Asahi Kasei DELPET™ 981J Acrylic (PMMA), Heat Resistant

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Asahi Kasei DELPET™ 981J Acrylic (PMMA), Heat Resistant
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Heat Resistant, Molded
Material Notes:	DELPET™ has excellent transparency, surface hardness and weatherability. Main applications of DELPET™ are outer/inner parts for automobile, optical goods, industrial and general parts/goods. Information provided by Asahi Kasei Corp.
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Physical Properties	Metric	English	Comments

Density	1.20 g/cc	0.0434 lb/in³	1183
Water Absorption	0.30 % @Temperature 23.0 °C	0.30 % @Temperature 73.4 °F	ISO 62 Method 1
Linear Mold Shrinkage	0.0020 - 0.0060 cm/cm	0.0020 - 0.0060 in/in	AsahiKasei Method
Melt Flow	1.8 g/10 min @Load 3.80 kg, Temperature 230 °C	1.8 g/10 min @Load 8.38 lb, Temperature 446 °F	1133, cond 13
Spiral Flow	28.0 cm @Thickness 2.00 mm, Pressure 75.0 MPa	11.0 in @Thickness 0.0787 in, Pressure 10900 psi	cylinder temp 250°C, mold temp 60°C; AsahiKasei Method

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	103	103	2039-2
Tensile Strength at Break	77.0 MPa	11200 psi	527-2/1A/5
Elongation at Break	5.0 %	5.0 %	527-2/1A/5
Tensile Modulus	3.40 GPa	493 ksi	527-2/1A/1
Flexural Strength	130 MPa	18900 psi	178
Flexural Modulus	3.40 GPa	493 ksi	178
Charpy Impact Unnotched	1.70 J/cm²	8.09 ft-lb/in²	179/1eU
Charpy Impact, Notched	0.120 J/cm²	0.571 ft-lb/in²	179/1eA

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	110 °C	230 °F	Deflection Temperature, load not reported; ISO 75-1
Vicat Softening Point	116 °C	241 °F	306 B50

Optical Properties	Metric	English	Comments
Refractive Index	1.50	1.50	489
UV Transmittance	92 %	92 %	13468-1

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PASAHI8023 / 221050

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