Capability
Built on decades of refrigerator door gasket experience
Backed by HIGA's decades of experience in refrigerator door gaskets, the Chemical Division develops and supplies polymer materials for home appliances, automotive, electronics and construction through four specialized plants.
- 01Plants
- 4
- Specialized plants in Hefei, Chongqing and Huainan
- 02Compounding lines
- 15
- Advanced compounding lines at Chongqing Shengtai
- 03Capacity
- 20,000t/yr
- Phase II → 80,000 t/yr
- Phase I capacity at Huainan Hongmai, with 6 fully automated lines
- 04Quality
- IATF 16949
- Quality system at Chongqing Shengtai
Modified Polymers18 grades · 8 families
- 60–85A
- Tensile >8 MPa
- Elongation >200%
Refrigerator, dryer and sterilizer gaskets, cables and automotive seals.
- PS migration <0.2%
- Tensile >12 MPa
Refrigerator, dryer and sterilizer gaskets; oil resistant with excellent resistance to migration into HIPS.
- 0.16 W/m·K
- Density 0.9–1.1
Refrigerator, dryer and sterilizer gaskets; cuts refrigerator energy consumption by 3%.
- Mold Grade 0
- Antibacterial >99.99%
Refrigerator, dryer and sterilizer gaskets.
- 68 HS(A)
- Strain 650%
- Weld pull ≥70 N
Refrigerator, freezer and wine cooler door gaskets and refrigerator inner door seals.
- 25–80A
- 0.95–1.15 g/cm³
Refrigerator drawer air guards, glass shelf trims and other seals and functional parts.
- 32–42A
- Tensile 8.5 MPa
- 95 °C / 168 h
Injection-molded washing machine seals: soft touch, mold and wear resistant, excellent sealing.
- 72 A
- Strain 1100%
Food packaging and contact products such as seals, trays and cups.
- PP+EPDM-T20
- Notched impact 25
Bumpers, instrument panels and door trims; washer tubs, refrigerator drawers, rice cooker housings and small appliance parts.
- PP+GF30
- HDT 150 °C
- Tensile 80 MPa
Front-end modules, battery housings and cooling fans; washer tubs and drums; power tools.
- UL 94 V0
- Halogen-free
- PP-810F
Power strips, power supply housings and appliance internals; battery housings and HV connectors; sockets and LED housings.
- UL 94 V0
- Hardness ≥79 D
- Tensile ≥25 MPa
Refrigerator and freezer door frames and fittings.
- UL 94 V0
- Vicat ≥69 °C
- Tensile ≥30 MPa
Co-extruded door frames and fittings.
- Flex modulus 1780 MPa
- Notched impact 14
Appliance housings, panels and internal structural parts; replaces HIPS in refrigerator liners.
- Vicat 130 / 120 °C
- Tensile 50 / 55 MPa
- UL 94 HB / 1.6 mm V-0
Instrument panels, center consoles and lamp housings; electronics housings; washer control panels and AC housings.
- Vicat 104 / 94 °C
- UL 94 HB / 1.6 mm V-0
Automotive interior and exterior trims, AC panels, washer housings, small appliances and electronics.
- HIPS · ABS · PC/ABS
- PC/ABS 2.0 mm V-0
Personal-care bottles, TV and AC bases, computer housings, automotive trims, pallets and bins.
- Full-spectrum custom colors
- Food-contact grades
Plastic containers and packaging films, food packaging and nonwoven spinning.
How to read this index. Grades are grouped by material family, exactly as in the HIGA product documentation. Hover or tap a grade for full specs and applications, or click through to its product page.
Performance
Key performance, measured
- 01
Flame retardant
UL 94 V-0Halogen-free and brominated eco systems across PVC, PP, ABS and PC/ABS grades
- 02
Low odor
Odor grade ≤3.0Dual-vacuum stripping for low-VOC automotive interiors
- 03
Glass-fiber reinforced
30%+ lighterLong/short GF PP and PA replacing metal
- 04
Weather & chemical resistant
UV · no visible cracksWeather and chemical resistance for special electronics
- 05
Anti-mold & antibacterial
>99.99% · Grade 0Anti-mold soft PVC for refrigerator, dryer and sterilizer gaskets
- 06
Low thermal conductivity
0.16 W/m·KReduces refrigerator energy consumption by 3%
- 07
Food-grade TPE
EU migration limitsMeets EU limits on non-volatile migration for food contact products
Product series
Grades and technical data
01PVC · Rigid
PVC Injection Compound
Flame retardant, chemical resistant, strong and electrically insulating; insoluble in water, alcohol, gasoline and oil — preferred for refrigerator and freezer door frames and fittings.
