Vydyne® R525H BLK

About
Vydyne R525H BLK is hydrolysis-resistant, 25% glass-fiber reinforced, heat-stabilized PA66 resin. Available in black, it is specifically designed to maximize the retention of physical properties when exposed to anti-freeze solutions at elevated temperatures. This product is lubricated for improved machine feed and flow. Glass-reinforced Vydyne resins provide higher heat distortion temperature, resistance to creep and better dimensional stability when compared with unreinforced PA66. These products have good chemical resistance to a broad range of chemicals including gasoline, hydraulic fluids and most solvents. Vydyne R525H BLK is heat-stabilized to minimize oxidative degradation of the polymer when exposed to elevated temperatures in service. This product provides improved retention of physical properties under exposure to long-term heat. Also, Vydyne R525H BLK has excellent knit-line strength and fatigue resistance, which is essential for cycle testing with anti-freeze solutions. Typical Applications/End Uses Vydyne R525H BLK resin is used for under-the-hood automotive applications. Its hydrolysis-resistant properties make R525H BLK an excellent candidate for radiator end tank and heater core applications.&&

Product Description
SupplierAscend
GenericPA66
Material StatusCommercial: Active
FeaturesHydrolysis stability,Good liquidity,Antifreeze,Lubricating,Fatigue resistance,Solvent resistance,Gasoline resistance,Heat Stabilized,HB
AvailabilitysNorth America,Asia Pacific,Europe
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.32g/cm³ISO 1183
Shrinkage rate ISO 294-4
TD:23℃,2.0 mm0.90%ISO 294-4
MD:23℃,2.0 mm0.40%ISO 294-4
Water absorption rate
Equilibrium, 23 ℃, 50% RH2.0%ISO 62
23℃,24hr0.90%ISO 62

MECHANICALNominal valueUnitTest method
Tensile modulus
23℃8600MPaISO 527-2
tensile strength
Fracture, 23 ℃174MPaISO 527-2
Tensile strain
Fracture, 23 ℃3.0%ISO 527-2
Bending modulus
23℃7700MPaISO 178
bending strength
23℃250MPaISO 178
Poisson’s ratio0.40 ISO 527-2

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength ISO 179/1eA
-30℃10kJ/m²ISO 179/1eA
23℃11kJ/m²ISO 179/1eA
Charpy Unnotch Impact strength ISO 179/1eU
-30℃55kJ/m²ISO 179/1eU
23℃65kJ/m²ISO 179/1eU
Impact strength of cantilever beam notch ISO 180
-30℃9.0kJ/m²ISO 180
23℃10kJ/m²ISO 180

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed245ISO 75-2/A
0.45 MPa, unannealed258ISO 75-2/B
Melting temperature260ISO 11357-3
Linear coefficient of thermal expansion
TD:23~55℃,2 mm1.1E-41/℃ISO 11359-2
MD:23~55℃,2 mm2.5E-51/℃ISO 11359-2
0.75 mm140UL 746
1.5 mm140UL 746
3.0 mm140UL 746
Relative temperature index
Electrical performance UL 746
Strength mechanical performance UL 746
Impact mechanical performance UL 746
0.75 mm120UL 746
1.5 mm120UL 746
3.0 mm120UL 746
0.75 mm125UL 746
1.5 mm140UL 746
3.0 mm140UL 746

Electrical performanceNominal valueUnitTest method
Volume resistivity
0.75 mm1.0E+13ohms·cmIEC 60093
Dielectric strength
1 mm20kV/mmIEC 60243
Arc resistance
3.0 mmPLC 6 ASTM D495
Compared to the leakage tracing index
3.00 mm250 to 399VIEC 60112
High Arc Burning Index (HAI) UL 746
0.75 mmPLC 0 UL 746
1.5 mmPLC 0 UL 746
3.0 mmPLC 0 UL 746
High voltage arc marking rate
HVTRPLC 1 UL 746
Hot wire ignition
HWI UL 746
0.75 mmPLC 4 UL 746
1.5 mmPLC 3 UL 746
3.0 mmPLC 4 UL 746

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame retardant level UL 94
0.75 mmHB UL 94
1.50 mmHB UL 94
3.00 mmHB UL 94
Glowing wire flammability index IEC 60695-2-12
0.75 mm675IEC 60695-2-12
1.5 mm675IEC 60695-2-12
3.0 mm675IEC 60695-2-12
Igniting temperature of the hot wire IEC 60695-2-13
0.75 mm700IEC 60695-2-13
1.5 mm700IEC 60695-2-13
3 mm700IEC 60695-2-13

Supplementary informationNominal valueUnitTest method
Automotive materials
thickness d = 1mm+ FMVSS 302

Process Conditions
injectionNominal valueUnitTest method
Drying temperature80°C
Drying time4.0hr
Proposed maximum recycled material ratio25%
Barrel rear temperature280 to 310°C
Barrel middle temperature280 to 310°C
Barrel front temperature280 to 310°C
Nozzle temperature280 to 310°C
Processing (melt) temperature285 to 305°C
Mold temperature65 to 95°C

Notes
1. Typical properties: these are not to be construed as specifications.
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