REXtac Rextac® RT 5219 Amorphous Polyalphaolefin (APAO)

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REXtac Rextac® RT 5219 Amorphous Polyalphaolefin (APAO) (discontinued **)
Categories:	Polymer; Thermoplastic; Polyalphaolefin; Polyolefin
Material Notes:	Modified Bitumen Roofing Grade. Description: High molecular weight REXtac, ethylene copolymer, and FDA compliant Features: High ethylene level and low crystallinity Applications: Component of modified bitumen roofing systems Other Properties: Ring and Ball Softening Point (ASTM E 28): 132°C. Needle Penetration (ASTM D 1321): 28 mm. 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	Huntsman Method
	0.740 g/cc @Temperature 190 °C	0.0267 lb/in³ @Temperature 374 °F	Huntsman Method
Viscosity	157000 cP @Temperature 190 °C	157000 cP @Temperature 374 °F	melt viscosity; ASTM D 3236

Thermal Properties	Metric	English	Comments
Glass Transition Temp, Tg	-33.9 °C	-29.0 °F	ASTM D3417
Flash Point	>= 235 °C	>= 455 °F	COC; ASTM D 93
	>= 235 °C	>= 455 °F	COC; ASTM D 93
Ring & Ball Softening Point	132 °C	270 °F	ASTM E 28
	132 °C	270 °F	ASTM E 28

Compliance Properties	Metric	English	Comments
FDA	Yes	Yes
	Yes	Yes

Descriptive Properties
Needle Penetration (mm)	28		ASTM D 1321

**
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PHUN30 / 47650

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