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Low-altitude aircraft

Plastic materials for consumer and industrial drones

All materials · 11 grades

Pain points and material advice

    • Battery housing / battery bay

      Battery bay safety

      Pain point
      Drone batteries have high energy density and high charge and discharge currents. Battery housings and areas around the battery compartment need flame retardancy and must not produce drips when burning.
      Advice · Candidates
      Advice
      Use halogen-free flame-retardant PC/ABS or PC for battery housings and test UL 94 at the actual wall thickness. Snap fits on plug-in batteries must balance toughness and wear resistance. For models used in winter, run low-temperature impact tests.
      Candidates

    • Arms (incl. folding arms)

      Lightweighting and stiffness

      Pain point
      The heavier the arms and body, the shorter the flight time. Arms that are not stiff enough cause vibration, which affects flight control and imaging.
      Advice · Candidates
      Advice
      Screen materials by specific stiffness. Carbon-fiber-reinforced PA has about half the density of aluminum alloy. Fiber orientation should follow the main load direction of the arm. Validate folding joints for fatigue and drop.
      Candidates

    Parts of the quadcopter drone

    Parts and materials of the quadcopter drone

    Pain points and material advice

    • Signal transmission

      Pain point
      Video transmission, remote control, GNSS and RTK antennas all need signals to pass freely. Carbon fiber materials block signals.
      Advice
      Use non-conductive materials such as PC, ASA or PC/ASA for radomes and around antennas. Avoid metallic-effect pigments. Measure dielectric constant and loss where needed.
      Candidates

    • Outdoor exposure: cold, UV and chemicals

      Pain point
      Drones work at altitude and in winter, at low temperatures. Long sun exposure fades housings and makes them brittle. Crop protection drones also come into contact with pesticides.
      Advice
      Choose weather-resistant grades for appearance parts and test impact and color difference after xenon-arc weathering. Test crop protection parts for chemical resistance with the actual agents. Set the low-temperature impact temperature by the flight environment.
      Candidates

    • Fast development, many models

      Pain point
      Drone models change fast, and industrial models come in small batches with much customization.
      Advice
      At the prototype stage, 3D print arms and brackets in carbon fiber PA filament for assembly and flight validation. For mass production, switch to injection molding with the equivalent pellets. Printed part properties are directional, so validate again with molded parts before mass production.
      Candidates

    Material selection for airframes, arms, propellers, landing gear, gimbals, battery bays, motor mounts, antenna covers, connectors and payload pods in consumer, industrial, agricultural and cargo drones.

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    1. 01 / 10Antenna cover · Antenna covers / RTK and video-link antenna housings

      GRN-PCAS-W310

      Weather-resistant PC/ASA

      Must let wireless signals through; outdoor weather resistance

      Tensile strength
      50–60 MPaISO 527-1/-2
      Heat deflection temperature
      95–110 °CISO 75-1/-2 · 1.80 MPa

      Typical values

      Material card

    2. 02 / 10Propellers · Propellers

      GRN-PA6-C310

      Carbon-fiber-reinforced PA6 (CFRPA)

      Must stay stiff and keep its shape at high speed; injection molding for volume production

      Tensile strength
      180–250 MPaISO 527-1/-2 · dry
      Heat deflection temperature
      200–215 °CISO 75-1/-2 · 1.80 MPa

      Typical values

      Material card

    3. 03 / 10Battery housing · Battery housing / battery bay

      GRN-PCA-N510

      Halogen-free flame-retardant PC/ABS

      Flame retardancy around the lithium battery; plug-in batteries must be wear and impact resistant

      Tensile strength
      55–65 MPaISO 527-1/-2
      Flammability rating
      V-0UL 94 · 1.5 mm; design target, subject to test report

      Typical values

      Material card

    4. 04 / 10Motor mounts · Motor mounts

      GRN-PA6-C510

      Flame-retardant carbon-fiber-reinforced PA6 (CFRPA)

      Motor vibration and heat; needs stiffness and heat resistance

      Tensile strength
      160–220 MPaISO 527-1/-2 · dry
      Flammability rating
      V-0UL 94 · 1.5 mm; design target, subject to test report

      Typical values

      Material card

    5. 05 / 10Body shell · Body shell / center frame

      GRN-PCA-W310

      Weather-resistant PC/ABS

      Carries the battery, flight controller and gimbal; high appearance requirements for consumer models

      Tensile strength
      50–58 MPaISO 527-1/-2
      Heat deflection temperature
      95–110 °CISO 75-1/-2 · 1.80 MPa

      Typical values

      Material card

    6. 06 / 10Arms · Arms

      GRN-PA6-C310

      Carbon-fiber-reinforced PA6 (CFRPA)

