Eastman Provista ST Copolymer

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Eastman Provista ST Copolymer
Categories:	Polymer; Thermoplastic; Polyester, TP
Material Notes:	Provista Copolymer ST is a resin specifically developed for profile extrusion where high clarity and gloss, toughness, and processability are critical. Provista Copolymer ST is a second-generation material that complements Provista by offering similar features, while providing greater toughness. Provista Copolymer ST is ideal in applications that place greater physical demands on the profile. Applications/Uses Packaging tubes Pricing channels Signage channels Plastic angle moldings Profiles Store fixtures Key Attributes Ease of processing Excellent chemical resistance Meets FDA regulations for food contact Sparkling clarity and high gloss Toughness with flexibility
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Physical Properties	Original Value	Comments

Specific Gravity	1.25 g/cc	ASTM D792
Linear Mold Shrinkage	0.0030 cm/cm	ASTM D955

Mechanical Properties	Original Value	Comments
Hardness, Rockwell R	105	ASTM D785
Tensile Strength at Break	48.0 MPa	ASTM D638
Tensile Strength, Yield	47.0 MPa	ASTM D638
Elongation at Break	300 %	ASTM D638
Elongation at Yield	5.0 %	ASTM D638
Tensile Modulus	1.90 GPa	ASTM D638
Flexural Strength	65.0 MPa	ASTM D790
Flexural Modulus	1.90 GPa	ASTM D790
Izod Impact, Notched	0.630 J/cm @Temperature -40.0 °C	ASTM D256
	NB @Temperature 23.0 °C	ASTM D256
Izod Impact, Unnotched	NB	ASTM D4812
	NB @Temperature -40.0 °C	ASTM D4812
Puncture Energy	41.0 J	Puncture Resistance @Max Load, 0°C; ASTM D3763
	41.0 J	Puncture Resistance @Max Load, 23°C; ASTM D3763
	39.0 J @Temperature -40.0 °C	Puncture Resistance at Max Load; ASTM D3763

Thermal Properties	Original Value	Comments
Deflection Temperature at 0.46 MPa (66 psi)	73.0 °C	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	63.0 °C	ASTM D648
Vicat Softening Point	85.0 °C	ASTM D1525

Optical Properties	Original Value	Comments
Haze	1.3 %	ASTM D1003
Gloss	143 %	at 60°; ASTM D2457
Transmission, Visible	87 %	Regular Transmittance; ASTM D1003
	91 %	Total Transmittance; ASTM D1003

Descriptive Properties
Color, CIE a*	-0.2	VGAS-A-AN-G-RS-001
Color, CIE b*	0.6	VGAS-A-AN-G-RS-001
Color, CIE L*	95	VGAS-A-AN-G-RS-001

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PE9094 / 35150

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