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Home appliances and cleaning

Plastic materials for robot vacuums, handheld vacuums, personal care and kitchen appliances

All materials · 7 grades

Parts and materials of the robot vacuum

Pain points and material advice

  • Unattended operation: glow-wire requirements

    Pain point
    Robot vacuums and docking stations charge and run unattended. Appliance safety standards set glow-wire requirements for plastic parts carrying electrical connections. Looking only at the UL 94 rating is not enough.
    Advice
    First identify which plastic parts "support connections carrying more than 0.2 A", then set the GWFI and GWIT targets per the clause; if the material falls short, the standard allows a glow-wire test on the part or a needle-flame test on surrounding parts. Reinforced PBT and PA66 usually reach higher glow-wire temperatures more easily. Test at the actual wall thickness and color.
    Candidates

  • Water, hot water and detergents

    Pain point
    Docking stations and wet-dry floor cleaners are in long-term contact with hot water and cleaning fluids. PC and PC/ABS may crack under stress and cleaners together. PA absorbs water and changes dimensions.
    Advice
    Run stress tests with the actual cleaners and service temperature. For parts in long-term contact with hot water, consider PP or hydrolysis-resistant materials first. For transparent water tanks, validate both retained transparency and crack resistance.
    Candidates

  • Moving parts: wear and dimensional stability

    Pain point
    Main brushes, side brushes and gears rotate for long periods and get tangled with hair. Wear and deformation cause noise and jamming.
    Advice
    Use POM first for gears and bushings, for low friction and dimensional stability. Use glass-fiber-reinforced PA for heavily loaded spindles. Allow in the design for dimensional changes of PA after moisture absorption.
    Candidates

  • Appearance and color consistency

    Pain point
    Appliance color and gloss are part of brand identity. Top covers, docking stations and accessories come from different batches, and large color differences lead to rejections. Painting adds cost and VOC.
    Advice
    Color match at the compounding stage, and confirm the color difference limit, light source and gloss. Consider high-gloss mold-in-color (paint-free) materials. Products used by windows need UV resistance.
    Candidates

  • Food contact

    Pain point
    Kettles, coffee machines and similar products have both food contact parts and electrical parts. Regulations differ by market. The EU has banned BPA in food contact materials, which affects traditional PC water level windows.
    Advice
    Select materials for food contact parts and non-food-contact parts separately. For food contact parts, prepare compliance documents and migration tests for the target market — China GB 4806 series, EU (EU) No 10/2011 and (EU) 2024/3190, US FDA. Select non-food-contact bases and thermostat brackets by electrical safety requirements.
    Candidates
    • Non-food-contact parts:
    • GRN-PBT-E510
    • GRN-PA66-E510
    • GRN-PP-N510
    • Food contact parts: food-contact grades are available, with compliance testing supported to GB 4806 and (EU) No 10/2011 requirements, and are provided per project

Material selection for plastic parts in robot vacuums and docks, wet-dry floor cleaners, handheld vacuums, hair dryers, kettles and other kitchen appliances, and washing machines.

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Materials in the robot vacuum

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

  • 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

    Request a sampleGrade details
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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

    • Large appearance surfaces; must resist scratches and knocks; consistent color

  • GRN-ABS-A110

    High-gloss ABS

    Tensile strengthISO 527-1/-2
    42–50 MPa
    Charpy notched impact strengthISO 179-1/1eA · 23 °C
    12–22 kJ/m²
    Heat deflection temperatureISO 75-1/-2 · 1.80 MPa
    80–90 °C

    Used for

    Request a sampleGrade details
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    Features

    High gloss, mold-in-color, consistent color

    Typical values

    DensityISO 1183
    1.04–1.06 g/cm³
    Flammability ratingUL 94 · 1.5 mm; design target, subject to test report
    HB

    Processing

    Drying
    80–85 °C, 2–4 h; moisture content below 0.1 % recommended
    Melt temperature
    210–250 °C; flame-retardant grades at the lower end, usually not above 230 °C
    Mold temperature
    40–80 °C; upper end for high-gloss parts

    Why this material

    • Large appearance surfaces; must resist scratches and knocks; consistent color

  • 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

    Request a sampleGrade details
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    Features

