Röhm ACRYLITE® Resist ZK5BR Acrylic polymer

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Röhm ACRYLITE® Resist ZK5BR Acrylic polymer
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Extruded
Material Notes:	ACRYLITE® Resist ZK5BR polymer is an amorphous, impact-modified thermoplastic molding and extrusion compound based on polymethyl methacrylate (PMMA). Typical properties of ACRYLITE® acrylic polymers are: high weather resistance high light transmission improved resistance to stress cracking good melt flow rate easy to color The special properties of ACRYLITE® Resist ZK-6 polymer are: medium impact/break resistance and strength brilliant optical clarity low melt flow rate high heat resistance AMECA listed Application: Used for injection molded parts. Information provided by Roehm America LLC
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Physical Properties	Original Value	Comments

Specific Gravity	1.18 g/cc	ASTM D792
Bulk Density	0.710 g/cc	ASTM D1895
Water Absorption	<= 0.30 %	ASTM D570
Linear Mold Shrinkage	0.0040 - 0.0070 cm/cm	ASTM D955
Melt Flow	3.4 g/10 min @Load 3.80 kg, Temperature 230 °C	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	70	ASTM D785
Tensile Strength	62.0 MPa	ASTM D638
Elongation at Break	30 %	ASTM D638
Elongation at Yield	5.0 %	ASTM D638
Tensile Modulus	2.50 GPa	ASTM D638
Flexural Strength	88.7 MPa	ASTM D790
Flexural Modulus	2.30 GPa	ASTM D790
Izod Impact, Notched	26.3 J/m @Thickness 6.35 mm, Temperature >=0.000 °C	ASTM D256
	41.6 J/m @Thickness 6.35 mm, Temperature >=23.0 °C	ASTM D256

Thermal Properties	Original Value	Comments
CTE, linear	72.0 µm/m-°C @Temperature 0.000 - 100 °C	ASTM D696
Deflection Temperature at 1.8 MPa (264 psi)	99.0 °C @Thickness 6.35 mm	Annealed; ASTM D648
Vicat Softening Point	103 °C	264 psi; ASTM D1525

Optical Properties	Original Value	Comments
Haze	<= 2.0 %	ASTM D1003
Yellow Index	<= 0.30 %	ASTM D1925
Transmission, Visible	>= 90 %	ASTM D1003

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PROHM9329 / 319946

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