Covestro Makrolon® UV sheet Polycarbonate

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Covestro Makrolon® UV sheet Polycarbonate
Categories:	Polymer; Thermoplastic; Polycarbonate (PC)
Material Notes:	Extended UV resistance Makrolon® UV sheet is a transparent polycarbonate product with an advanced UV resistance technology that assures long lasting outdoor weathering performance in flat and curved glazing applications. It has higher impact resistance than acrylic and glass, and it can be cold-formed during installation. Makrolon UV is produced with high optical quality and minimal distortion in clear, a range of standard architectural tints, or can be custom matched to any color. Makrolon UV has a ten (10) year Limited Product Warranty against breakage, yellowing, and loss of light transmission. Applications: Awnings, entryway canopies, skylights, barrel vaults, glazed archways, covered pedestrian walkways, and sloped, vertical, and curved glazing Information provided by Covestro
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Physical Properties	Original Value	Comments

Specific Gravity	1.20 g/cc	ASTM D792
Water Absorption	0.15 % @Time 86400 sec	ASTM D570

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	70	ASTM D785
Hardness, Rockwell R	118	ASTM D785
Tensile Strength, Ultimate	65.5 MPa	ASTM D638
Tensile Strength, Yield	62.1 MPa	ASTM D638
Elongation at Break	110 %	ASTM D638
Tensile Modulus	2340 MPa	ASTM D638
Flexural Strength	93.1 MPa	ASTM D790
Flexural Modulus	2380 MPa	ASTM D790
Compressive Strength	86.2 MPa	ASTM D695
Compressive Modulus	345000 psi	ASTM D695
Poissons Ratio	0.38	ASTM E132
Shear Modulus	114 ksi	ASTM D732
Shear Strength	6.00 ksi	Yield; ASTM D732
	10.0 ksi	Break; ASTM D732
Izod Impact, Notched	16.0 ft-lb/in @Thickness 3.17 mm	ASTM D256
Izod Impact, Unnotched	NB @Thickness 3.17 mm	ASTM D256
Impact Test	>= 47.0 ft-lb @Thickness 3.17 mm	ASTM D3763

Electrical Properties	Original Value	Comments
Volume Resistivity	8.20e+16 ohm-cm	ASTM D257
Dielectric Constant	2.96 @Frequency 10 Hz	ASTM D 150
	3.17 @Frequency 60 Hz	ASTM D 150
Dielectric Strength	15.0 kV/mm @Thickness 3.17 mm	ASTM D149
Dissipation Factor	0.00090 @Frequency 60 Hz	ASTM D150
Arc Resistance	10 sec	Stainless Steel Strip Electrode; ASTM D495
	120 sec	Tungsten Electrodes; ASTM D495

Thermal Properties	Original Value	Comments
CTE, linear	37.5 µin/in-°F	ASTM D696
Thermal Conductivity	1.35 BTU-in/hr-ft²-°F	ASTM C177
Deflection Temperature at 0.46 MPa (66 psi)	142 °C	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	132 °C	ASTM D648
Brittleness Temperature	200 °F	ASTM D746

Optical Properties	Original Value	Comments
Refractive Index	1.586	ASTM D542
Yellow Index	0.60 %
	1.5 %	6 years
	2.5 %	10 years
Transmission, Visible	18 % @Thickness 3.00 mm	I35 Dark Gray; ASTM D1003
	50 % @Thickness 3.00 mm	I30 Gray; ASTM D1003
	50 % @Thickness 3.00 mm	K09 Bronze; ASTM D1003
	86 % @Thickness 3.00 mm	Clear; ASTM D1003

Descriptive Properties
Shading Coefficient	0.77	Gray or Bronze @ 0.236", NFRC 100-2010
	0.97	Clear @ 0.236", NFRC 100-2010
U-value	0.78 BTU/hr-ft2-°F	0.375", summer, NFRC 100-2010
	0.85 BTU/hr-ft2-°F	0.236", summer, NFRC 100-2010
	0.85 BTU/hr-ft2-°F	0.375", winter, NFRC 100-2010
	0.92 BTU/hr-ft2-°F	0.236", winter, NFRC 100-2010

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PCOVEST0865 / 202648

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