Features
| Property | Standard | Value |
|---|---|---|
| Hardness (D) | ASTM D2240 | ≥79 |
| Density (g/cm³) | ASTM D792 | 1.6–1.9 |
| Tensile strength (MPa) | ISO 527 | ≥25 |
| Elongation at break (%) | ISO 527 | ≥5 |
| Flexural strength (MPa) | ISO 178 | ≥55 |
| Vicat (°C) | ASTM D790 | ≥80 |
| Flammability | UL 94 | V0 |
02PVC · Rigid
PVC Co-extrusion Compound
Thermally stable and dimensionally stable, flame retardant, acid/alkali and corrosion resistant, durable and aging resistant, with easy welding and bonding — preferred for co-extruded door frames and fittings.
Features
| Property | Value |
|---|---|
| Hardness (D) | ≥70 |
| Density (g/cm³) | 1.4–1.6 |
| Tensile strength (MPa) | ≥30 |
| Elongation at break (%) | ≥6 |
| Flexural strength (MPa) | ≥45 |
| Vicat (°C) | ≥69 |
| Flammability (UL 94) | V0 |
03PVC · Soft
Standard Soft PVC Compound
Hardness 60A–85A for extrusion and injection; for refrigerator, dryer and sterilizer gaskets, cables and automotive seals.
Features
| Property | Value |
|---|---|
| Hardness | 60–85A |
| Density (g/cm³) | 1.2–1.8 |
| Tensile strength (MPa) | >8 |
| Elongation at break (%) | >200 |
| Heat aging: mass loss | ±5% |
| Heat aging: tensile retention | >80% |
| Heat aging: elongation retention | >60% |
04PVC · Soft
Migration-Resistant Soft PVC
Hardness 60A–85A for extrusion and injection; for refrigerator, dryer and sterilizer gaskets.
Features
| Property | Value |
|---|---|
| Hardness | 60–85A |
| Density (g/cm³) | 1.2–1.5 |
| Tensile strength (MPa) | >12 |
| Elongation at break (%) | >250 |
| PS migration | <0.2% |
| Heat aging: mass loss | ±1% |
| Heat aging: tensile retention | >90% |
| Heat aging: elongation retention | >80% |
05PVC · Soft
Low Thermal Conductivity Soft PVC
Hardness 60A–85A with low thermal conductivity for energy saving; for refrigerator, dryer and sterilizer gaskets.
Features
| Property | Value |
|---|---|
| Hardness | 60–85A |
| Density (g/cm³) | 0.9–1.1 |
| Tensile strength (MPa) | >7 |
| Elongation at break (%) | >200 |
| Thermal conductivity | 0.16 W/m·K |
| Heat aging: mass loss | ±5% |
| Heat aging: tensile retention | >80% |
| Heat aging: elongation retention | >70% |
06PVC · Soft
Anti-Mold Soft PVC
Hardness 60A–85A with antibacterial and anti-mold performance; for refrigerator, dryer and sterilizer gaskets.
Features
| Property | Value |
|---|---|
| Hardness | 60–85A |
| Density (g/cm³) | 1.2–1.8 |
| Tensile strength (MPa) | >8 |
| Elongation at break (%) | >200 |
| Mold resistance | Grade 0 (GB 21551.2) |
| Antibacterial | >99.99% |
| Heat aging: mass loss | ±5% |
| Heat aging: tensile retention | >80% |
| Heat aging: elongation retention | >70% |
01TPE · Extrusion
Appliance Extrusion TPE
For refrigerator, freezer and wine cooler door gaskets and refrigerator inner door seals.
| Property | Value |
|---|---|
| Hardness | 68 HS(A) |
| Tensile strength | ≥8 MPa |
| Strain at break | 650% |
| Density | 1.05±0.1 g/cm³ |
| Hardness change (−20 to 22 °C) | ≤15% |
| Weld corner pull | ≥70 N |
02TPE · Co-extrusion
PP/HIPS/ABS Co-extrusion TPE
Co-extruding TPE with PP, HIPS or ABS greatly improves compression strength and shape retention, removes the drawbacks of assembling two separately molded materials and raises productivity. Hardness 25–80A, density 0.95–1.15 g/cm³. Soft, non-slip and eco-friendly — for refrigerator drawer air guards, glass shelf trims and other seals and functional parts.
