transit glazing windows
PALGARD TG
PALGARD TG
PALGARD TG

PALGARD™ TG FLAT TRANSPORTATION-GRADE POLYCARBONATE SHEET

Optically clear, impact-resistant glazing for for mass transit applications

PALGARD TG is engineered to withstand the rigors of daily service in the transportation industry, including vandalism. Using a state-of-the-art manufacturing and inspection system, it is designed for optical quality and durability. Available for applications ranging from commuter rails to recreation vehicles, our polycarbonate substrate features an advanced surface coating that provides extraordinary chemical, physical, and abrasion resistance. Combined with its exceptional impact strength, PALGARD TG offers transit passengers and equipment operators increased safety protection.

Budgets can be made or broken by unplanned maintenance and replacement. With PALGARD TG, you can reduce costs while improving in-service availability.

Product Details

Product Availability*

Width X Length In. (mm)Thicknesses in. (mm)
48 X 96 (1200 X 2440).236 & .460 (6 & 11.7)
60 X 96 (1524 X 2440)Available upon request.
72 X 96 (1830 X 2440 )Stock levels fluctuate according to market demand.

 

* Special dimensions and colors are available, subject to minimum order.

Colors*

Colors
Clear*

 

* Special dimensions and colors are available, subject to minimum order.

Physical Properties

Property Conditions
(U.S. Customary)
ASTM Method Units - SI
(U.S. Customary)
Value
(U.S. Customary)
Physical
Density D-1505g/cm³ (lb/ft³)1.2 (75)
Water Absorption 24 hr. @ 23°C D-570 % 0.15
Mechanical
Tensile strength at yield 10 mm/min (0.4 in./min) D-638 MPa (psi) 62 (9,000)
Tensile strength at break 10 mm/min (0.4 in./min) D-638 MPa (psi) 65 (9500)
Elongation at yield 10 mm/min (0.4 in./min) D-638 % 6
Elongation at break 10 mm/min (0.4 in./min) D-638 % 110
Tensile Modulus of Elasticity 10 mm/min (0.4 in. /min) D-638 MPa (psi) 2,378 (345,000)
Flexural Modulus 1.3 mm/min (0.05 in./min) D-790 MPa (psi) 2,378 (345,000)
Flexural Strength at Yield 1.3 mm/min (0.05 in./min) D-790 MPa (psi) 93 (13,500)
Notch Impact Strength Izod 23°C (73°F) D-256 J/m (ft·lbf/in.) 800 (15)
Notch Impact Strength Charpy 23°C (73°F) D-256 J/m (ft·lbf/in) 800 (15)
Impact Falling Weight 3 mm (0.12 in.) Sheet ISO-6603/1b J (ft·lbf) 158 (117)
Rockwell Hardness D-785 R scale / M scale 125 / 70
Abrasion (Taber Process)100 Cycles, CS-10S Wheel, 500gD-1044% Haze<2.0
Compressive Strength1.3 mm/min (.05 in./min)D-695MPa (psi) 86 (12,500)
Compressive Modulus1.3 mm/min (.05 in./min)D-695MPa (psi) 2378 (345,000)
Shear strength at Yield1.3 mm/min (.05 in./min)D-732MPa (psi) 41 (6000)
Shear strength at Break1.3 mm/min (.05 in./min)D-732MPa (psi) 68 (10,000)
Shear Modulus1.3 mm/min (.05 in./min)D-732MPa (psi) 786 (114,000)
Thermal
Long Term Service Temperature °C (°F) -75 to +100 (-175 to +212)
Short Term Service Temperature °C (°F) -75 to +120 (-175 to +250)
Heat Deflection Temperature Load: 1.82 Mpa (264 psi) D-648 °C (°F) 132 (270)
Vicat Softening Temperature Load: 1 kg (2.2 lb) D-1525 °C (°F) 150 (300)
Coefficient of Linear
Thermal Expansion
D-696 10-⁵/°C (10-⁵/°F)6.5 (3.6)
Thermal Conductivity C-177 W/m°K (Btu-in./hr-ft²-°F)0.21 (1.46)
Specific Heat Capacity C-351 kJ/kg°K (Btu/lb°F) 1.26 (0.31)
Optical
Haze 3 mm (0.12 in.)
Clear Sheet
D-1003 % <0.5
Light Transmission 3 mm (0.12 in.)
Clear Sheet
D-1003 % 89
Refractive Index Clear Sheet D-542 1.59
Yellowness Index 3 mm (0.12 in.)
Clear Sheet
D-1925 <1
Electrical
Dielectric Constant 50 Hz D-150 3
1 MHz D-150 2.9
Dissipation Factor 50 Hz D-150 0.9
1 MHz D-150 11
Dielectric Strength Short Time 500 V/s D-149 kV/mm (V/mil) >30 (>770)
Surface Resistance Ketley D-257 Ohm 5.1x10^15
Volume Resistance Ketley D-257 Ohm-cm1.3x10^17

Regulatory Code Compliance Certification

 

OrganizationStandardClassification*
FRA (Federal Railroad Administration)49 CFR Part 238, App. B (ASTM E162)Is ≤ 100
FRA (Federal Railroad Administration)49 CFR Part 238, App. B (ASTM E662)Ds (4.0) ≤ 200
FRA (Federal Railroad Administration)49 CFR Part 223 (Ballistic .22 LR)Pass
FRA (Federal Railroad Administration)49 CFR Part 223 (Impact, Type I & II)Pass
ANSIZ26.1-96AS-4, AS-4A, AS-5, and AS-12
BoeingBSS 7239Approved
ASTMD635 (Horizontal Burn, AEB)<1 in.

 

* Depends on Thickness