    Crack-resistant, tough at low temperature

    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

    • Repeatedly hits furniture; must be tough and crack resistant

  • 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

    Request a sampleGrade details
    MoreLess

    Features

    Transparent, 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

    • Dust bin (often with a clear window)Transparent so the dust can be seen; repeated removal and refitting; must withstand washing
    • Clean / dirty water tank (robot, dock, wet-dry cleaner)Water and cleaner resistant; water level often needs to be visible; welding or sealing needed

  • GRN-PCA-T310

    Heat-resistant PC/ABS

    Tensile strengthISO 527-1/-2
    50–60 MPa
    Charpy notched impact strengthISO 179-1/1eA · 23 °C
    35–55 kJ/m²
    Heat deflection temperatureISO 75-1/-2 · 1.80 MPa
    95–115 °C

    Used for

    Request a sampleGrade details
    MoreLess

    Features

    Impact-resistant, balanced heat resistance and toughness

    Typical values

    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

    • Dust bin (often with a clear window)Transparent so the dust can be seen; repeated removal and refitting; must withstand washing
    • Handheld vacuum / wet-dry cleaner body and handleGrip loads; drops; appearance; battery compartment needs flame retardancy

  • GRN-POM-G110

    General-purpose copolymer POM

    Tensile strengthISO 527-1/-2
    60–68 MPa
    Flexural modulusISO 178
    2.4–2.9 GPa
    Heat deflection temperatureISO 75-1/-2 · 1.80 MPa
    90–105 °C

    Used for

    Request a sampleGrade details
    MoreLess

    Features

    Wear-resistant, low friction, dimensionally stable

    Typical values

    Charpy notched impact strengthISO 179-1/1eA · 23 °C
    5–8 kJ/m²
    DensityISO 1183
    1.39–1.42 g/cm³
    Flammability ratingUL 94 · 1.5 mm; design target, subject to test report
    HB

    Processing

    Drying
    Usually not needed; if damp, 80 °C, 2–3 h
    Melt temperature
    190–210 °C; do not exceed 230 °C
    Mold temperature
    60–90 °C; upper end for precision parts, for more stable dimensions

    Why this material

    • Wear resistant, dimensionally stable; long-term rotation; twisted by tangled hair

  • 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

    Request a sampleGrade details
    MoreLess

    Features

    Stiff, heat-resistant, 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

    • Close to motor heat and vibration; needs stiffness, heat resistance and flame retardancy

Industry overview and trends

  • Cleaning robots are growing fast

    In 2025, about 32.7 million household cleaning robots shipped worldwide, up about 20 % on the previous year. Robot vacuums accounted for about 24.1 million, up about 17 %, or about three quarters. Robot lawn mowers and window-cleaning robots grew faster, and pool cleaning robots are going cordless. Chinese brands hold important positions in several categories.

  • From indoors to outdoors

    Cleaning robots are expanding from indoor floor cleaning to lawn mowing, window cleaning and pool cleaning. Outdoor products bring new material requirements for UV resistance, water resistance and low-temperature impact.

  • Docking stations keep getting more complex

    Auto-emptying, automatic water fill and drain, hot-water mop washing and drying put more water tanks, water paths and heated parts in the dock. Materials must resist hot water and cleaners, and meet the glow-wire requirements for unattended appliances.

  • Personal care appliances get faster and hotter

    High-speed hair dryers have fast motors and hot outlet air. Surrounding plastic parts must withstand heat long-term while staying light and good-looking.

  • Food contact requirements are stricter

    China's new national standard for food-contact plastics, GB 4806.7-2023, has applied since September 2024. EU Regulation (EU) 2024/3190 bans bisphenol A (BPA) in food contact materials, and most transition periods ended in July 2026. This affects the use of PC-type materials in kettles, coffee machines, blenders and similar products.

  • Recycled content and environmental rules

    Home appliance brands commonly set recycled-content targets. Export products must meet RoHS and REACH. The EU is reviewing a universal PFAS restriction proposal under REACH; as of October 2026 it is still a proposal.

  • In 2025, global shipments of home cleaning robots were about 32.7 million units (about +20 %). Robot vacuums were about 24.1 million units (about +17 %), about three quarters of the total.
  • Cleaning robots are moving outdoors: lawn mowers, window cleaners and pool cleaners. Outdoor parts need UV, water and low-temperature impact resistance.
  • Docks now include water tanks, water paths and heaters.
  • High-speed hair dryers run hotter. Nearby plastic parts need long-term heat resistance.
  • China's food-contact plastics standard GB 4806.7-2023 took effect in September 2024.
  • Brands set recycled-content targets.

