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  • XENOY™ 6370: High-Toughness, Ductile PC+PBT Plastic
  • XENOY™ 6370: High-Toughness, Ductile PC+PBT Plastic
  • XENOY™ 6370: High-Toughness, Ductile PC+PBT Plastic
  • XENOY™ 6370: High-Toughness, Ductile PC+PBT Plastic
  • XENOY™ 6370: High-Toughness, Ductile PC+PBT Plastic
  • XENOY™ 6370: High-Toughness, Ductile PC+PBT Plastic

XENOY™ 6370: High-Toughness, Ductile PC+PBT Plastic

XENOY™ 6370 is a PC+PBT composite with 30% glass fiber and impact modification, offering excellent toughness, ductility, dimensional stability, and heat resistance for automotive, electronic, and industrial parts.

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  • Product Struction

What is XENOY™ 6370

 

When sourcing engineering plastics, decision-makers rarely look at strength alone. Toughness, dimensional control, and the way a material behaves in processing all weigh into the choice. For many buyers, XENOY™ 6370 (PC+PBT, glass fiber reinforced) has become a practical solution. It combines polycarbonate and polybutylene terephthalate, is reinforced with 30% glass fiber, and is impact-modified—giving it an unusual mix of stiffness and ductility that is hard to achieve with single polymers.

XENOY™ 6370

 

01 | Material Highlights

 

  • Structural stability with reinforcement
    With 30% glass fiber, the grade holds its shape under load and resists creep, which is particularly useful in parts exposed to constant stress.

  • Ductility and toughness
    Unlike some rigid plastics that tend to crack under shock, this material can flex without breaking. Even in low-temperature environments, it resists brittle failure. That makes it workable for snap-fit designs and thin-walled parts where breakage risk is high.

  • Thermal resistance
    Mechanical properties remain reliable at elevated temperatures, so it is often chosen for components located near heat sources such as engine compartments or power electronics housings.

  • Electrical insulation
    Its dielectric strength and volume resistivity make it dependable for switches, connectors, and other current-carrying parts.

  • Dimensional precision
    The relatively low shrinkage rate helps manufacturers hold tighter tolerances in injection molding. Complex molds and assemblies benefit directly from this.

 

02 | Typical Applications

 

  • Automotive – bumper frames, under-hood components, brackets, battery module housings.

  • Electrical & electronics – switches, connectors, insulation covers.

  • Industrial equipment – gears, shields, and other parts where both impact and chemical resistance are needed.

  • Consumer products – sturdy yet lightweight housings that improve user safety and product lifetime.

 

03 | XENOY™ 6370 Data Sheet

 

