Celanese Vandar® 2500 PBT, Unfilled

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Celanese Vandar® 2500 PBT, Unfilled
Categories:	Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT)
Material Notes:	Vandar 2500 is an unfilled polyester alloy which exhibits excellent toughness and impact strength. It is specially designed to offer excellent chemical resistance, good colorability and dimensional stability. Information provided by Celanese
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Physical Properties	Original Value	Comments

Specific Gravity	1.25 g/cc	ASTM D792
Density	1.25 g/cc	ISO 1183
Water Absorption	0.10 % @Temperature 22.8 °C	24hr immersion; ASTM D570
Linear Mold Shrinkage, Flow	0.017 - 0.022 cm/cm	ASTM D955
	0.017 - 0.022 cm/cm	ISO 294-4
Linear Mold Shrinkage, Transverse	0.017 - 0.022 cm/cm	ISO 294-4
Melt Flow	12 g/10 min	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	104	ISO 2039-2
Tensile Strength, Yield	35.0 MPa	50mm/min; ISO 527-2/1A
	4900 psi	ASTM D638
Elongation at Break	>= 50 %
	100 %	ASTM D638
Elongation at Yield	5.0 %	50mm/min; ISO 527-2/1A
Tensile Modulus	1450 MPa	50mm/min; ISO 527-2/1A
Flexural Strength	50.0 MPa	ISO 178
	7200 psi	ASTM D790
Flexural Modulus	1500 MPa	ISO 178
	210000 psi	ASTM D790
Izod Impact, Notched	NB	ASTM D256
	2.50 ft-lb/in @Temperature -28.9 °C	ASTM D256
Izod Impact, Notched (ISO)	NB	ISO 180/1A
Charpy Impact Unnotched	203 kJ/m²	ISO 179/1eU
	168 kJ/m² @Temperature -30.0 °C	ISO 179/1eU
Charpy Impact, Notched	88.0 kJ/m²	ISO 179/1eA
	9.00 kJ/m² @Temperature -30.0 °C	ISO 179/1eA

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	130 µm/m-°C	ISO 11359-2
CTE, linear, Transverse to Flow	134 µm/m-°C	ISO 11359-2
Melting Point	225 °C	10°C/min; ISO 11357-1,-2,-3
	437 °F	ASTM D3418
Deflection Temperature at 0.46 MPa (66 psi)	125 °C	ISO 75-1, -2
	260 °F	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	50.0 °C	ISO 75-1, -2
	125 °F	ASTM D648
Glass Transition Temp, Tg	70.0 °C	ISO 11357-1,-2,-3
Flammability, UL94	HB

Processing Properties	Original Value	Comments
Processing Temperature	65.0 - 96.0 °C	cavity
	250 - 260 °C	hot runner
Feed Temperature	230 - 240 °C
Zone 1	230 - 240 °C
Zone 2	235 - 250 °C
Zone 3	235 - 250 °C
Zone 4	240 - 260 °C
Die Temperature	240 - 260 °C
Melt Temperature	235 - 260 °C
	260 °C	ISO 294
Mold Temperature	82.0 °C	ISO 294
Injection Velocity	300 mm/sec	ISO 294
Drying Temperature	120 - 130 °C
Dry Time	4.00 hour
Moisture Content	<= 0.020 %
Hold Pressure	86.0 MPa	ISO 294

Descriptive Properties
Injection molding	Yes
Injection speed	medium-fast
Processing conditions acc. ISO	7792-2

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