Chemours Teflon™ Type CLZ-20, both side cementable ETFE film

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Chemours Teflon™ Type CLZ-20, both side cementable ETFE film
Categories:	Polymer; Film; Thermoplastic
Material Notes:	Tefzel™ ETFE film is a transparent, thermoplastic film that can be heat sealed, thermoformed, vacuum formed, heat bonded, welded, metallized, laminated (combined with dozens of other materials), and used as an excellent hot melt adhesive. This wide variety of fabrication possibilities combines with the following important properties to offer a unique balance of capabilities not available in other plastic films. Features: Chemical Compatibility, Electrical Reliability, Wide Thermal Range, Mechanical Toughness, Long Time Weather ability, Reliability. Information provided by Chemours.
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Physical Properties	Original Value	Comments

Density	1.70 g/cc	ASTM D1505
Water Absorption	<= 0.030 % @Time 86400 sec	ASTM D570
Moisture Absorption	<= 0.0200 %
Specific Surface Area	10 m²/g
	20 m²/g
Water Vapor Transmission	0.500 g/100 in²/day	ASTM E96
Oxygen Transmission	1600 cc-mm/m²-24hr-atm	ASTM D1434
Nitrogen Transmission	500 cc-mm/m²-24hr-atm	ASTM D1434
Carbon Dioxide Transmission	3900 cc-mm/m²-24hr-atm	ASTM D1434
Thickness	1.00 mil
	2.00 mil

Mechanical Properties	Original Value	Comments
Hardness, Shore D	72	ASTM D2240
Tensile Strength at Break	6000 psi	ASTM D882
Tensile Strength	43.0 MPa	ASTM D1457
Elongation at Break	300 %	ASTM D882
Flexural Modulus	0.830 GPa	ASTM D882
Flex Crack Resistance	50000	Cycles MIT Folding Endurance; ASTM D2176
Izod Impact, Notched	NB	ASTM D256
Coefficient of Friction, Dynamic	0.20 - 0.30	Film-to-Steel; ASTM D1894

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 1.00e+17 ohm-cm	ASTM D257
Surface Resistivity per Square	>= 1.00e+15 ohm	ASTM D257
Dielectric Constant	2.6 @Frequency 1000 Hz	ASTM D150
Dielectric Strength	160 kV/mm @Thickness 0.0250 mm	Short-time, in air; ASTM D149 Method A
Dissipation Factor	0.00070	ASTM D150
Arc Resistance	122 sec	ASTM D495

Thermal Properties	Original Value	Comments
Specific Heat Capacity	0.280 BTU/lb-°F
Thermal Conductivity	0.240 W/m-K	Cenco-Fitch
Melting Point	260 - 280 °C	ASTM D3418
Flammability, UL94	V-0
Oxygen Index	30 %

Optical Properties	Original Value	Comments
Refractive Index	1.40	ASTM D542
Transmission, Visible	90 %	Solar Transmission; ASTM E-424

Descriptive Properties
Chemical/Solvent Resistance	Excellent	ASTM D543
Dimensional Stability	1% shrinkage.	MD. 30 minutes at 150°C
	5% shrinkage.	TD. 30 minutes at 150°C
Heat of Combustion	13.7 MJ/kg	ASTM D240
Salt Spray Resistance Coatings (hours)	1000	ASTM B117. 5% NaCl at 35 °C (95 °F).
Tear Strength-Initial (Graves)	500 g	ASTM D1004
Tear Strength-Propagating (Elmendorf)	75 g	ASTM D 1922
Weather Resistance (years unaffected)	15	Florida Exposure

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PDU8851 / 268778

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