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, the actual wall thickness and validation results (to be verified by GREENPOLYMER).

Robot vacuum top cover / body

Typical materials: ABS, PC/ABS, high-gloss mold-in-color ABS
Why

Large appearance surfaces; must resist scratches and knocks; consistent color

Key requirements

Appearance (high-gloss or matte); impact; low warpage; UV resistance (sun by windows)

Common standards

IEC 60335-2-2; GB 4706.7; ISO 179

GREENPOLYMER grade

GRN-ABS-A110 — high-gloss, mold-in-color; GRN-PCA-T310; GRN-ABS-G110. Obstacle avoidance, docking and LiDAR windows: IR-transmissive black PC is available for sensor and LiDAR windows

Example grade / typical values — to be corrected by GREENPOLYMER

Bumper

Typical materials: PC/ABS, high-impact ABS, PC
Why

Repeatedly hits furniture; must be tough and crack resistant

Key requirements

Room- and low-temperature impact; fatigue; snap-fit toughness

Common standards

ISO 179; ISO 180; collision life per customer specification

GREENPOLYMER grade

GRN-PCA-H320 (low-temperature high impact); GRN-ABS-H120 (high-impact ABS)

Example grade / typical values — to be corrected by GREENPOLYMER

Dust bin (often with a clear window)

Typical materials: Transparent PC, PC/ABS, ABS, PP
Why

Transparent so the dust can be seen; repeated removal and refitting; must withstand washing

Key requirements

Light transmission; impact resistance; cleaner resistance; snap-fit and seal dimensions

Common standards

ISO 13468; ISO 179

GREENPOLYMER grade

Transparent parts: GRN-PC-L110; opaque parts: GRN-PCA-T310, GRN-ABS-H120

Example grade / typical values — to be corrected by GREENPOLYMER

Brush roll core, side-brush hub

Typical materials: POM, PA6 / PA66 (reinforcement possible), PP; TPU and TPE for bristles and wiper strips
Why

Wear resistant, dimensionally stable; long-term rotation; twisted by tangled hair

Key requirements

Wear resistance; low friction; fatigue resistance; dimensional accuracy

Common standards

ISO 527; wear and life tested on your test rig

GREENPOLYMER grade

Spindles, gears: GRN-POM-G110 (copolymer POM); when stiffness is needed: GRN-PA6-E510. TPU wiper strips: Available as a project-based development

Example grade / typical values — to be corrected by GREENPOLYMER

Clean / dirty water tank (robot, dock, wet-dry cleaner)

Typical materials: PP, transparent PC, ABS, PCTG
Why

Water and cleaner resistant; water level often needs to be visible; welding or sealing needed

Key requirements

Hydrolysis resistance; chemical resistance; transparency; seal dimensions; long-term contact with hot water (docking station)

Common standards

ISO 22088 (environmental stress cracking); per your cleaner resistance specification

GREENPOLYMER grade

Transparent window: GRN-PC-L110 (validate for long-term hot water and strong alkaline cleaners); PP for the tank body: Available as a project-based development (non-flame-retardant PP)

Example grade / typical values — to be corrected by GREENPOLYMER

Motor bracket / fan housing

Typical materials: Flame-retardant PA66-GF, flame-retardant PBT-GF, flame-retardant PC/ABS-GF, PP-GF
Why

Close to motor heat and vibration; needs stiffness, heat resistance and flame retardancy

Key requirements

HDT; creep resistance; vibration fatigue; GWFI / GWIT (when carrying connections)

Common standards

IEC 60335-1 clause 30; IEC 60695-2-12 / -13; UL 94

GREENPOLYMER grade

GRN-PA66-E510 (halogen-free flame retardant); GRN-PBT-E510; GRN-PCA-E510; GRN-PP-E510

Example grade / typical values — to be corrected by GREENPOLYMER

Charging base, dock power compartment, control box

Typical materials: Flame-retardant PC/ABS, flame-retardant PC, flame-retardant PP
Why

Charges unattended; the power section needs flame retardancy and glow-wire performance

