REXtac Rextac® RT 2280 Amorphous Polyalphaolefin (APAO)

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REXtac Rextac® RT 2280 Amorphous Polyalphaolefin (APAO)
Categories:	Polymer; Thermoplastic; Polyalphaolefin; Polyolefin
Material Notes:	Adhesive and Sealant Grade. Description: Ethylene copolymer and FDA compliant Features: Good heat resistance and flexibility, short open time, and high viscosity Applications: Component of hot melt adhesives, sealants and specialty products Other Properties: Ring and Ball Softening Point (ASTM E 28): 146°C. Needle Penetration (ASTM D 1321): 15 mm. Shear Adhesion Failure Temperature (SAFT), Kraft/Kraft (Huntsman Method): 113°C. Open Time, Kraft/Kraft (Huntsman Method): 10 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	Original Value	Comments

Density	0.860 g/cc	ASTM D 792
Melt Density	0.740 g/cc @Temperature 190 °C
	0.740 g/cc @Temperature 190 °C
Viscosity	8000 cP @Temperature 190 °C	Melt; ASTM D-3236
	8000 cP @Temperature 190 °C	Melt

Mechanical Properties	Original Value	Comments
Tensile Strength	1.10 MPa	ASTM D-638, D-412
	1.10 MPa

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	113 °C	Shear Adhesion Failure Temperature (SAFT), Kraft/Kraft; Huntsman Method
	113 °C	Shear Adhesion Failure Temperature (SAFT), Kraft/Kraft; Huntsman Method
Glass Transition Temp, Tg	-22.0 °C	ASTM D-3418
	-22.0 °C
Flash Point	>= 235 °C	COC; ASTM D 93
	>= 235 °C	COC; ASTM D 93
Ring & Ball Softening Point	146 °C	ASTM E 28
	146 °C	ASTM E 28

Processing Properties	Original Value	Comments
Pot Life	10.0 sec	Open Time; ASTM D-4497
	10.0 sec	Open Time, Kraft/Kraft; Huntsman Method

Compliance Properties	Original Value	Comments
FDA	Yes
	Yes

Descriptive Properties
Needle Penetration (mm)	15	ASTM D 1321

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