      Light and stiff; folding structures can be molded in one shot

      Tensile strength
      180–250 MPaISO 527-1/-2 · dry
      Heat deflection temperature
      200–215 °CISO 75-1/-2 · 1.80 MPa

      Typical values

      Material card

    7. 07 / 10Center frame · Body shell / center frame

      GRN-PA6-C310

      Carbon-fiber-reinforced PA6 (CFRPA)

      Carries the battery, flight controller and gimbal; high appearance requirements for consumer models

      Tensile strength
      180–250 MPaISO 527-1/-2 · dry
      Heat deflection temperature
      200–215 °CISO 75-1/-2 · 1.80 MPa

      Typical values

      Material card

    8. 08 / 10Obstacle-sensor window · Gimbal parts, camera housing

      GRN-PC-L120

      IR-transmissive black PC

      Light and stiff to reduce shake; good appearance

      Tensile strength
      60–68 MPaISO 527-1/-2
      Heat deflection temperature
      125–135 °CISO 75-1/-2 · 1.80 MPa

      Typical values

      Material card

    9. 09 / 10Gimbal and camera · Gimbal parts, camera housing

      GRN-PA6-C310

      Carbon-fiber-reinforced PA6 (CFRPA)

      Light and stiff to reduce shake; good appearance

      Tensile strength
      180–250 MPaISO 527-1/-2 · dry
      Heat deflection temperature
      200–215 °CISO 75-1/-2 · 1.80 MPa

      Typical values

      Material card

    10. 10 / 10Landing gear · Landing gear / skids

      GRN-PA6-E510

      Flame-retardant glass-fiber-reinforced PA6 (GFRPA)

      Takeoff and landing impacts; light weight; doubles as an antenna mount on some models

      Tensile strength
      130–160 MPaISO 527-1/-2 · dry
      Flammability rating
      V-0UL 94 · 1.5 mm; design target, subject to test report

      Typical values

      Material card

    Materials in the quadcopter drone

    Example grade / typical values — to be corrected by GREENPOLYMER Typical values. Refer to the actual TDS.

    • GRN-PA6-C310

      Carbon-fiber-reinforced PA6 (CFRPA)

      Tensile strengthISO 527-1/-2 · dry
      180–250 MPa
      Flexural modulusISO 178
      13–20 GPa
      Heat deflection temperatureISO 75-1/-2 · 1.80 MPa
      200–215 °C

      Used for

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      Features

      Light, stiff, fatigue-resistant

      Typical values

      Charpy notched impact strengthISO 179-1/1eA · 23 °C; dry
      8–14 kJ/m²
      DensityISO 1183
      1.20–1.28 g/cm³
      Flammability ratingUL 94 · 1.5 mm; design target, subject to test report
      HB

      Processing

      Drying
      80 °C, 4–6 h (desiccant dryer); moisture content 0.05–0.2 % recommended
      Melt temperature
      260–290 °C
      Mold temperature
      80–100 °C; upper end for a better surface

      Why this material

      • Arms (incl. folding arms)Light and stiff; folding structures can be molded in one shot
      • Body shell / center frameCarries the battery, flight controller and gimbal; high appearance requirements for consumer models
      • PropellersMust stay stiff and keep its shape at high speed; injection molding for volume production
      • Gimbal parts, camera housingLight and stiff to reduce shake; good appearance

    • GRN-PCA-W310

      Weather-resistant PC/ABS

      Tensile strengthISO 527-1/-2
      50–58 MPa
      Weathering (color difference)ISO 4892-2 · Xenon-arc 1000 h; design target
      ΔE ≤ 3
      Charpy notched impact strengthISO 179-1/1eA · 23 °C
      35–55 kJ/m²

      Used for

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      Features

      UV-resistant, color-stable outdoors

      Typical values

      Heat deflection temperatureISO 75-1/-2 · 1.80 MPa
      95–110 °C
      DensityISO 1183
      1.12–1.16 g/cm³
      Flammability ratingUL 94 · 1.5 mm; design target, subject to test report
      HB

      Processing

      Drying
      100–110 °C, 3–4 h
      Melt temperature
      250–280 °C
      Mold temperature
      60–90 °C

      Why this material

      • Carries the battery, flight controller and gimbal; high appearance requirements for consumer models

    • GRN-PA6-E510

      Flame-retardant glass-fiber-reinforced PA6 (GFRPA)

      Tensile strengthISO 527-1/-2 · dry
      130–160 MPa
      Flammability ratingUL 94 · 1.5 mm; design target, subject to test report
      V-0
      Flexural modulusISO 178
      8–10 GPa

