Makroblend® EL703

About
(PC+PET) blend; unreinforced; flame-retardant; UV-stabilized; impact modified; high flow; injection molding grade. Good impact strength, dimensional stability and chemical resistance. Uses include outdoor electrical enclosures. UL746C f1 rated.&&

Product Description
SupplierCovestro
GenericPC+PET
Material StatusCommercial: Active
FeaturesWeather resistance is good,High impact resistance,Good Dimensional Stability,High liquidity,Flame Characteristics,Solvent resistance,V-0
AvailabilitysAfrica & Middle East ,North America,Latin America,Asia Pacific,Europe
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.30g/cm³ISO 1183
Melt Volume Rate
270℃,5 kg26.0cm³/10minISO 1133
Shrinkage rate ISO 2577
TD0.60 to 0.80%ISO 2577
MD0.60 to 0.80%ISO 2577
Water absorption rate
Saturation, 23 ℃0.50%ISO 62
Equilibrium, 23 ℃, 50% RH0.20%ISO 62
Weathering resistancef1 UL 746C

MECHANICALNominal valueUnitTest method
Tensile modulus
23℃2300MPaISO 527-1-2
tensile strength
Fracture, 23 ℃55.0MPaISO 527-2/50
Yield, 23 ℃56.0MPaISO 527-2/50
Tensile strain
Yield, 23 ℃4.5%ISO 527-2/50
Nominal tensile fracture strain
23℃100%ISO 527-2/50
Bending modulus
23℃2250MPaISO 178
bending strength ISO 178
23℃83.0MPaISO 178
3.50% strain, 23 ℃71.0MPaISO 178

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength ISO 179/1eA
-30℃15kJ/m²ISO 179/1eA
23℃50kJ/m²ISO 179/1eA
Impact strength of cantilever beam notch ISO 180/A
-30℃15kJ/m²ISO 180-A
23℃50kJ/m²ISO 180-A

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed96.0ISO 75-2/A
0.45 MPa, unannealed119ISO 75-2/B
Vicat Softening Temp
B120132ISO 306/B120
Linear coefficient of thermal expansion
TD:23~55℃8.0E-51/℃ISO 11359-2
MD:23~55℃7.0E-51/℃ISO 11359-2
Thermal conductivity coefficient
23℃0.20W/m/KISO 8302
Relative temperature index
Electrical performance, 1.50 mm105UL 746
Strength mechanical performance, 1.50 mm105UL 746
Impact mechanical performance, 1.50 mm90.0UL 746

Electrical performanceNominal valueUnitTest method
Surface resistivity1.0E+16ohmsIEC 60093
Volume resistivity
23℃1.0E+16ohms·cmIEC 60093
Dielectric strength
23 ℃,1 mm34kV/mmIEC 60243-1
Relative permittivity IEC 60250
23℃,100 Hz3.50 IEC 60250
23℃,1 MHz3.30 IEC 60250
Dissipation factor IEC 60250
23℃,100 Hz3.0E-3 IEC 60250
23℃,1 MHz0.020 IEC 60250
Compared to the leakage tracing index
Solution A200VIEC 60112

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame retardant level UL 94
1.50 mmV-0 UL 94
3.00 mmV-0 5VA UL 94

Notes
1. Typical properties: these are not to be construed as specifications.
2. 600 bar
3. 0.079 in/min
4. Cross-flow
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