Process
- 01Dual-feed supply
- 02Extrusion plasticizing
- 03Haul-off, cooling, cutting & packing
03TPE · Seals
Washing Machine Seal TPE
Injection-grade material for washing machine seals. Hardness 32–42A; injection molding for high productivity, soft touch, mold and wear resistant, tough and resilient, tear resistant, waterproof with excellent sealing.
| Property | Value |
|---|---|
| Hardness | 41 A |
| Tensile strength | 8.5 MPa |
| Strain at break | 650% |
| UV resistance | No visible cracks |
| Heat resistance (95 °C, 168 h): tensile change | 6.15% |
| Heat resistance (95 °C, 168 h): strain change | −11.86% |
| Heat resistance (95 °C, 168 h): weight loss | 0.09% |
| Heat resistance (95 °C, 168 h): hardness | +1.2 |
04TPE · Food contact
Food-Grade TPE
Overall migration of non-volatile substances in simulants meets EU standards. For food packaging and contact products such as seals, trays and cups; processed by injection and overmolding, and compatible with PP/PE in blending and co-extrusion.
| Property | Value |
|---|---|
| Hardness | 72 A |
| Tensile strength | 9.5 MPa |
| Strain at break | 1100% |
| Heat aging: tensile retention | 70% |
| Heat aging: elongation retention | 95% |
| Heat aging: mass loss | −2.1% |
01Modified PP
Glass-Fiber Reinforced PP
PP+GF10/GF20/GF30 with high strength, high heat resistance and good moldability.
- Automotive & new energy: front-end modules, battery housings, cooling fans
- Home appliances: washer tubs, AC fans, microwave coil formers
- Electrical & telecom: precision connectors, power tool housings
- Industrial machinery & fluids: chemical pipes, pump impellers, casters
- Sports & smart manufacturing: safety helmets, 3D-printed parts
| Property | PP+GF10 | PP+GF20 | PP+GF30 |
|---|---|---|---|
| MFI (g/10min) | 5 | 5 | 3 |
| Tensile strength (MPa) | 45 | 70 | 80 |
| Flexural strength (MPa) | 60 | 90 | 110 |
| Flexural modulus (MPa) | 1800 | 3000 | 4000 |
| HDT 0.45 MPa (°C) | 130 | 140 | 150 |
| Uses | Power tools | Power tools | Power tools, washer drums |
02Modified PP
Flame-Retardant PP
V-0 halogen-free flame-retardant PP.
- Home appliances: power strips, power supply housings, AC and microwave internals
- Automotive & new energy: battery housings, HV connectors, harness brackets
- Electrical & telecom: sockets, breakers, LED housings, 5G base station housings
- Industrial & environmental: ventilation ducts, control boxes, cable sheathing
- Building & furniture: flame-retardant trunking, fireproof cabinets, load-bearing supports
- Medical: protective equipment, clean-room components
| Property | PP-810F | |
|---|---|---|
| MFI (g/10min) | 10 | 15 |
| Tensile strength (MPa) | 18 | 20 |
| Flexural strength (MPa) | 25 | 30 |
| Flexural modulus (MPa) | 1200 | 1200 |
| Notched impact (kJ/m²) | 8 | 10 |
| Density (g/cm³) | 1.05 | 1.07 |
| UL 94 (3.2 mm) | V0 | V0 |
| UL 94 (1.6 mm) | V2 | V0 |
| Uses | Electronics & appliances | Electronics & appliances |
03Modified PP
Toughened & Reinforced PP
PP+TD10/TD20/TV30 and PP+EPDM-TD20 with high strength, high toughness and good moldability.
- Automotive: bumpers, instrument panels, battery housings
- Home appliances: washer tubs, refrigerator drawers, fan blades
- Packaging & daily goods: crates, toys, storage boxes
- Industrial & electrical: chemical pipes, power tool and power supply housings
- Medical & sports: syringe housings, safety helmets, skis
| Property | PP-T10 | PP-T20 | PP-TV30 | PP+EPDM-T20 |
|---|---|---|---|---|
| MFI (g/10min) | 20 | 15 | 20 | 15 |
| Tensile strength (MPa) | 23 | 25 | 23 | 19 |
| Notched impact (kJ/m²) | 12 | 8 | 8 | 25 |
| Flexural modulus (MPa) | 1600 | 2000 | 1700 | 1700 |
| Density (g/cm³) | 0.98 | 1.04 | 1.13 | 1.04 |
| Uses | Auto interiors, small appliance parts | Auto interiors, rice cooker housings | Refrigerator drawers | Door trims, instrument panels |
04Modified ABS
Modified ABS
Impact resistant and dimensionally stable; flame-retardant grades reach UL 94 V-0 (self-extinguishing, low smoke and toxicity); glossy, easy to color and mold into complex parts; UV-stabilized against yellowing and embrittlement; cost-effective for high-volume production.