      Used for

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      Features

      Stiff, fatigue-resistant, wear-resistant

      Typical values

      Heat deflection temperatureISO 75-1/-2 · 1.80 MPa
      190–205 °C
      Charpy notched impact strengthISO 179-1/1eA · 23 °C; dry
      8–12 kJ/m²
      DensityISO 1183
      1.40–1.50 g/cm³

      Processing

      Drying
      80 °C, 4–6 h (desiccant dryer); moisture content 0.05–0.2 % recommended
      Melt temperature
      260–290 °C
      Mold temperature
      80–100 °C; upper end for a better surface

      Why this material

      • Takeoff and landing impacts; light weight; doubles as an antenna mount on some models

    • GRN-PC-L110

      Transparent PC

      Tensile strengthISO 527-1/-2
      60–68 MPa
      Light transmittanceISO 13468-1 · 3 mm; design target
      ≥ 88 %
      Charpy notched impact strengthISO 179-1/1eA · 23 °C
      60–80 kJ/m²

      Used for

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      Features

      Light-transmitting, impact-resistant

      Typical values

      Heat deflection temperatureISO 75-1/-2 · 1.80 MPa
      125–135 °C
      DensityISO 1183
      1.19–1.21 g/cm³
      Flammability ratingUL 94 · 1.5 mm; design target, subject to test report
      HB

      Processing

      Drying
      120 °C, 3–4 h; moisture content ≤ 0.02 % recommended
      Melt temperature
      280–310 °C; for flame-retardant grades keep within the TDS upper limit
      Mold temperature
      80–110 °C

      Why this material

      • Light and stiff to reduce shake; good appearance

    • GRN-PC-L120

      IR-transmissive black PC

      Tensile strengthISO 527-1/-2
      60–68 MPa
      Charpy notched impact strengthISO 179-1/1eA · 23 °C
      60–80 kJ/m²
      Heat deflection temperatureISO 75-1/-2 · 1.80 MPa
      125–135 °C

      Used for

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      Features

      Black, IR-transmissive

      Typical values

      DensityISO 1183
      1.19–1.21 g/cm³
      Flammability ratingUL 94 · 1.5 mm; design target, subject to test report
      HB

      Processing

      Drying
      120 °C, 3–4 h; moisture content ≤ 0.02 % recommended
      Melt temperature
      280–310 °C; for flame-retardant grades keep within the TDS upper limit
      Mold temperature
      80–110 °C

      Why this material

      • Light and stiff to reduce shake; good appearance

    • GRN-PCA-H320

      Low-temperature high-impact PC/ABS

      Tensile strengthISO 527-1/-2
      48–56 MPa
      Charpy notched impact strengthISO 179-1/1eA · 23 °C; −30 °C: 25–40 kJ/m²
      45–65 kJ/m²
      Heat deflection temperatureISO 75-1/-2 · 1.80 MPa
      95–110 °C

      Used for

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      Features

      Good appearance, low-temperature toughness

      Typical values

      DensityISO 1183
      1.12–1.15 g/cm³
      Flammability ratingUL 94 · 1.5 mm; design target, subject to test report
      HB

      Processing

      Drying
      100–110 °C, 3–4 h
      Melt temperature
      250–280 °C
      Mold temperature
      60–90 °C

      Why this material

      • Light and stiff to reduce shake; good appearance

    • GRN-PCA-N510

      Halogen-free flame-retardant PC/ABS

      Tensile strengthISO 527-1/-2
      55–65 MPa
      Flammability ratingUL 94 · 1.5 mm; design target, subject to test report
      V-0
      Charpy notched impact strengthISO 179-1/1eA · 23 °C
      10–30 kJ/m²

      Used for

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      Features

      Halogen-free, flame-retardant

      Typical values

      Heat deflection temperatureISO 75-1/-2 · 1.80 MPa
      80–95 °C
      DensityISO 1183
      1.17–1.20 g/cm³

      Processing

      Drying
      100–110 °C, 3–4 h
      Melt temperature
      250–280 °C
      Mold temperature
      60–90 °C

      Why this material

      • Flame retardancy around the lithium battery; plug-in batteries must be wear and impact resistant

    • GRN-PA6-C510

      Flame-retardant carbon-fiber-reinforced PA6 (CFRPA)

      Tensile strengthISO 527-1/-2 · dry
      160–220 MPa
      Flammability ratingUL 94 · 1.5 mm; design target, subject to test report
      V-0
      Flexural modulusISO 178
      12–18 GPa