Key requirements

V-0; GWFI ≥ 850 °C and GWIT ≥ 775 °C (unattended, carrying connections > 0.2 A; see IEC 60335-1, clause 30.2.3; the applicable clause and product certification requirements prevail); comparative tracking index (CTI)

Common standards

IEC 60335-1 clause 30.2.3; GB 4706.1; IEC 60695-2-12 / -13; IEC 60112

GREENPOLYMER grade

GRN-PCA-N510; GRN-PC-N510; GRN-PP-N510. Glow-wire data to be verified by GREENPOLYMER

Example grade / typical values — to be corrected by GREENPOLYMER

Handheld vacuum / wet-dry cleaner body and handle

Typical materials: PC/ABS, ABS, PC, glass-fiber-reinforced PA (loaded structures)
Why

Grip loads; drops; appearance; battery compartment needs flame retardancy

Key requirements

Impact; drop; appearance; handle stiffness; battery compartment flame retardancy

Common standards

IEC 60335-2-2; ISO 179; UL 94

GREENPOLYMER grade

Appearance parts: GRN-PCA-T310, GRN-PCA-H320; battery compartment: GRN-PCA-N510; structural parts: GRN-PA6-E510

Example grade / typical values — to be corrected by GREENPOLYMER

Hair dryer housing, nozzle and motor-area parts

Typical materials: PC, PC/ABS (housing); PA66-GF, PBT-GF, PPS (around heating elements and motor)
Why

Housing must be light and good-looking; long-term high temperatures near the air outlet

Key requirements

Long-term heat resistance; ball pressure; GWFI / GWIT; appearance; resistance to hair care products

Common standards

IEC 60335-2-23; IEC 60335-1 clause 30; IEC 60695-10-2

GREENPOLYMER grade

Housing: GRN-PC-N510, GRN-PCA-T310; hot zone: GRN-PA66-E510, GRN-PBT-E510. PPS: Available as a project-based development

Example grade / typical values — to be corrected by GREENPOLYMER

Kettle body, water window, lid (food contact)

Typical materials: PP, PCTG / copolyester, PPSU, PES; BPA-free materials
Why

Direct contact with hot water; must be heat resistant and odor-free; BPA-based PC cannot be used for food contact parts sold in the EU

Key requirements

Food contact compliance (migration); boiling water resistance; no odor; transparency (water level window)

Common standards

GB 4806.1; GB 4806.7-2023; GB 9685; Regulation (EU) No 10/2011; Regulation (EU) 2024/3190 (BPA); FDA 21 CFR 177

GREENPOLYMER grade

Food-contact grades are available, with compliance testing supported to GB 4806 and (EU) No 10/2011 requirements; food-contact grades are provided per project. Note: GRN-PC-L110 is a PC and is not used for EU food contact parts

Example grade / typical values — to be corrected by GREENPOLYMER

Kettle base, controller holder, handle (non-food-contact)

Typical materials: Flame-retardant PBT-GF, flame-retardant PA66-GF, PP; PP or PC/ABS for handles
Why

Close to the heating plate and electrical connections; needs heat resistance and glow-wire performance

Key requirements

GWFI / GWIT; CTI; heat resistance; dimensional stability

Common standards

IEC 60335-2-15; IEC 60335-1 clause 30; IEC 60112

GREENPOLYMER grade

GRN-PBT-E510 (high CTI); GRN-PA66-E510; GRN-PP-N510

Example grade / typical values — to be corrected by GREENPOLYMER

Washing machine tub, detergent drawer

Typical materials: Filled PP, PP-GF; PP and ABS for detergent drawers
Why

Resistant to water, detergent and hot water; large parts that must resist deformation

Key requirements

Resistance to hot water and detergent; creep resistance; warpage of large parts; vibration fatigue

Common standards

IEC 60335-2-7; GB 4706.24; ISO 22088

GREENPOLYMER grade

Outer tub: GRN-PP-E510 (flame-retardant glass fiber PP; whether flame retardancy is needed is confirmed per project). Non-flame-retardant filled PP: Available as a project-based development

Example grade / typical values — to be corrected by GREENPOLYMER

Washing machine control box, door lock, terminal parts

Typical materials: Flame-retardant PBT-GF, flame-retardant PA66-GF, flame-retardant PP
Why

Carries electrical connections; moisture present; often needs high CTI and glow-wire performance

