Röhm Plexiglas® 65 Resist® Extruded Acrylic

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Röhm Plexiglas® 65 Resist® Extruded Acrylic (discontinued **)
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Extruded
Material Notes:	Description: PLEXIGLAS® XT extruded acrylic has the following properties: absolutely colorless and clear break-resistant to impact-resistant (PLEXIGLAS RESIST®) unequalled resistance to weathering and ageing very good surface; brilliant, textured or satin (PLEXIGLAS SATINICE®) sheets, tubes, round rods, multi-skin sheets, corrugated sheets, mirror sheets 1.5 to 25 mm solid sheet thickness, multi-skin sheets 16 mm and 32 mm thick standard size up to 4050 x 2050 mm (+ extra lengths) more than 25 standard colors good resistance to dilute acids limited resistance to organic solvents good resistance to alkalis easy to work, similar to hardwood easy to thermoform under optimal constant conditions easily bonded also with solvent adhesives (e.g. ACRIFIX® 116, 117) burns more or less like hardwood; very little smoke generation max. service temperature approx. 70 °C Specific Notes for this Material: Standard grades for solid sheets with higher, graded impact strength and reduced rigidity, UV absorbing. Information provided by degussa. The former Evonik Methacrylates business has been sold to Röhm GmbH (Roehm).
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Physical Properties	Metric	English	Comments

Density	1.19 g/cc	0.0430 lb/in³	ISO 1183
Water Absorption	0.525 %	0.525 %	24 hrs, 23°C from dry state; ISO 62, Method 1
Water Absorption at Saturation	2.1 %	2.1 %	Max. Weight Gain During Immersion; ISO 62, Method 1
Moisture Expansion	0.60 %	0.60 %	Possible Expansion due to heat and moisture

Mechanical Properties	Metric	English	Comments
Ball Indentation Hardness	130 MPa	18900 psi	H_961/30; ISO 2039-1
Tensile Strength at Break	50.0 MPa	7250 psi	ISO 527-2/1B/5
Elongation at Break	15 %	15 %	Nominal; ISO 527-2 1B/50
Modulus of Elasticity	2.20 GPa	319 ksi	Short Time Value; ISO 527-2/1B/1
Flexural Strength	85.0 MPa	12300 psi	5 mm/min (80x10x4 mm); ISO 178
Poissons Ratio	0.42 @Temperature 23.0 °C	0.42 @Temperature 73.4 °F	dilation speed of 5% per min; up to 2% dilation; ISO 527-1
Shear Modulus	0.775 GPa	112 ksi	Calculated
Izod Impact, Notched (ISO)	4.50 kJ/m²	2.14 ft-lb/in²	ISO 180/1A
Charpy Impact Unnotched	6.50 J/cm²	30.9 ft-lb/in²	ISO 179/1fU
Charpy Impact, Notched	0.650 J/cm²	3.09 ft-lb/in²	ISO 179/1eA
Impact	6.0	6.0	mm, Resistance to puck impact from thickness, Test Certificate No. From FMPA Stuttgart - 46/901 869/Sm/C; Similar to DIN 18032, part 3
Abrasion	30 - 40	30 - 40	% Haze, Abrasion resistance in Taber abrader test (100 rev.;5.4 N; CS-10F); ISO 9352

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+14 ohm-cm	>= 1.00e+14 ohm-cm	DIN VDE 0303, Part 3
Surface Resistance	>= 1.00e+14 ohm	>= 1.00e+14 ohm	DIN VDE 0303, Part 3

Thermal Properties	Metric	English	Comments
CTE, linear	80.0 µm/m-°C @Temperature 0.000 - 50.0 °C	44.4 µin/in-°F @Temperature 32.0 - 122 °F	DIN 53752A
Specific Heat Capacity	1.47 J/g-°C	0.351 BTU/lb-°F
Maximum Service Temperature, Air	70.0 °C	158 °F	Permanent
Deflection Temperature at 0.46 MPa (66 psi)	98.0 °C	208 °F	ISO 75
Deflection Temperature at 1.8 MPa (264 psi)	93.0 °C	199 °F	ISO 75
Vicat Softening Point	100 °C	212 °F	ISO 306, Method B 50

Optical Properties	Metric	English	Comments
Refractive Index	1.491 @Thickness 3.00 mm	1.491 @Thickness 0.118 in	clear grade; ISO 489
Transmission, Visible	91 % @Thickness 3.00 mm	91 % @Thickness 0.118 in	clear grade; DIN 5036, Part 3
UV Transmittance	0.00 % @Thickness 3.00 mm	0.00 % @Thickness 0.118 in	clear grade
Reflection Coefficient, Visible (0-1)	0.040 @Thickness 3.00 mm	0.040 @Thickness 0.118 in	clear grade, Reflection loss in the visible range (for each surface)

Processing Properties	Metric	English	Comments
Processing Temperature	>= 80.0 °C	>= 176 °F	Reverse Forming Temperature
	140 - 150 °C	284 - 302 °F	Forming Temperature

Descriptive Properties
Adsorption in the Visible Range	Max 0.05%		clear grade, 3 mm
Fire Rating	B 2, Normally Flammable		DIN 4102
Min Cold Bending Radius	210 x thickness
Total Energy Transmittance g	85%		clear grade, 3 mm, 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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