      Used for

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      Features

      Stiff, heat-resistant, creep-resistant

      Typical values

      Heat deflection temperatureISO 75-1/-2 · 1.80 MPa
      190–210 °C
      Charpy notched impact strengthISO 179-1/1eA · 23 °C; dry
      6–10 kJ/m²
      DensityISO 1183
      1.25–1.35 g/cm³

      Processing

      Drying
      80 °C, 4–6 h (desiccant dryer); moisture content 0.05–0.2 % recommended
      Melt temperature
      260–290 °C
      Mold temperature
      80–100 °C; upper end for a better surface

      Why this material

      • Motor vibration and heat; needs stiffness and heat resistance

    • GRN-PCAS-W310

      Weather-resistant PC/ASA

      Tensile strengthISO 527-1/-2
      50–60 MPa
      Weathering (color difference)ISO 4892-2 · Xenon-arc 1000 h; design target
      ΔE ≤ 3
      Charpy notched impact strengthISO 179-1/1eA · 23 °C
      30–50 kJ/m²

      Used for

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      Features

      Weather-resistant, impact-resistant, low loss

      Typical values

      Heat deflection temperatureISO 75-1/-2 · 1.80 MPa
      95–110 °C
      DensityISO 1183
      1.14–1.17 g/cm³
      Flammability ratingUL 94 · 1.5 mm; design target, subject to test report
      HB

      Processing

      Drying
      80–85 °C, 2–4 h
      Melt temperature
      230–260 °C
      Mold temperature
      50–80 °C

      Why this material

      • Must let wireless signals through; outdoor weather resistance

    • GRN-PA66-E510

      Halogen-free flame-retardant glass-fiber-reinforced PA66

      Tensile strengthISO 527-1/-2 · dry
      140–170 MPa
      Flammability ratingUL 94 · 1.5 mm; design target, subject to test report
      V-0
      Flexural modulusISO 178
      8–10 GPa

      Used for

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      Features

      Heat-resistant, dimensionally accurate, halogen-free flame-retardant

      Typical values

      Heat deflection temperatureISO 75-1/-2 · 1.80 MPa
      230–250 °C
      Charpy notched impact strengthISO 179-1/1eA · 23 °C; dry
      8–12 kJ/m²
      DensityISO 1183
      1.45–1.55 g/cm³

      Processing

      Drying
      80 °C, 4–6 h (desiccant dryer); moisture content 0.05–0.2 % recommended
      Melt temperature
      280–300 °C; do not exceed the TDS upper limit for flame-retardant grades
      Mold temperature
      80–110 °C

      Why this material

      • High current; plugging and unplugging; close to hot components

    • GRN-PP-E510

      Flame-retardant glass-fiber-reinforced PP

      Tensile strengthISO 527-1/-2
      50–70 MPa
      Flammability ratingUL 94 · 1.5 mm; design target, subject to test report
      V-0
      Flexural modulusISO 178
      4–6 GPa

      Used for

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      Features

      Chemical-resistant, stiff

      Typical values

      Heat deflection temperatureISO 75-1/-2 · 1.80 MPa
      120–145 °C
      Charpy notched impact strengthISO 179-1/1eA · 23 °C
      5–9 kJ/m²
      DensityISO 1183
      1.15–1.30 g/cm³

      Processing

      Drying
      Usually not needed; if damp, 80 °C, 1–2 h
      Melt temperature
      190–220 °C (not too high for flame-retardant grades)
      Mold temperature
      30–60 °C

      Why this material

      • Contact with pesticides and water; needs chemical and impact resistance

    Industry overview and trends

    • Drone numbers are growing fast

      By the end of 2025, about 3.287 million drones were registered in China, up about 51 % on the previous year. In 2025 drones flew about 45.3 million hours in total, up about 70 %.

    • Industrial drones make up the larger share

      In 2025, China's civil drone output was worth about RMB 176.1 billion, up about 20 %. Industrial drones accounted for about RMB 125.9 billion and consumer drones about RMB 50.2 billion. Inspection, surveying, crop protection, emergency response and logistics are the main uses.

    • The low-altitude economy is scaling up

      Low-altitude flight service stations, vertiports and routes are being built across the country. Logistics delivery, urban inspection, tourism and other uses are moving from pilots to regular operation. Import and export trade in unmanned aircraft was about RMB 23.3 billion, up about 44 %.

    • Safety requirements are more specific

      Safety requirements for civil unmanned aircraft systems are in force as a mandatory national standard (GB 42590-2023, fully applied from 2024-06-01). It sets requirements on structural strength, batteries, electromagnetic compatibility, remote identification and more. The standard applies to the complete aircraft, and materials must leave the aircraft margin to pass its tests.

