Delrin® 127UV BK701

About
UV Stabilized High Viscosity Acetal Homopolymer&&

Product Description
SupplierDuPont
GenericParaformaldehyde
Material StatusCommercial: Active
FeaturesWeather resistance is good,High Viscosity,HB
AvailabilitysAfrica & Middle East ,North America,Latin America,Asia Pacific,Europe
Process MethodsExtrusion

Technical Data
PHYSICALNominal valueUnitTest method
Density1.42g/cm³ISO 1183
Melt Flow Rate
190℃,2.16kg2.5g/10minISO 1133

MECHANICALNominal valueUnitTest method
Tensile modulus3000MPaISO 527-2
tensile strength
yield71.5MPaISO 527-2
Tensile strain
yield22%ISO 527-2
Nominal tensile fracture strain37%ISO 527-2
Bending modulus2800MPaISO 178

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength ISO 179/1eA
-30℃10kJ/m²ISO 179/1eA
23℃13kJ/m²ISO 179/1eA

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed92.0ISO 75-2/A
0.45 MPa, unannealed162ISO 75-2/B
Melting temperature178ISO 11357-3
Linear coefficient of thermal expansion
TD1.1E-41/℃ISO 11359-2
MD1.1E-41/℃ISO 11359-2
annealing temperature160
annealing time
Optional30.0min/mm

FLAME CHARACTERISTICSNominal valueUnitTest method
0.80 mmHB UL 94
Burning rate
1 mm26mm/minISO 3795
Flammability level
0.8 mmHB IEC 60695-11-10, -20
FMVSS flame retardant ratingB FMVSS 302
Fogging(Gvalue,condensate)1.5E-4gISO 6452

Supplementary informationNominal valueUnitTest method
discharge< 8.00mg/kgVDA 275
Emissions of organic compounds16.0µgC/gVDA 277
Odor3.00 VDA 270
Weather Stability 
delta E0.400 DIN 53236
grey scale42500 ISO 105-A02

Process Conditions
injectionNominal valueUnitTest method
ExtrusionNominal valueUnitTest method
Drying temperature80°C
Drying time – hot air dryer2.0 to 4.0hr
Recommended maximum moisture content0.20%
Processing (melt) temperature210 to 220°C
Melt Temperature, Optimum215°C
Mold temperature80 to 100°C
Mold Temperature, Optimum90°C
Hold pressure90.0 to 110MPa
Drying Recommendedyes 
Hold Pressure Time8.00s/mm
Drying temperature75 to 85°C
Drying time2.0 to 4.0hr
Recommended maximum moisture content0.20%
Melt temperature195 to 205°C
Extrusion Melt Temperature, Optimum200°C

Notes
1. Typical properties: these are not to be construed as specifications.
2. 10°C/min
3. FMVSS 302
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