Technical Data Sheet
Safety Data Sheet

IR Transmitting PMMA Film

IR Transmitting PMMA films are acrylic films that allow infrared light to pass through while blocking visible light. With 19 variations to choose from, they are well-suited for applications such as infrared spectroscopy, thermal imaging cameras, and infrared sensors. As an acrylic material, they can be machined, thermoformed or cemented for custom applications needing an infrared transparent window or filter.
Thickness: 0.5mm
Length 1: 100mm
Length 2: 100mm
Technical Name: Polymethylmethacrylate
Grade: IR Transmitting
Formula: PMMA, Acrylic
Density: 1.185g/cm³
CAS Number: 9011-14-7
Production Method: Cast
Colour: Dark Red / Black
UOM Code: 638-327-94
SKU: 1000127120
Product Code: ME30-SH-000107


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Thickness ±20%
Technical Data Sheet
Safety Data Sheet

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Material Properties for Polymers

Physical Properties
Element Value
Abbe number 57.2
Flammability HB
Radiation resistance Fair
Refractive index 1.49
Resistance to Ultra-violet Good
Limiting oxygen index( % ) 17-20
Water absorption - over 24 hours( % ) 0.2
Density( gcm⁻³ ) 1.19
Chemical Resistance
Element Value
Acids - concentrated Good-Poor
Acids - dilute Good-Poor
Alcohols Good-Poor
Alkalis Good
Aromatic hydrocarbons Poor
Greases and Oils Good
Halogenated Hydrocarbons Poor
Halogens Poor
Ketones Poor
Electrical Properties
Element Value
Dielectric constant @1MHz 2.6
Dissipation factor @ 1MHz 0.014
Dielectric strength( kV mm⁻¹ ) 15
Surface resistivity( Ohm/sq ) 10¹⁴
Volume resistivity( Ohmcm ) 2-14 x 10¹⁵
Mechanical Properties
Element Value
Hardness - Rockwell M92-100
Poisson's ratio 0.35-0.4
Elongation at break( % ) 2.5-4
Tensile modulus( GPa ) 2.4-3.3
Izod impact strength( J m⁻¹ ) 16-32
Tensile strength( MPa ) 80
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 105
Heat-deflection temperature - 1.8MPa( C ) 95
Lower working temperature( C ) -40
Upper working temperature( C ) 50-90
Specific heat( J K⁻¹ kg⁻¹ ) 1400-1500
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.17-0.19@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 70-77
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