MEK – Double rub) | 100DR |
| Chemical Resistance | As per standard |
| Max. Operating Temp | Upto 140 degree C |