ULConditionStandardValueUnit
CTIIEC 601122PLC
HAIAll Color 1.5mmUL 746A3PLC
HAIAll Color 3.0mmUL 746A3PLC
HVTRUL 746A1PLC
HWIAll Color 1.5mmUL 746A2PLC
HWIAll Color 3.0mmUL 746A1PLC
RTIElec  All Color 1.5mmUL 746B140°C
RTIElec  All Color 3.0mmUL 746B140°C
RTIImp  All Color 1.5mmUL 746B130°C
RTIImp  All Color 3.0mmUL 746B130°C
RTIStr  All Color 1.5mmUL 746B140°C
RTIStr  All Color 3.0mmUL 746B140°C
Volume ResistivityASTM D2571E15Ω.cm
Dimensional StabilityUL7460.0%
Dielectric StrengthASTM D14938KV/mm
Arc ResistanceASTM D4955PLC
Flame RatingAll Color 1.5mmUL94HB
Flame RatingAll Color 3.0mmUL94HB
Mechanical behaviorConditionStandardValueUnit
ElongationYield 5mm/minASTM D6383%
ElongationYield 5mm/minISO 5273%
ElongationBreak 5mm/minASTM D6384%
ElongationBreak 5mm/minISO 5273%
Flexural StrengthYield 1.3mm/minASTM D790150MPa
Flexural StrengthYield 2.0mm/minISO 178154MPa
Flexural StrengthBreak 1.3mm/minASTM D790138MPa
Flexural Modulus1.3mm/minASTM D7905370MPa
Flexural Modulus2.0mm/minISO 1787750MPa
Izod Un-notch Impact23°CASTM D481265.30kJ/m²
Izod Notch Impact23°CASTM D25617.34kJ/m²
Izod Notch Impact23°C 4.0mmISO 18010kJ/m²
Izod Notch Impact-30°CASTM D25611.42kJ/m²
Izod Notch Impact-30°C 4.0mmISO 1806kJ/m²
Tensile StrengthBreak 5mm/minASTM D63891MPa
Tensile StrengthBreak 5mm/minISO 527105MPa
Tensile StrengthYield 5mm/minASTM D63897MPa
Tensile StrengthYield 5mm/minISO 527105MPa
Tensile Modulus1.0mm/minISO 5278500MPa
Tensile Modulus5mm/minASTM D6389750MPa
Charpy Notch Impact23°C 4.0mmISO 1799kJ/m²
ThermalConditionStandardValueUnit
HDT1.8MPa 4.0mmISO 75155°C
HDTUnanealed 0.45MPa 6.4mmASTM D648204°C
HDTUnanealed 1.8MPa 6.4mmASTM D648149°C
CLEFlow -40.0~40°CASTM E8312.7E-5cm/cm/°C
CLEFlow -40.0~40°CISO 113592.7E-5cm/cm/°C
CLEFlow 60~138°CASTM E8311.98E-5cm/cm/°C
CLExFlow -40.0~40°CASTM E8311.1E-4cm/cm/°C
CLExFlow -40.0~40°CISO 113591.1E-4cm/cm/°C
Vicat Softening Temperature50°C/hr 50NASTM D1525153°C
Vicat Softening Temperature50°C/hr 50NISO 306148°C
Vicat Softening Temperature120°C/hr 50NISO 306150°C
Physical propertyConditionStandardValueUnit
Water Absorption24hrASTM D5700.09%
Water Absorption23°C SaturationISO 620.5%
Water Absorption23°C 50RHISO 620.15%
ShrinkageFlow 0.75-2.30mmINTERNAL METHOD0.3~0.4%
ShrinkageFlow 2.3-4.6mmINTERNAL METHOD0.4~0.5%
ShrinkagexFlow 0.75-2.30mmINTERNAL METHOD0.4~0.7%
ShrinkagexFlow 2.3-4.6mmINTERNAL METHOD0.7~0.9%
Specific VolumeASTM D7920.7cm³/g
DensityASTM D7921.44g/cm³
DensityISO 11831.44g/cm³
Melt Index250°C 5kgASTM D123824g/10min
Melt Index250°C 5kgISO 113312cm³/10min
Melt Index265°C 5kgISO 113319cm³/10min
Electrical propertiesConditionStandardValueUnit
Dielectric Constant1MHzASTM D1504
Dielectric Constant100HzASTM D1504
Volume ResistivityASTM D2574.8E+15Ω.cm
Dissipation Factor1MHzASTM D1500.02
Dissipation Factor100HzASTM D1500.003
HardnessConditionStandardValueUnit
Rockwell HardnessR(Scale)ASTM D785109
FlammabilityConditionStandardValueUnit
Flame RatingAll Color 1.5mmUL94HB
Flame RatingAll Color 3.0mmUL94HB

Looking for the full datasheet? Contact us for more technical information.

 

04 | Processing and Compatibility

 

The grade is designed for injection molding and shows a reasonable compromise between flow and strength. For high-volume production, this means fewer trade-offs between cycle time and part quality. Shrinkage is low, so parts stay closer to design dimensions. In mass production runs, the stability of this material reduces reject rates, which matters directly to cost control.

 

05 | Why it Stands Out

 

Compared with using PC or PBT on their own, XENOY™ 6370 brings together the ductility of PC, the chemical resistance of PBT, and the rigidity of glass fiber reinforcement.

Engineers also point out its adaptability: it performs in hot, cold, and humid conditions.

In many applications it can even replace metal or more expensive engineering plastics, bringing both weight reduction and cost savings.

This is one reason it is frequently specified in automotive lightweighting projects and in electrification components.

 

06 | FAQ

 

Q1: Can it be used outdoors?
It tolerates some outdoor conditions. However, for continuous exposure, UV-stabilized versions or protective coatings are recommended.

Q2: What advantage does it have over metal parts?
It is lighter, easier to process, and usually more economical—while still meeting structural requirements in many cases.

Q3: Is it suitable for electric vehicle parts?
Yes. Its insulation and heat stability make it a natural fit for battery brackets, connectors, and related modules.

 

07 | Why Work with Juyuan

 

For buyers, material quality is only half the story—supply security matters just as much. Juyuan has been active in the international plastics trade for 24 years and offers:

  • Verified sourcing – authentic materials from stable global channels.

  • Practical selection advice – recommendations shaped around customer industries, not just data sheets.

  • Efficient delivery – logistics networks covering multiple ports and warehouses to keep lead times short.

  • Long-term reliability – ongoing supply partnerships with customers in automotive, electronics, and industrial sectors.

Choosing Juyuan means working with a supplier that understands both the material and the buyer’s business context.

XENOY™ 6370 supplier

 

 

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