Covestro Makrolon® AR sheet Polycarbonate

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Covestro Makrolon® AR sheet Polycarbonate
Categories:	Polymer; Thermoplastic; Polycarbonate (PC)
Material Notes:	Abrasion resistant Makrolon® AR sheet is a one or both sides hard-coated polycarbonate product that adds higher abrasion resistance and surface hardness to polycarbonate’s inherent performance benefits of impact strength and clarity. The proprietary hard-coat also provides chemical resistance and long lasting outdoor weathering performance. This product is available in clear, a range of standard tints, or can be custom matched to any color. Makrolon AR sheet has a seven (7) year Limited Product Warranty against breakage, yellowing, and hazing. Applications: Flat architectural glazing, machine guards, and laminates 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 at Break	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
Taber Abrasion, mg/1000 Cycles	2.0 @Load 5.00 kg	CS-10F Wheel; ASTM D1044

Electrical Properties	Original Value	Comments
Volume Resistivity	8.20e+16 ohm-cm	ASTM D257
Dielectric Constant	2.96 @Frequency 10 Hz	ASTM D150
	3.17 @Frequency 60 Hz	ASTM D150
Dielectric Strength	15.0 kV/mm @Thickness 0.125 mm	ASTM D149
Dissipation Factor	0.00090 @Frequency 60 Hz	ASTM D150
Arc Resistance	10 sec	Stinless Steel Strip
	120 sec

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	0.25 %
	2.0 %	2.8 years
	3.0 %	6 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
Chemical Resistance	Acetone	>24 Hrs
	Ammonia (10% concentration)	>24 Hrs
	Antifreeze (50/50)	>24 Hrs
	Benzene	>24 Hrs
	Bleach (Clorox concentrated)	>24 Hrs
	Chloroform	>24 Hrs
	Denatured Alcohol	>24 Hrs
	Di (2-ethylhexyl) phthalate	>24 Hrs
	Diesel Oil	>24 Hrs
	Hydrochloric Acid (20%)	>24 Hrs
	Isopropyl Alcohol (IPA)	>24 Hrs
	Kerosene	>24 Hrs
	Methyl Alcohol	>24 Hrs
	Methyl Butyl Ketone	>24 Hrs
	Methyl Ethyl Ketone	>24 Hrs
	Methylene Chloride	>24 Hrs
	Naphthalene, 1-bromo-	>24 Hrs
	Nitric Acid (20%)	>24 Hrs
	Potassium Hydroxide - Lye (10%)	>24 Hrs
	Sodium Hydroxide (10%)	>24 Hrs
	Sulfuric Acid (20%)	>24 Hrs
	Toluene	>24 Hrs
	Turpentine	>24 Hrs
	Unleaded Gasoline (87 Octane)	>24 Hrs
	Vinegar	>24 Hrs
	Xylene	>24 Hrs
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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