A. Schulman Diamond Centrex® 825 Sheet Extrusion Grade

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A. Schulman Diamond Centrex® 825 Sheet Extrusion Grade (discontinued **)
Categories:	Polymer; Thermoplastic; ASA Polymer
Material Notes:	Centrex 825 resin is a high-gloss, high-impact grade of ASA (acrylonitrile-styrene-acrylate) with good resistance to weather aging. It has good melt strength for extrusion and thermoforming, and it can be easily coextruded. The recommended substrate is ABS (acrylonitrile-butadiene-styrene) resin. Applications: Typical applications for Centrex 825 resin includes exterior parts requiring high gloss, such as spas; marine components, boat hulls and decks; doors, covers, and trim for recreational vehicles; swimming pool steps; and fiberglass-reinforced plastic replacements. As with any product, use of Centrex 825 resin in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability. A. Schulman has acquired Network Polymers & Diamond Polymers.
Key Words:	Weatherable Polymer
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Physical Properties	Original Value	Comments

Specific Gravity	1.05 g/cc	ASTM D792
Melt Flow	8.0 g/10 min @Load 10.0 kg, Temperature 220 °C	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Rockwell R	97	ASTM D785
Tensile Strength, Yield	33.8 MPa	chs 2.0 in/min; ASTM D638
Tensile Modulus	1700 MPa	chs 2.0 in/min; ASTM D638
Flexural Strength	50.3 MPa	chs 0.05 in/min; ASTM D790
Flexural Modulus	1700 MPa	tangent; chs 0.05 in/min; ASTM D790
Izod Impact, Notched	53.0 J/m @Thickness 3.17 mm, Temperature -30.0 °C	ASTM D256
	107 J/m @Thickness 3.17 mm, Temperature -18.0 °C	ASTM D256
	214 J/m @Thickness 3.17 mm, Temperature 23.0 °C	ASTM D256
Impact Test	12.0 J @Temperature -30.0 °C	ASTM D3763
	27.0 J @Temperature -18.0 °C	ASTM D3763
	38.0 J @Temperature 23.0 °C	ASTM D3763

Thermal Properties	Original Value	Comments
CTE, linear	99.0 µm/m-°C	ASTM D696
Deflection Temperature at 1.8 MPa (264 psi)	78.0 °C	0.125";; ASTM D648
Flammability, UL94	HB

Optical Properties	Original Value	Comments
Gloss	80 - 90 %	Formed; 60°; ASTM D523
	90 - 100 %	Sheet; 60°; ASTM D523

**
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PDIAM356 / 126447

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