TECHNYL® PROTECT Flame-Retardant Polyamide: The Safe Choice for EV Charging Guns
Introduction: With the rapid growth of the global new energy vehicle industry, the charging gun — a critical component connecting the grid to the vehicle — demands exceptional material safety and reliability. The TECHNYL® PROTECT series of flame-retardant polyamides has become the ideal material choice for charging gun housings, plugs, connectors, and other core components, thanks to its outstanding flame retardancy, electrical insulation, and mechanical strength.
🔌 Five Core Requirements for Charging Gun Materials
UL94 V0 rating ensures no fire spread during electrical faults
High CTI (≥600V) prevents tracking and arcing
High impact resistance and rigidity for repeated plug/unplug cycles and drop tests
Long-term thermal stability for high-current charging conditions
Halogen-free, red phosphorus-free, RoHS/REACH compliant
🧪 TECHNYL® PROTECT Series: Four Charging Gun Specific Grades
The TECHNYL® PROTECT series offers multiple flame-retardant polyamide solutions. Below are four star grades widely used in charging guns, connectors, and high-voltage electrical systems:
1️⃣ TECHNYL® PROTECT C 60G1 V30 BK
PA6 + 30% Glass Fiber · Halogen & Red Phosphorus Free FR · Heat-Aging Stabilized · UL94 V0
11000 MPa
140 MPa
600V (PLC 0)
960°C
205°C
🎯 Charging Gun Applications: Charging gun housing, plug body, high-voltage connectors — 30% glass fiber provides excellent rigidity and dimensional stability, CTI 600V ensures superior electrical safety, V0 rating achieved at 0.75mm thickness.
2️⃣ TECHNYL® PROTECT C 50H1 BK
PA6 · Halogen & Red Phosphorus Free FR · Heat-Aging Stabilized · UL94 V0
3400 MPa
80 MPa
600V (PLC 0)
960°C
3 kJ/m²
🎯 Charging Gun Applications: Internal brackets, insulation components, cable fixing structures — unfilled version offers good toughness for non-load-bearing internal parts while maintaining V0 flammability rating.
3️⃣ TECHNYL® PROTECT A 50H1 BK
PA66 · Halogen & Phosphorus Free FR · Heat Stabilized · UL94 V0
3800 MPa
75 MPa
600V
263°C
237°C
🎯 Charging Gun Applications: Charging gun handle, buttons, locking mechanisms — PA66 base offers superior heat resistance, V0 rating achieved at 0.4mm ultra-thin wall, ideal for compact charging gun designs.
4️⃣ TECHNYL® PROTECT A 60G1 V30 BK
PA66 + 30% Glass Fiber · Halogen & Red Phosphorus Free FR · Heat Stabilized · UL94 V0 · Asia Availability Only
10500 MPa
145 MPa
230°C
262°C
9.5 kJ/m²
🎯 Charging Gun Applications: High-power DC fast charging gun housings, high-voltage connectors — PA66 base with 30% glass fiber delivers exceptional heat resistance and mechanical strength, specially tailored for high-power charging demands in Asian markets.
📊 Selection Guide: Choosing the Right Material for Your Charging Gun
🔥 Halogen & Red Phosphorus Free FR Technology: Safer Charging Experience
The TECHNYL® PROTECT series features a halogen-free and red phosphorus-free environmentally friendly flame retardant system, offering significant advantages over traditional FR materials:
- Low Corrosivity: No corrosive gases (such as hydrogen halides) are produced during combustion, reducing corrosion risk to metal terminals inside the charging gun
- Low Smoke Density: Low smoke emission during fire incidents, ensuring evacuation visibility and rescue safety
- Environmental Compliance: Fully compliant with RoHS, REACH, and other global environmental regulations
- UL94 V0 Certified: Multiple grades achieve UL94 V0 rating at thicknesses from 0.4mm to 3.0mm, meeting the most stringent safety standards
All four grades hold UL Yellow Card certifications (certificate numbers: E170540, E44716), providing globally recognized safety validation for charging gun manufacturers.
⚙️ Processing Guidelines
According to DOMO Chemicals technical data sheets, the TECHNYL® PROTECT series recommends the following injection molding parameters:
75-85°C / 2-4h
Dew point ≤ -30°C
C series: 240-270°C
A series: 270-290°C
C series: 80-100°C
A series: 80-100°C
0.2%
⚠️ Special Note: Flame-retardant materials can be corrosive to screw and barrel equipment during processing. It is recommended to use high-chromium, high-carbon steel with ≥16% chromium content, and strictly follow recommended processing temperatures and residence times to ensure product performance and equipment longevity.
📈 Charging Gun Industry Trends & Material Outlook
As NEV penetration continues to rise and charging infrastructure accelerates, charging gun material requirements are evolving in several directions:
- High-Power Fast Charging: 350kW+ ultra-fast chargers demand higher heat resistance, increasing the adoption of PA66-based materials
- Lightweight Design: 30% glass fiber reinforced materials enable weight reduction while maintaining strength, improving user experience
- Stricter Safety Standards: UL94 V0 has become the entry-level requirement for charging gun materials, with halogen-free as a clear trend
- Smart Integration: Charging guns now integrate temperature sensors and communication modules, demanding better dimensional stability and electrical performance
With its comprehensive product portfolio and outstanding performance, the TECHNYL® PROTECT series has become a trusted material partner for charging gun manufacturers worldwide.
Conclusion: From slow charging to fast charging, from home chargers to public ultra-fast charging stations, TECHNYL® PROTECT flame-retardant polyamides safeguard every charging session with exceptional safety, reliability, and processability. Whether for charging gun housings, internal insulation components, or high-voltage connectors, TECHNYL® PROTECT offers UL-certified, environmentally compliant, proven solutions.
📞 Contact Us: For more detailed technical data or sample support for TECHNYL® PROTECT grades in charging gun applications, please contact us.
Source: This article is based on DOMO Chemicals official technical data sheets for the TECHNYL® PROTECT series (C 60G1 V30 BK, C 50H1 BK, A 50H1 BK, A 60G1 V30 BK).