Röhm CYROLITE G-20 Acrylic-Based Multipolymer Molding Compound

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Röhm CYROLITE G-20 Acrylic-Based Multipolymer Molding Compound
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Impact Modified, Molded
Material Notes:	CYROLITE G-20 compound is a impact-modified acrylic-based multipolymer for molding and extrusion of medical applications. Typical properties of CYROLITE G-20 compound are: excellent chemical resistance to fats and oils excellent bonding and welding capabilities excellent bonding to PVC tubing good impact strength good light transmission good heat resistance good resistance to EtO, gamma and E-beam sterilization Applications: Used for injection molding and extrusion of medical devices, medical packaging, as well as food packaging, toys and appliance parts. Information Provided by Evonik CYRO. The former Evonik Methacrylates business has been sold to Röhm (Roehm) GmbH.
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Physical Properties	Original Value	Comments

Density	1.11 g/cc	ASTM D792
Water Absorption	<= 0.30 %	ASTM D570
Viscosity	975000 cP @Shear Rate 100 1/s, Temperature 240 °C	Approximate value
Linear Mold Shrinkage	0.0040 - 0.0070 cm/cm	ASTM D551
Melt Flow	2.2 g/10 min @Load 5.00 kg, Temperature 230 °C	ASTM D1238
Spiral Flow	46.0 cm	215°C

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	39	ASTM D785
Tensile Strength, Ultimate	47.0 MPa	ASTM D638
Elongation at Break	6.7 %	ASTM D638
Elongation at Yield	4.0 %	ASTM D638
Tensile Modulus	2.20 GPa	ASTM D638
Flexural Yield Strength	72.0 MPa	ASTM D790
Flexural Modulus	2.30 GPa	ASTM D790
Compressive Yield Strength	79.0 MPa	ASTM D695
Izod Impact, Notched	0.590 J/cm @Thickness 6.35 mm, Temperature 0.000 °C	bar; ASTM D256
	1.01 J/cm @Diameter 6.35 mm	bar; ASTM D256

Thermal Properties	Original Value	Comments
CTE, linear	92.5 µm/m-°C @Temperature 0.000 - 100 °C
Specific Heat Capacity	1.30 J/g-°C @Temperature 25.0 °C
	1.90 J/g-°C @Temperature 100 °C
	2.30 J/g-°C @Temperature 175 °C
Thermal Conductivity	0.220 W/m-K
Deflection Temperature at 1.8 MPa (264 psi)	86.0 °C	Annealed; ASTM D648
Vicat Softening Point	101 °C	ASTM D1525
Flammability, UL94	HB
Oxygen Index	19 %	ASTM D2863

Optical Properties	Original Value	Comments
Refractive Index	1.515	ASTM D542
Haze	7.0 %	ASTM D1003
Yellow Index	-0.300 %
Transmission, Visible	90 %	ASTM D1003

Processing Properties	Original Value	Comments
Melt Temperature	216 - 249 °C

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