Röhm Plexiglas® df21 8N Molding Compound

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Röhm Plexiglas® df21 8N Molding Compound
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, General Purpose, Molded
Material Notes:	Description: PLEXIGLAS® df21 8N, PLEXIGLAS® df22 8N and PLEXIGLAS® df23 8N molding compounds based on PLEXIGLAS® 8N are characterized by diffuse scattering of light. Besides showing the familiar properties of standard PLEXIGLAS® molding compound, such as excellent weatherability high surface hardness and scratch resistance PLEXIGLAS® df21 8N, PLEXIGLAS® df22 8N and PLEXIGLAS® df23 8N are special in that they combine good diffusing power with excellent light transmission. PLEXIGLAS df molding compounds are the optimal choice, when a combination of high light scattering and excellent light transmission is required. Both, PLEXIGLAS df22 8N and PLEXIGLAS df23 8N are well designed for lamp covers, projected areas and similar applications. For displays and backlight units PLEXIGLAS df21 8N is the favored material. 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
Melt Flow	2.975 g/10 min @Load 3.80 kg, Temperature 230 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	71.0 MPa	5 mm/min; ISO 527
Elongation at Break	4.5 %	5 mm/min; ISO 527
Tensile Modulus	3.30 GPa	1 mm/min; ISO 527
Charpy Impact Unnotched	1.80 J/cm² @Temperature 23.0 °C	ISO 179

Thermal Properties	Original Value	Comments
CTE, linear	63.0 µm/m-°C @Temperature 0.000 - 50.0 °C	ASTM E831
Deflection Temperature at 0.46 MPa (66 psi)	103 °C	ISO 75
Deflection Temperature at 1.8 MPa (264 psi)	98.0 °C	ISO 75
Vicat Softening Point	109 °C	B50; ISO 306
Glass Transition Temp, Tg	111 °C	IEC 10006
Glow Wire Test	700 °C	IEC 695-2

Optical Properties	Original Value	Comments
Transmission, Visible	87 %	Transmission Factor; DIN 5036

Processing Properties	Original Value	Comments
Processing Temperature	220 - 260 °C	Cylinder Temperature
Melt Temperature	220 - 260 °C
Mold Temperature	60.0 - 90.0 °C
Drying Temperature	<= 95.0 °C	Predrying
Dry Time	2 - 3 hour	Desiccant-type drier

Descriptive Properties
Energy Half Angle	9°	IEC 695-2
Fire Rating	B2	DIN 4102

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