PMMA Film

PMMA Film provides high transparency, good UV resistance, and strong dimensional stability in a thin-sheet format, making it a widely used material in optics, electronics, and protective coatings. Its flexibility and ability to be uniformly cast ensure excellent performance in applications such as optical filters, flexible displays, and solar panel encapsulants. Industries also employ PMMA films in microfluidic devices, sensor substrates, and biomedical packaging. Research uses include studies in photonics, polymeric barrier materials, and optical coatings for laser and LED systems. The film form maximizes surface area while maintaining optical integrity, allowing precise integration into both experimental and commercial technologies. Its adaptability and performance ensure PMMA films remain a cornerstone material for next-generation optical and electronic innovations.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Foil

Thickness		±20%

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