REXtac Rextac® RT 2304 Amorphous Polyalphaolefin (APAO)

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REXtac Rextac® RT 2304 Amorphous Polyalphaolefin (APAO)
Categories:	Polymer; Thermoplastic; Polyalphaolefin; Polyolefin
Material Notes:	Adhesive and Sealant Grade. Description: Ethylene copolymer and FDA compliant Features: Excellent flexibility, wetting characteristics, and medium open time Applications: Component of hot melt adhesives, sealants and specialty products Other Properties: Ring and Ball Softening Point (ASTM E 28): 138°C. Needle Penetration (ASTM D 1321): 25 mm. Shear Adhesion Failure Temperature (SAFT), Kraft/Kraft (Huntsman Method): 99°C. Open Time, Kraft/Kraft (Huntsman Method): 20 sec. Melt Density (190°C; Huntsman Method): 0.74 g/cc. Flashpoint, COC (ASTM D 93): >235°C. Information provided by Huntsman Corporation.
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Physical Properties	Metric	English	Comments

Density	0.860 g/cc	0.0311 lb/in³	ASTM D 792
Melt Density	0.740 g/cc @Temperature 190 °C	0.0267 lb/in³ @Temperature 374 °F
	0.740 g/cc @Temperature 190 °C	0.0267 lb/in³ @Temperature 374 °F
Viscosity	400 cP @Temperature 190 °C	400 cP @Temperature 374 °F	Melt
	400 cP @Temperature 190 °C	400 cP @Temperature 374 °F	Melt

Mechanical Properties	Metric	English	Comments
Tensile Strength	0.500 MPa	72.5 psi	ASTM D-638, D-412
	0.500 MPa	72.5 psi

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	99.0 °C	210 °F	Shear Adhesion Failure Temperature (SAFT), Kraft/Kraft; Huntsman Method
	99.0 °C	210 °F	Shear Adhesion Failure Temperature (SAFT), Kraft/Kraft; Huntsman Method
Glass Transition Temp, Tg	-29.0 °C	-20.2 °F	ASTM D-3418
	-29.0 °C	-20.2 °F
Flash Point	>= 235 °C	>= 455 °F	COC; ASTM D 93
	>= 235 °C	>= 455 °F	COC; ASTM D 93
Ring & Ball Softening Point	141 °C	286 °F	ASTM E 28
	141 °C	286 °F	ASTM E 28

Processing Properties	Metric	English	Comments
Pot Life	0.333 min	0.333 min	Open Time; ASTM D-4497
	0.333 min	0.333 min	Open Time, Kraft/Kraft; Huntsman Method

Compliance Properties	Metric	English	Comments
FDA	Yes	Yes
	Yes	Yes

Descriptive Properties
Needle Penetration (mm)	25		ASTM D 1321

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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