    • Lightweighting and reliability at the same time

      Every bit of weight saved on the airframe helps flight time and payload. Industrial drones fly longer and carry heavier loads, and must also withstand low temperatures, UV, pesticides and humidity. Using carbon- and glass-fiber-reinforced plastics for arms and body frames is typical industry practice.

    • Drones flew about 45.3 million hours in 2025 (about +70 %).
    • In 2025, the output value of civil drones in China was about RMB 176.1 billion (about +20 %): industrial drones about RMB 125.9 billion, consumer drones about RMB 50.2 billion.
    • The low-altitude economy is scaling up: flight service stations, landing sites and routes are being built. Drone import and export trade reached about RMB 23.3 billion (about +44 %).
    • GB 42590-2023, the mandatory national safety standard for civil unmanned aircraft systems, has been fully in force since 2024-06-01.

    Part-to-material guide

    Full list · 13 parts

    This table shows common industry practice for first-round selection. The final choice depends on the applicable standards, load analysis and validation results (to be verified by GREENPOLYMER).

    Arms (incl. folding arms)

    Typical materials: Carbon-fiber-reinforced PA6 / PA66, glass-fiber-reinforced PA, carbon fiber tubes + plastic joints
    Why

    Light and stiff; folding structures can be molded in one shot

    Key requirements

    Specific stiffness (vibration control); fatigue resistance; drop impact; low-temperature toughness

    Common standards

    ISO 527; ISO 178; ISO 179; fatigue and vibration tested on the complete aircraft

    GREENPOLYMER grade

    GRN-PA6-C310 (carbon fiber, non-flame-retardant); GRN-PA6-C510 (flame-retardant carbon fiber)

    Example grade / typical values — to be corrected by GREENPOLYMER

    Body shell / center frame

    Typical materials: Carbon or glass-fiber-reinforced PA, PC/ABS (consumer housings), PC
    Why

    Carries the battery, flight controller and gimbal; high appearance requirements for consumer models

    Key requirements

    Stiffness; dimensional stability; appearance; low-temperature impact; UV resistance

    Common standards

    ISO 178; ISO 179; GB 42590-2023 clause 4.4 structural strength and clause 4.6 drop, both tested on the complete aircraft

    GREENPOLYMER grade

    Structure: GRN-PA6-C310, GRN-PA6-E510; housings: GRN-PCA-H320, GRN-PCA-W310

    Example grade / typical values — to be corrected by GREENPOLYMER

    Propellers

    Typical materials: Glass or carbon-fiber-reinforced PA6 / PA66; carbon fiber composites for large aircraft
    Why

    Must stay stiff and keep its shape at high speed; injection molding for volume production

    Key requirements

    Stiffness and dynamic balance; fatigue resistance; no sharp fragments after impact; consistent dimensions

    Common standards

    GB 42590-2023 clause 4.5.2: micro and light models without propeller guards must not use metal propellers; dynamic balance and burst speed per customer testing

    GREENPOLYMER grade

    Small propellers: GRN-PA6-C310. Non-flame-retardant high-toughness glass fiber PA: Available as a project-based development

    Example grade / typical values — to be corrected by GREENPOLYMER

    Landing gear / skids

    Typical materials: Glass-fiber-reinforced PA, PC/ABS, PA + TPU feet
    Why

    Takeoff and landing impacts; light weight; doubles as an antenna mount on some models

    Key requirements

    Impact (including low temperature); fatigue resistance; wear resistance

    Common standards

    ISO 179; GB 42590-2023 clause 4.6 drop, tested on the complete aircraft

    GREENPOLYMER grade

    GRN-PA6-E510; GRN-PCA-H320; TPU for feet: Available as a project-based development

    Example grade / typical values — to be corrected by GREENPOLYMER

    Gimbal parts, camera housing

    Typical materials: Carbon-fiber-reinforced PA, PC/ABS, PC; transparent PC or glass for lens protectors
    Why

    Light and stiff to reduce shake; good appearance

    Key requirements

    Dimensional accuracy; stiffness; low-temperature toughness; light transmission and scratch resistance of the lens protector

    Common standards

    ISO 178; ISO 13468 (transparent parts); IEC 60529

    GREENPOLYMER grade

    GRN-PA6-C310; GRN-PCA-H320; transparent parts: GRN-PC-L110. Obstacle avoidance and ranging sensor windows: IR-transmissive black PC is available for sensor and LiDAR windows

    Example grade / typical values — to be corrected by GREENPOLYMER

    Battery housing / battery bay

    Typical materials: Flame-retardant PC/ABS, flame-retardant PC; flame-retardant reinforced PA for industrial models
    Why

