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Mylar® MO polyester film has excellent electrical properties. This film offer exceptional cut-through resistance , low shrinkage , low moisture absorption, and high thermal durability. Mylar® MO film is used as insulation in systems that have been given Class B ratings by Underwriters Laboratories (UL). It offers product uniformity that enhances processing on automatic slot and wedge insertion equipment.
Unit of Measure
Items
Mylar® Film

Mylar® Type MO 250 Feet (ft) Length Polyester Film

Mylar® Film

Mylar® Type MO 333 Feet (ft) Length Polyester Film

Mylar® Film

Mylar® Type MO 416 Feet (ft) Length Polyester Film

Mylar® Film

Mylar® Type MO 500 Feet (ft) Length Polyester Film

Mylar® Film

Mylar® Type MO 583 Feet (ft) Length Polyester Film
Length N/A 250 ft N/A 333 ft N/A 416 ft N/A 500 ft N/A 583 ft
Thickness N/A 500 gauge0.005 in
Width N/A 20 in
Weight N/A 15 lb N/A 20 lb N/A 25 lb N/A 30 lb N/A 35 lb
Inside Diameter1 N/A 3 in
Outside Diameter N/A 13 in16 in18 in
Approvals N/A Underwriters Laboratories (UL 94 VTM-2)
Dielectric Strength N/A 13.5 kV
Test Method for Dielectric Strength N/A American Society for Testing and Materials (ASTM) D149 1/4" electrode 500 V/sec 25ºC in air
Optical Opacity N/A 14 %
Density N/A 1.3923 g/cm³
Elongation at Break (Machine Direction (MD)) N/A 140 %
Test Method for Elongation at Break (Machine Direction (MD)) N/A American Society for Testing and Materials (ASTM) D882A
Elongation at Break (Transverse Direction (TD)) N/A 115 %
Test Method for Elongation at Break (Transverse Direction (TD)) N/A American Society for Testing and Materials (ASTM) D882A
Tensile Strength (Machine Direction (MD)) N/A 27 psi
Test Method for Tensile Strength (Machine Direction (MD)) N/A American Society for Testing and Materials (ASTM) D882A
Tensile Strength (Transverse Direction (TD)) N/A 30 psi
Test Method for Tensile Strength (Transverse Direction (TD)) N/A American Society for Testing and Materials (ASTM) D882A
Nominal Yield N/A 4000 lb/in²
Shrinkage Machine Direction (MD) N/A 1.1 %
Test Method for Shrinkage Machine Direction (MD) N/A Unrestrained at 150ºC /30 min
Shrinkage Transverse Direction (TD) N/A 0.7 %
Test Method for Shrinkage Transverse Direction (TD) N/A Unrestrained at 150ºC /30 min
General Information N/A The inherit mechanical durability of Mylar® Type MO film and its good dielectric and thermal durability characteristics endow this film with multiple advantages in motors and generators.
Special Features N/A Slit rolls are available in the following configuration:

Master rolls are available as shown in the Standard Put-Ups table . They are splice free and are available in selected widths in minimum order quantities of 35,000 lb per order with a minimum of 10,000 lb per item .
Applications N/A Mylar® MO film is being widely used for electrical insultation in slot liners, wedges, and phase insulation for motors and generators. This film is also frequently used in hermetic motor/compressor sealed units, fractional horse power motors, diaphragms, and industrial laminations.
Note N/A Custom Width available RFQ.
  • 1 6" ID Core available.