Key requirements

GWFI / GWIT; CTI; V-0; damp heat resistance

Common standards

IEC 60335-1 clause 30; IEC 60695-2-12 / -13; IEC 60112

GREENPOLYMER grade

GRN-PBT-E510 (high CTI); GRN-PA66-E510; GRN-PP-N510

Example grade / typical values — to be corrected by GREENPOLYMER

Notes

  • In unattended appliances, insulating material supporting connections that carry more than 0.2 A generally needs GWFI ≥ 850 °C and GWIT ≥ 775 °C (see IEC 60335-1, clause 30.2.3; the applicable clause and product certification requirements prevail). If the material falls short, the standard allows a glow-wire test on the part itself (for example, at 750 °C with flames lasting no more than 2 s); if that is not met, surrounding parts must be rated V-0 or V-1 or pass the needle-flame test (IEC 60695-11-5). The Chinese equivalent is GB 4706.1.
  • Glow-wire results depend on wall thickness and color; test at the actual wall thickness and color.
  • Food contact compliance applies to a specific grade and conditions of use (temperature, time, food type); migration tests and a declaration of compliance are needed. Standard engineering plastic grades cannot be used directly for food contact parts. Food-contact grades are available, with compliance testing supported to GB 4806 and (EU) No 10/2011 requirements.
  • Carbon-fiber-reinforced materials may conduct electricity and cannot be used directly as electrical insulating parts.

GREENPOLYMER grades for home appliances and cleaning

GradeMaterialRecommended partsFlammability (target)HDT 1.80 MPaNotched impact
GRN-ABS-A110High-gloss ABS (non-flame-retardant)Robot top covers, mold-in-color appearance partsHB @ 1.5 mm80–90 °C12–22 kJ/m²
GRN-ABS-H120High-impact ABS (non-flame-retardant)Bumpers, dust bins, handlesHB @ 1.5 mm80–90 °C25–40 kJ/m²
GRN-PCA-T310Heat-resistant PC/ABS (non-flame-retardant)Body housings, hair dryer housings, handheld vacuum bodiesHB @ 1.5 mm95–115 °C35–55 kJ/m²
GRN-PCA-H320Low-temperature high-impact PC/ABS (non-flame-retardant)Bumpers, housings prone to dropsHB @ 1.5 mm95–110 °C45–65 kJ/m²
GRN-PCA-N510Halogen-free flame-retardant PC/ABSCharging docks, power supply compartments, battery compartmentsV-0 @ 1.5 mm80–95 °C10–30 kJ/m²
GRN-PCA-E510Flame-retardant glass-fiber-reinforced PC/ABSChassis, motor brackets, parts needing stiffnessV-0 @ 1.5 mm100–120 °C6–12 kJ/m²
GRN-PC-N510Halogen-free flame-retardant PCHair dryer housings, heat-resistant power supply partsV-0 @ 1.5 mm115–128 °C20–50 kJ/m²
GRN-PC-L110Transparent PC (non-flame-retardant)Dust bin windows, indicator covers (non-food-contact)HB @ 1.5 mm125–135 °C60–80 kJ/m²
GRN-PA66-E510Halogen-free flame-retardant glass-fiber-reinforced PA66Motor brackets, parts around heating elements, wiring partsV-0 @ 1.5 mm230–250 °C8–12 kJ/m² (dry)
GRN-PBT-E510Flame-retardant glass-fiber-reinforced PBT (high CTI)Control boxes, door locks, kettle bases, wiring partsV-0 @ 1.5 mm200–215 °C6–10 kJ/m²
GRN-PPE-N510Halogen-free flame-retardant mPPE (commonly called PPO)Electrical parts in wet areas, parts around pumps and valvesV-0 @ 1.5 mm90–120 °C8–15 kJ/m²
GRN-PP-N510Halogen-free flame-retardant PPPower supply compartments, junction boxes, cost-sensitive flame-retardant partsV-0 @ 1.5 mm55–65 °C3–6 kJ/m²
GRN-PP-E510Flame-retardant glass-fiber-reinforced PPAround washing machine outer tubs, docking station structural partsV-0 @ 1.5 mm120–145 °C5–9 kJ/m²
GRN-POM-G110Copolymer POMGears, main brush spindles, snap fitsHB @ 1.5 mm90–105 °C5–8 kJ/m²
GRN-PA6-E510Flame-retardant glass-fiber-reinforced PA6Loaded structural parts, handle framesV-0 @ 1.5 mm190–205 °C8–12 kJ/m² (dry)
  • Typical values. Refer to the actual TDS. GWFI, GWIT and CTI data are to be verified by GREENPOLYMER; request test reports per grade.
  • The grades in the table above are not food-contact grades. Food contact parts: food-contact grades are available, with compliance testing supported to GB 4806 and (EU) No 10/2011 requirements; food-contact grades are provided per project.
  • For full properties, see Products. For how to choose, see the selection guide.

