Röhm Plexiglas® 99560 Superclear Extruded PMMA Sheet

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Röhm Plexiglas® 99560 Superclear Extruded PMMA Sheet (discontinued **)
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Extruded
Material Notes:	Description: PLEXIGLAS® Superclear 99560 is an extruded PMMA product that has been developed for applications with highest demands on optical and surface quality. It has no observable haze, a very smooth surface and no light absorption. The material is best suited for hard coating. Information provided by degussa. The former Evonik Methacrylates business has been sold to Röhm GmbH (Roehm).
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Physical Properties	Original Value	Comments

Density	1.19 g/cc	ISO 1183
Water Absorption at Saturation	2.1 %	Max. Weight Gain During Immersion; ISO 62, Method 1
Moisture Vapor Transmission	56.0 cc-mm/m²-24hr-atm

Mechanical Properties	Original Value	Comments
Ball Indentation Hardness	175 MPa	H_961/30; ISO 2039-1
Tensile Strength at Break	72.0 MPa	ISO 527-2/1B/5
	100 MPa @Temperature -40.0 °C	ISO 527-2/1B/5
Tensile Strength, Ultimate	35.0 MPa @Temperature 70.0 °C	ISO 527-2/1B/5
Elongation at Break	4.5 %	ISO 527-2/1B/5
Modulus of Elasticity	3.30 GPa	Short Term Value; ISO 527-2/1B/1
Flexural Strength	105 MPa	80x10x4 mm; ISO 178
Compressive Yield Strength	103 MPa	ISO 604
Izod Impact, Notched (ISO)	1.60 kJ/m²	ISO 180/1A
Charpy Impact Unnotched	1.50 J/cm²	ISO 179/1fU
Coefficient of Friction	0.45	steel/plastic
	0.50	plastic/steel
	0.80	plastic/plastic
Abrasion	20 - 30	% Haze, Abrasion resistance in Taber abrader test (100 rev.;5.4 N; CS-10F); ISO 9352

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 1.00e+15 ohm-cm	DIN VDE 0303/3
Surface Resistance	5.00e+13 ohm	DIN VDE 0303/3
Dielectric Constant	2.8 @Frequency 100000 Hz	DIN VDE 0303, Part 4
	3.7 @Frequency 50 Hz	DIN VDE 0303, Part 4
Dielectric Strength	30.0 kV/mm	DIN VDE 0303, Part 2
Dissipation Factor	0.030 @Frequency 100000 Hz	DIN VDE 0303, Part 4
	0.060 @Frequency 50 Hz	DIN VDE 0303, Part 4
Comparative Tracking Index	600 V	DIN VDE 0303

Thermal Properties	Original Value	Comments
CTE, linear	70.0 µm/m-°C @Temperature 0.000 - 50.0 °C	DIN 53752A
Specific Heat Capacity	1.47 J/g-°C
Thermal Conductivity	0.190 W/m-K	DIN 52612
Maximum Service Temperature, Air	70.0 °C	Permanent
	180 °C	IR Radiator
Deflection Temperature at 0.46 MPa (66 psi)	95.0 °C	ISO 75
Deflection Temperature at 1.8 MPa (264 psi)	90.0 °C	ISO 75
Vicat Softening Point	102 °C	ISO 306, Method B 50
Flammability, UL94	HB @Thickness 1.60 mm
Flash Point	430 °C	Ignition Temperature; DIN 51794

Optical Properties	Original Value	Comments
Refractive Index	1.491	ISO 483
Haze	<= 0.20 %	ASTM D1003
Transmission, Visible	92 %	DIN 5036, Part 3
UV Transmittance	<= 1.0 %
Reflection Coefficient, Visible (0-1)	0.040	Reflection loss in the visible range (for each surface)

Processing Properties	Original Value	Comments
Processing Temperature	150 - 160 °C	Forming Temperature

Descriptive Properties
Absorption in the Visible Range	Max 0.05%
Number of Inclusions (0.1 mm to 0.25 mm)	Max 30 per m²	Magnification Lens
Number of Inclusions (0.25 mm to 0.65 mm)	Max 7 per m²	Magnification Lens
Number of Inclusions (0.65 mm to 1.65 mm)	Max 1 per m²	Magnification Lens
Pencil Hardness	3H	ASTM D3363, ISO 15184
Permeability to Air	8.3x10^-15 g cm/cm² h Pa
Permeability to CO₂	1.1x10^-13 g cm/cm² h Pa
Permeability to N₂	4.5x10^-15 g cm/cm² h Pa
Permeability to O₂	2x10^-14 g cm/cm² h Pa
Sound Velocity	2700-2800 m/s	at room temperature
Total Energy Transmittance	85%	DIN EN 410
U Value for 10mm	4.4 W/m²K	DIN 4701
U Value for 1mm	5.8 W/m²K	DIN 4701
U Value for 3mm	5.6 W/m²K	DIN 4701
U Value for 5mm	5.3 W/m²K	DIN 4701

**
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