    Flame retardancy around the lithium battery; plug-in batteries must be wear and impact resistant

    Key requirements

    Flame retardancy, rating per the OEM's specification and assessed at the actual wall thickness; halogen-free; impact (including low temperature); dimensional stability

    Common standards

    UL 94; IEC 62133-2; UN 38.3 (transport, the battery itself)

    GREENPOLYMER grade

    GRN-PCA-N510; GRN-PC-N510; GRN-PCA-S520 (halogen-free, without PTFE anti-drip agent); structural parts: GRN-PA6-C510

    Example grade / typical values — to be corrected by GREENPOLYMER

    Motor mounts

    Typical materials: Carbon or glass-fiber-reinforced PA6 / PA66, aluminum alloy (heavy payloads)
    Why

    Motor vibration and heat; needs stiffness and heat resistance

    Key requirements

    Stiffness; heat resistance (motor temperature rise); creep resistance (screw clamping)

    Common standards

    ISO 75; ISO 178

    GREENPOLYMER grade

    GRN-PA6-C510; GRN-PA66-E510 (halogen-free flame retardant)

    Example grade / typical values — to be corrected by GREENPOLYMER

    Antenna covers / RTK and video-link antenna housings

    Typical materials: PC, ASA, PC/ASA, glass-fiber-reinforced PBT; no carbon fiber
    Why

    Must let wireless signals through; outdoor weather resistance

    Key requirements

    Low dielectric constant and loss; UV resistance; impact resistance

    Common standards

    Dielectric properties per customer specification; IEC 60529

    GREENPOLYMER grade

    GRN-PCAS-W310; GRN-ASA-W110; GRN-PC-L110 (transparent cover)

    Example grade / typical values — to be corrected by GREENPOLYMER

    Connectors, ESC and power-board brackets

    Typical materials: Flame-retardant glass-fiber-reinforced PA66, PBT-GF
    Why

    High current; plugging and unplugging; close to hot components

    Key requirements

    V-0; comparative tracking index (CTI); heat resistance; dimensional accuracy

    Common standards

    UL 94; IEC 60112; IEC 60695-2-12 / -13

    GREENPOLYMER grade

    GRN-PA66-E510; GRN-PBT-E510 (high CTI)

    Example grade / typical values — to be corrected by GREENPOLYMER

    Payload pods, mission-payload housings

    Typical materials: Glass-fiber-reinforced PC/ABS, carbon-fiber-reinforced PA, weather-resistant PC/ASA
    Why

    Carries LiDAR, spraying, lighting and other payloads; often needs quick release

    Key requirements

    Stiffness; UV resistance; chemical resistance (pesticides); IP protection

    Common standards

    IEC 60529; chemical resistance tested with the actual media

    Example grade / typical values — to be corrected by GREENPOLYMER

    Spray tank and spray parts (agricultural)

    Typical materials: PE, PP, glass-fiber-reinforced PP, PA
    Why

    Contact with pesticides and water; needs chemical and impact resistance

    Key requirements

    Chemical resistance; UV resistance; drop impact; low-temperature toughness

    Common standards

    Chemical resistance tested with the actual agents

    GREENPOLYMER grade

    Reinforced parts: GRN-PP-E510 (flame retardant). Non-flame-retardant chemical-resistant PP: Available as a project-based development

    Example grade / typical values — to be corrected by GREENPOLYMER

    Cargo box / cargo-bay housing

    Typical materials: PC/ABS, PP, weather-resistant PC/ASA, glass-fiber-reinforced PA (frame)
    Why

    Large and light; outdoor use; often works with food delivery or parcel lockers

    Key requirements

    Light weight; impact; UV resistance; dimensional stability

    Common standards

    ISO 179; weather resistance to ISO 4892-2

    GREENPOLYMER grade

    GRN-PCAS-W310; GRN-PCA-W310; frame: GRN-PA6-E510

    Example grade / typical values — to be corrected by GREENPOLYMER

    Remote controller / ground-station housing

    Typical materials: PC/ABS, ABS, PC; flame retardant when a lithium battery is built in
    Why

    Handheld, so appearance and feel matter; outdoor use

    Key requirements

    Impact; appearance; UV resistance; flame retardancy (with a built-in battery)

    Common standards

    UL 94; IEC 62368-1

    GREENPOLYMER grade

    GRN-PCA-H320; GRN-PCA-N510 (flame retardant); GRN-PCA-W310

    Example grade / typical values — to be corrected by GREENPOLYMER

    Notes

    • Carbon-fiber-reinforced materials may conduct electricity and may block signals. Do not use carbon fiber materials for radomes, near GPS/RTK antennas or in video transmission areas unless validated.
    • Nylon absorbs moisture. Conditioned strength and modulus are lower than the dry values. Check arms and propellers in their actual service condition.
    • Temperatures are low at altitude and in winter. Set the low-temperature impact test temperature by the flight environment (such as −20 °C, −30 °C).
    • GB 42590-2023, EU Delegated Regulation (EU) 2019/945 (drone product requirements, currently in force) and similar are aircraft-level standards; they apply to the complete aircraft, not to the material itself.

