Entec Enflex® EA3720 Styrenic Block, TPE

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Entec Enflex® EA3720 Styrenic Block, TPE
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Styrenic TPE
Material Notes:	Product Description: 20 Shore A TPE (Styrenic Block Copolymer based) available in black and natural for injection molding and extrusion applications. This grade offers soft/tactile feel and adhesion (overmolding or co-extrusion) to ABS, PC and HIPS/PS Availability: North America Features: Acid Resistant; Alcohol Resistant; Base Resistant; Detergent Resistant; Good Adhesion; Good Colorability; Good Processability; High Elasticity; Oil Resistant; Ozone Resistant; Recyclable Material; Soft; Solvent Resistant; UV Resistant Appearance: Black; Natural Color Processing Method: Extrusion; Injection Molding Information provided by Entec Polymers
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Physical Properties	Original Value	Comments

Density	0.900 g/cc	ASTM D792
Melt Flow	3.0 g/10 min @Load 2.16 kg, Temperature 190 °C	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Shore A	21 @Time 10.0 sec	Extruded; ASTM D2240
	23 @Time 10.0 sec	Injection Molded; ASTM D2240
Tensile Strength at Break	508 psi	ASTM D412
Tensile Stress	73.0 psi @Strain 100 %	ASTM D412
Elongation at Break	750 %	ASTM D412
Tear Strength	112 pli	ASTM D624
Compression Set	18 % @Temperature 22.8 °C, Time 79200 sec	ASTM D395B
	65 % @Temperature 70.0 °C, Time 79200 sec	ASTM D395B

Thermal Properties	Original Value	Comments
Brittleness Temperature	-76.0 °F	ASTM D746

Processing Properties	Original Value	Comments
Processing Temperature	300 - 340 °F	Hopper, Extrusion
Rear Barrel Temperature	300 - 340 °F
Middle Barrel Temperature	340 - 375 °F
Front Barrel Temperature	390 - 430 °F
Nozzle Temperature	390 - 430 °F
Zone 1	340 - 375 °F
Zone 3	340 - 375 °F
Zone 5	355 - 390 °F
Adapter Temperature	355 - 410 °F
Die Temperature	355 - 410 °F
Melt Temperature	375 - 410 °F	Injection
	375 - 430 °F	Extrusion
Mold Temperature	50.0 - 120 °F	Injection
Drying Temperature	130 - 160 °F	Injection
	130 - 160 °F	Extrusion
Injection Pressure	750 - 1300 psi
Cushion	0.200 - 0.500 in
Screw Speed	50 - 200 rpm	Injection
	100 - 200 rpm	Extrusion

Descriptive Properties
Dynamic Service Temperature	194°F

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