Röhm ACRYLITE PLUS® ZK-X Impact Acrylic Polymer

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Röhm ACRYLITE PLUS® ZK-X Impact Acrylic Polymer (discontinued **)
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, General Purpose, Molded; Acrylic, Heat Resistant, Molded; Acrylic, Impact Modified, Molded
Material Notes:	ACRYLITE PLUS® ZK-X impact acrylic polymer is an amorphous, impact-modified thermoplastic molding and extrusion compound based on polymethyl methacrylate (PMMA). Typical properties of ACRYLITE PLUS® impact acrylic polymers are high weather resistance, high light transmission, improved resistance to stress cracking, good melt flow rate, and easy to color. The special properties of ACRYLITE PLUS ZK-X polymer are medium impact/break resistance and strength, low melt flow rate, and high heat resistance. Application: Used for injection molded parts and extruded sheet. Information Provided by Evonik CYRO. The former Evonik Methacrylates business has been sold to Röhm (Roehm) GmbH.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.16 g/cc	1.16 g/cc	ASTM D792
Bulk Density	0.710 g/cc	0.0257 lb/in³	ASTM D1895
Water Absorption at Saturation	0.30 %	0.30 %	ASTM D570
Linear Mold Shrinkage	0.0040 - 0.0070 cm/cm	0.0040 - 0.0070 in/in	ASTM D955
Melt Flow	1.0 g/10 min @Load 3.80 kg, Temperature 230 °C	1.0 g/10 min @Load 8.38 lb, Temperature 446 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	70	70	ASTM D785
Tensile Strength at Break	64.1 MPa	9300 psi	ASTM D638
Elongation at Break	25 %	25 %	ASTM D638
Elongation at Yield	5.0 %	5.0 %	ASTM D638
Tensile Modulus	2.55 GPa	370 ksi	ASTM D638
Flexural Strength	103 MPa	15000 psi	ASTM D790
Flexural Modulus	2.41 GPa	350 ksi	ASTM D790
Izod Impact, Notched	0.320 J/cm @Temperature 0.000 °C	0.600 ft-lb/in @Temperature 32.0 °F	1/4" bar; ASTM D256
	0.454 J/cm @Temperature 23.0 °C	0.850 ft-lb/in @Temperature 73.4 °F	1/4" bar; ASTM D256

Thermal Properties	Metric	English	Comments
CTE, linear	72.0 µm/m-°C @Temperature 0.000 - 156 °C	40.0 µin/in-°F @Temperature 32.0 - 312 °F	ASTM D696
Deflection Temperature at 1.8 MPa (264 psi)	93.3 °C @Thickness 6.35 mm	200 °F @Thickness 0.250 in	Annealed; ASTM D648
Vicat Softening Point	110 °C	230 °F	ASTM D1525

Optical Properties	Metric	English	Comments
Haze	<= 1.0 %	<= 1.0 %	ASTM D1003
Yellow Index	<= 0.30 %	<= 0.30 %	ASTM D1925
Transmission, Visible	91.5 %	91.5 %	ASTM D1003

Processing Properties	Metric	English	Comments
Middle Barrel Temperature	232 - 249 °C	450 - 480 °F
Melt Temperature	232 - 249 °C	450 - 480 °F
Mold Temperature	43.3 - 82.2 °C	110 - 180 °F
Drying Temperature	82.2 °C	180 °F
Dry Time	3 - 4 hour	3 - 4 hour

**
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PCYR00059 / 101048

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