    GREENPOLYMER grades for low-altitude aircraft

    GradeMaterialRecommended partsDensityTensileNotched impactFlammability (target)
    GRN-PA6-C310Carbon-fiber-reinforced PA6 (non-flame-retardant)Arms, airframes, gimbals, small propellers1.20–1.28 g/cm³180–250 MPa (dry)8–14 kJ/m² (dry)HB @ 1.5 mm
    GRN-PA6-C510Flame-retardant carbon-fiber-reinforced PA6Battery compartment structures, motor mounts1.25–1.35 g/cm³160–220 MPa (dry)6–10 kJ/m² (dry)V-0 @ 1.5 mm
    GRN-PA6-E510Flame-retardant glass-fiber-reinforced PA6Landing gear, brackets, cargo box frames1.40–1.50 g/cm³130–160 MPa (dry)8–12 kJ/m² (dry)V-0 @ 1.5 mm
    GRN-PA66-E510Halogen-free flame-retardant glass-fiber-reinforced PA66Motor mounts, connectors, power distribution board brackets1.45–1.55 g/cm³140–170 MPa (dry)8–12 kJ/m² (dry)V-0 @ 1.5 mm
    GRN-PBT-E510Flame-retardant glass-fiber-reinforced PBT (high CTI)Connectors, ESC brackets1.55–1.70 g/cm³100–130 MPa6–10 kJ/m²V-0 @ 1.5 mm
    GRN-PCA-N510Halogen-free flame-retardant PC/ABSBattery housings, remote controller housings1.17–1.20 g/cm³55–65 MPa10–30 kJ/m²V-0 @ 1.5 mm
    GRN-PC-N510Halogen-free flame-retardant PCBattery housings (when heat requirements are higher)1.20–1.24 g/cm³60–68 MPa20–50 kJ/m²V-0 @ 1.5 mm
    GRN-PCA-H320Low-temperature high-impact PC/ABS (non-flame-retardant)Body housings, remote controllers, landing gear1.12–1.15 g/cm³48–56 MPa45–65 kJ/m² (−30 °C: 25–40 kJ/m²)HB @ 1.5 mm
    GRN-PCA-W310Weather-resistant PC/ABS (non-flame-retardant)Outdoor appearance parts, cargo boxes1.12–1.16 g/cm³50–58 MPa35–55 kJ/m²HB @ 1.5 mm
    GRN-PCAS-W310 / GRN-ASA-W110Weather-resistant PC/ASA / weather-resistant ASA (non-flame-retardant)Radomes, payload bays, cargo boxes1.06–1.17 g/cm³40–60 MPa8–50 kJ/m²HB @ 1.5 mm
    GRN-PC-L110Transparent PC (non-flame-retardant)Lens protectors, indicator covers, transparent radomes1.19–1.21 g/cm³60–68 MPa60–80 kJ/m²HB @ 1.5 mm
    Aluminum alloy (reference)——About 2.7 g/cm³———
    • Typical values. Refer to the actual TDS. Low-temperature impact is provided at the temperature you specify. Fatigue and vibration data are to be verified by GREENPOLYMER and can be tested per project.
    • For full properties, see Products. For how to choose, see the selection guide.

    Why GREENPOLYMER

    • Custom compounding

      GREENPOLYMER does carbon fiber and glass fiber reinforcing, toughening, flame-retardant and weather-resistant compounding. Formulations can be adjusted to the different requirements of arms, battery compartments and radomes. Materials marked "Available as a project-based development" in the table can be developed with GREENPOLYMER engineers.

    • Prototype to production

      GREENPOLYMER makes both pellets and 3D printing filament. During development, arms and brackets are printed in carbon fiber PA filament; for mass production, they switch to injection molding with the equivalent pellets.

    • Technical support

      Material selection assessment and design advice on wall thickness and ribs; mold flow analysis can be done together with your tooling team.

    • Halogen-free flame retardancy

      GREENPOLYMER's flame-retardant technology focuses on halogen-free and fluorine-free solutions. Silicone-based flame-retardant grades do not use PTFE anti-drip agents.