Why GREENPOLYMER

  • Custom compounding

    GREENPOLYMER does reinforcing, toughening, filling and blending. Formulations can be adjusted to the part's glow-wire, heat resistance, chemical resistance and appearance requirements. Materials marked "Available as a project-based development" in the table can be developed with GREENPOLYMER engineers.

  • 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, and can produce high-gloss, matte and metallic effects. Color matching at the compounding and pelletizing stage keeps color more stable from batch to batch.

  • 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

    Dyson, Roborock, NARWAL.

3D printing in appliance development

UseExampleRecommended filament
Appearance modelsAppearance reviews of bodies, docking stations and hair dryersGRN3D-PLA-M01 (Matte); GRN3D-PLA-S01; GRN3D-PLA-K01
Functional checksAir ducts, dust bins, snap fits, assembly validationGRN3D-PCA-E01 (PC/ABS); GRN3D-ABS-E01; GRN3D-PETG-S01
Heat-resistant samplesSamples near hair dryer outlets, motor cover samplesGRN3D-PC-E01; GRN3D-PA6-G25
Production jigsAssembly fixtures, gaugesGRN3D-PA6-C20 (carbon fiber content to be verified by GREENPOLYMER); GRN3D-PETG-C01
Flexible partsWiper strip, seal and anti-slip pad samplesGRN3D-TPU-F95; GRN3D-TPU-F85
  • Printed parts cannot be used directly for food contact, and cannot replace injection-molded parts for glow-wire and flammability certification.
  • The properties of printed parts depend on print orientation and infill; test functional parts as actually printed.

For filament details, see the filament overview, Appearance series, Everyday Functional series, Engineering series and Flexible series. To prototype in filament and then injection-mold the same material family, see From compounding to filament.

Industry FAQ

Q1. How do I set glow-wire requirements for appliance parts?

Check two things: whether the appliance is unattended, and whether the part supports connections carrying more than 0.2 A. If so, the usual target is GWFI ≥ 850 °C and GWIT ≥ 775 °C (see IEC 60335-1, clause 30.2.3; the applicable clause and product certification requirements prevail). If the material falls short, the standard allows a glow-wire test on the part itself or a needle-flame test on surrounding parts. Results depend on wall thickness and color.

Q2. The robot vacuum bumper keeps cracking. What should I use?

Bumpers take repeated impacts. Check notched impact and fatigue. Try low-temperature high-impact PC/ABS or high-impact ABS. Also check the radius at snap-fit roots and molding stress. Test low-temperature impact for cold markets.

Q3. Can I still use PC for a kettle water window?

Not for food-contact parts sold in the EU. Regulation (EU) 2024/3190 bans BPA in food-contact materials; most transition periods ended in July 2026. Common alternatives are copolyesters, PP or PPSU. For China, follow GB 4806.7-2023 and related standards. Food-contact grades available; compliance testing to GB 4806 and EU Regulation (EU) No 10/2011 can be arranged.

Q4. How do I choose materials for dock water tanks with hot water and detergents?

Confirm water temperature, detergent chemistry and service life first. Test clear parts for chemical resistance under stress. If transparency is not needed, PP-based materials usually resist water and chemicals better. For electrical parts in wet areas, consider mPPE (often called PPO) or reinforced PBT.

Related products

Customers and partners

  • Dyson
  • Roborock
  • NARWAL

Request a quote / sample

Please tell us:

  • Product type and part location
  • Working temperature; contact with water, detergents or food
  • Appliance safety clauses to be met (e.g. glow-wire)
  • Color and appearance requirements
  • Target markets and sustainability requirements
  • Estimated annual volume
  • TDS / SDS: Chinese and English versions are available by email.
  • For samples and MOQ, 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.

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