Riteflex® 655A

About
Riteflex 655A is a thermoplastic polyester elastomer with nominal shore D hardness of 55 and medium modulus.&&

MECHANICAL	Nominal value	Unit	Test method
Shore hardness
Shore D, 15 seconds	55		ISO 868
Shaw’s D	55		ASTM D2240
Tensile modulus	175	MPa	ISO 527-2/1A/1
23℃	241	MPa	ASTM D638
tensile strength
Fracture, 23 ℃	25.2	MPa	ASTM D638
fracture	30.0	MPa	ISO 527-2/1A/50
yield	15.0	MPa	ISO 527-2/1A/50
5% strain	8.00	MPa	ISO 527-2
10% strain	12.0	MPa	ISO 527-2
50% strain	15.0	MPa	ISO 527-2/1A/50
Tensile strain
Fracture, 23 ℃	430	%	ASTM D638
fracture	> 300	%	ISO 527-2/1A/50
yield	28	%	ISO 527-2/1A/50
Bending modulus			ISO 178
-40℃	700	MPa	ISO 178
23℃	175	MPa	ISO 178
100℃	86.0	MPa	ISO 178
bending strength			ISO 178
3.50% strain	7.00	MPa	ISO 178
23℃	10.0	MPa	ISO 178
Ross Twist Test	> 1.0E+6	Cycles	Internal Method

elastic body	Nominal value	Unit	Test method
tear strength	212	kN/m	ASTM D624
MD	120	kN/m	ISO 34-1
Compression deformation
23℃	< 1.0	%	ASTM D395
Basho’s elasticity
—	48	%	Internal Method
—	48	%	ASTM D2632

IMPACT	Nominal value	Unit	Test method
Charpy Notched Impact Strength			ISO 179/1eA
-30 ℃, localized fracture	65	kJ/m²	ISO 179/1eA
23 ℃, localized fracture	150	kJ/m²	ISO 179/1eA
Charpy Unnotch Impact strength			ISO 179/1eU
-30℃	No Break		ISO 179/1eU
23℃	No Break		ISO 179/1eU
Impact strength of cantilever beam notch			ISO 180/1A
-30℃	No Break		ISO 180/1A
23℃	No Break		ISO 180/1A

THERMAL	Nominal value	Unit	Test method
Hot deformation temperature
1.8 MPa, unannealed	48.0	℃	ISO 75-2/A
0.45 MPa, unannealed	75.0	℃	ISO 75-2/B
Glass transition temperature	-56.7	℃	ASTM D3418
Vicat Softening Temp	181	℃	ASTM D1525
Melting peak temperature	200	℃	ASTM D3418
Melting temperature	200	℃	ISO 11357-3
Linear coefficient of thermal expansion
TD	1.7E-4	1/℃	ISO 11359-2
MD	2.0E-4	1/℃	ISO 11359-2

Electrical performance	Nominal value	Unit	Test method
Surface resistivity	4.0E+15	ohms	IEC 60093
Volume resistivity	5.0E+12	ohms·cm	ASTM D257
Volume resistivity	4.0E+12	ohms·cm	IEC 60093
Dielectric strength	14	kV/mm	ASTM D149
Dielectric strength	14	kV/mm	IEC 60243-1
Relative permittivity
1 MHz	4.40		IEC 60250
Dissipation factor
1 MHz	0.040		IEC 60250
Compared to the leakage tracing index	> 600	V	ASTM D3638
Compared to the leakage tracing index	> 600	V	IEC 60112

FLAME CHARACTERISTICS	Nominal value	Unit	Test method
Flame retardant level
1.50 mm	HB		UL 94

Supplementary information	Nominal value	Unit	Test method
tear strength	217.2	kN/m	ASTM D1004

Process Conditions
injection	Nominal value	Unit	Test method
Drying temperature	100 to 110	°C
Drying time	4.0	hr
Recommended maximum moisture content	0.050	%
Hopper temperature	20 to 50	°C
Barrel rear temperature	200 to 215	°C
Barrel middle temperature	205 to 230	°C
Barrel front temperature	205 to 230	°C
Nozzle temperature	205 to 235	°C
Processing (melt) temperature	205 to 235	°C
Mold temperature	20 to 55	°C
Injection speed	Moderate-Fast

Notes
1. Typical properties: these are not to be construed as specifications.
2. Die C
3. 10°C/min
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