    • Color matching

      The Shenzhen Color Matching Center works to RAL and Pantone numbers and customer color plaques. UV-resistant compounding can be added for appearance parts.

    • Recycled grades

      Each grade can be customized with recycled content (suffix -R). The recycled share is set per project, with traceability documents. Certificate to be uploaded.

    • Fast sampling

      Free samples of 1–5 kg are available for standard grades, usually shipped in 3–7 working days. Custom formulation samples usually take 1–3 weeks.

    • Sites

      The company headquarters and main plant are in Jiangxi, which is also home to a 3D printing filament industry cluster. GREENPOLYMER also has the Hangzhou Production Base, the Shenzhen Color Matching Center and the Dongguan Development Center. 6,000+ t capacity; 29,000+ m² total plant area.

    • Patents

      8 invention patents.

    • In-house testing

      Test equipment covers melt flow rate, Izod and Charpy impact, horizontal and vertical burning (UL 94 method), heat deflection temperature and Vicat, constant temperature and humidity, UV and xenon-arc weathering, XRF, TGA, DSC, glow-wire, needle flame, comparative tracking index (CTI) and salt spray. In-house tests are for development and quality control and do not replace third-party test reports or UL certification.

    • Customers and partners

      DJI.

    3D printing in drone development

    UseExampleRecommended filament
    Structural prototypesAssembly and flight validation of arms, center frames and motor mountsGRN3D-PA6-C20 (PA6 with 20 % carbon fiber; carbon fiber content to be verified by GREENPOLYMER); GRN3D-PA12-C10 (lower moisture absorption); GRN3D-PA6-G25
    Payload bracketsQuick-release mounts for cameras, LiDAR, spray nozzles and lightsGRN3D-PA6-C20; GRN3D-PETG-C01
    Antenna and sensor mountsVideo transmission antenna mounts, GNSS brackets (no carbon fiber)GRN3D-ASA-S01 (outdoor); GRN3D-PETG-S01; GRN3D-PC-E01
    Flexible partsLanding gear feet, damping pads, cable jacketsGRN3D-TPU-F95; GRN3D-TPU-F85
    Appearance samplesAppearance reviews of body and remote controller housingsGRN3D-PLA-M01 (Matte); GRN3D-PCA-E01 (PC/ABS)
    • The properties of printed parts depend on print orientation, layer thickness and infill. Run vibration and drop tests on arms and motor mounts as actually printed.
    • Carbon-fiber-reinforced filament may conduct electricity and may affect wireless signals.

    For filament details, see the filament overview, Engineering series, Everyday Functional series and Flexible series. To prototype in filament and then injection-mold the same material family, see From compounding to filament. For more 3D printing applications, see the 3D printing industry page.

    Industry FAQ

    Q1. Carbon-fiber PA or carbon tube for drone arms?

    Both are common. Carbon tubes with plastic joints suit long arms and heavy-lift drones. Molded CF-PA suits small and medium arms and folding arms. It forms complex shapes in one step with consistent quality. CF-PA has a lower modulus than carbon tube and absorbs moisture, so validate under real vibration and drop conditions.

    Q2. Can antenna covers use carbon-fiber material?

    Not recommended. Carbon fiber conducts electricity and blocks radio signals. Use non-conductive materials such as PC, ASA or PC/ASA, and avoid metallic pigments. Measure dielectric constant and loss when needed.

    Q3. What flame rating do drone battery housings need?

    Flame-retardant materials are generally used around lithium batteries. The rating is set by the OEM's material specification and must be assessed at the actual wall thickness. GB 42590-2023 requires no fire or explosion in the drop and battery-pack tests, but sets no flammability rating for housing materials. Our halogen-free FR PC/ABS and PC grades target V-0 @ 1.5 mm; refer to the test reports.

    Q4. Will housings become brittle in winter flights?

    Standard ABS and some PC/ABS lose toughness at low temperatures. For winter or high-altitude use, choose a low-temperature high-impact grade and test impact at −20 °C or −30 °C. GRN-PCA-H320 has −30 °C impact data (typical values).

    Related products

    Customers and partners

    • DJI

    Request a quote / sample

    Please tell us:

    • Drone type (consumer, industrial, crop protection, logistics) and part name
    • Temperature range and outdoor exposure time
    • Flammability, weathering and signal transmission requirements
    • Current material
    • Prototype or production; estimated annual volume
    • TDS / SDS: Chinese and English versions are available by email.
    • For samples and the development process, see the FAQ.

    Contact us

    Tell us about the part, material requirements, equipment and expected volume. We will recommend suitable grades and the validation data you need.

    Send an inquiry
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