Polymethylpentene (PMP Film)

MATERIAL DATA SHEET The information contained herein is typical and intended for REFERENCE USE ONLY. This information should NOT be used as a basis for design, manufacturing or quality assurance purposes. Please contact us for complete, manufacturer-approved material property data sheets. All values below are at 72°F (23°) unless otherwise noted.

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Polymethylpentene (PMP Film) Specifications

Description

PMP Film has a remarkable and unique combination of transparency and resistance to heat and chemicals. It also has unique acoustical properties. It is used in a wide variety of applications including speaker cones, gas separating membranes, release films and carrier films for ceramic slurry.

Applications

Speaker cones • Gas separating membranes • Release films • Carrier films for ceramic slurry • Antennas • Medical instrument cover • Ultrasonic imaging equipment

Advantages of Polymethylpentene (PMP Film)

Lowest specific gravity of any known thermoplastic • Low moisture absorption • Exceptional electrical properties • Good chemical resistance • High heat resistance • Excellent acoustical properties • Transparency • Resin FDA compliant

Manufacturing Capabilities

Thicknesses and Widths: .002” to .029” up to 24” wide • Finishes: all thicknesses available polished one side, matte the other (P/M)

Typical Properties of Polymethylpentene (PMP Film)

Mechanical Properties
	Units	ASTM Test	Result
Tensile Strength @yield	psi	D882	4,110
Elongation @break	%	D882	10
Tensile Modulus	psi	D882	280,000
Flexural Modulus	psi	D790	210,000
Tear Strength - prop.	g/mil	D1004	125
Thermal Properties
Continious Use Temp. - UL	°F	-	212
Heat Deflection Temp. @66 psi	°F	D648	212
Melt Temp - DSC	°F	-	455
Glass Transition Temp.	°F	D3418	-
UL Rating - UL94	-	-	HB
L.O.I.	%	D2862	<25
NBS Smoke	Dmax	E662	-
Electrical Properties
Surface Resistivity	Ohms	D257	>1016
Dielectric Strength @ .003"	V/mil	D149	3,710
Dielectric Constant	1 kHz	D150	2.12
Dissipation Factor	10 kHz	D150	.000025
Other Properties
Specific Gravity	-	D792	0.835
Water Absorption @24 hours	%	D570	0.01
Refractive Index	-	-	1.463
Haze	%	D1003	2
Area Factor	in2/lb/mil	-	32,725