- Automotive: instrument panels, door panels, grilles, mirror housings
- Home appliances: AC panels, washer housings, smart small appliance housings
- Electrical: power adapters, routers, switches and sockets, TV and computer housings
- Building & consumer: pipes, decorative panels, toys, luggage, 3D-printing filament
| Property | Modified ABS | |
|---|---|---|
| MFI (g/10min) | 8 | 40 |
| Tensile strength (MPa) | 40 | 40 |
| Notched impact (kJ/m²) | 15 | 9 |
| Unnotched impact (kJ/m²) | 70 | 60 |
| Flexural modulus (MPa) | 2100 | 1700 |
| Density (g/cm³) | 1.06 | 1.21 |
| Vicat (°C) | 104 | 94 |
| UL 94 | HB | 1.6 mm V-0 |
| Uses | Automotive HVAC, small appliances | Electronics & appliances |
05PCR Recycled
PCR Series
Recycled plastics replace virgin resin for lower carbon emissions and lower overall cost than virgin engineering plastics; toughness and stiffness are tuned by compounding, and quality grades carry GRS and other global environmental and carbon-footprint certifications.
- Personal-care packaging: shampoo and detergent bottles
- Appliances & electronics: TV and AC bases, computer housings
- Automotive: fenders, door panels and other trims
- Building & daily goods: pallets, bins, outdoor decking
| Property | HIPS | ABS | PC-ABS |
|---|---|---|---|
| MFI (g/10min) | 5 | 20 | 30 |
| Tensile strength (MPa) | 21 | 39 | 62 |
| Notched impact (kJ/m²) | 8 | 13 | 30 |
| Flexural strength (MPa) | 35 | 62 | 90 |
| Flexural modulus (MPa) | 1900 | 2200 | 2400 |
| Density (g/cm³) | 1.04 | 1.05 | 1.17 |
| UL 94 | HB | HB | 2.0 mm V-0 |
| Uses | Display speaker covers | Display housings | Display housings & bases |
06Engineering Alloys
PP/PS Alloy
Balanced stiffness and toughness, stress-crack and solvent resistant — can replace HIPS (e.g. refrigerator liners).
- Appliance housings & panels: TV back covers, AC control panels, refrigerator doors, washer housings
- Internal structures: small appliance supports, motor boxes, AC vent parts, vacuum cleaner housings
- Functional parts: flame-retardant and antistatic appliance housings and structures
| Property | Value |
|---|---|
| MFI (g/10min) | 5 |
| Tensile strength (MPa) | 24 |
| Flexural strength (MPa) | 36 |
| Flexural modulus (MPa) | 1780 |
| Notched impact (kJ/m²) | 14 |
| Density (g/cm³) | 1.02 |
| Uses | Refrigerator liners |
07Engineering Alloys
PC/ABS Alloy
High strength and high heat resistance.
- Automotive: instrument panels, center consoles, lamp and mirror housings
- Electronics & telecom: laptop and phone housings, routers, 5G parts
- Appliances & smart home: washer control panels, AC housings, robot vacuums
- Industrial & medical: power tool housings, sterilizer housings, drone structures
| Property | PC/ABS | |
|---|---|---|
| MFI (g/10min) | 12 | 30 |
| Tensile strength (MPa) | 50 | 55 |
| Notched impact (kJ/m²) | 60 | 50 |
| Vicat (°C) | 130 | 120 |
| Flexural modulus (MPa) | 2100 | 2000 |
| UL 94 | HB | 1.6 mm V-0 |
08Masterbatch
Color Masterbatch
Color masterbatch is a concentrated colorant for polymers: a high loading of pigments or dyes evenly carried in a resin carrier. Digital color management and precise formulation deliver full-spectrum custom coloring.
- Plastic packaging & containers: high color strength and low migration for containers, barrier films and laminates
- Food-safe packaging: non-toxic, odorless, high-cleanliness colors meeting food-contact standards
- Nonwovens & spinning: fine filtration and thermal stability for medical, hygiene and eco packaging nonwovens
Manufacturing
Twin-screw pelletizing line
A fully automatic twin-screw strand pelletizing line for large-scale production of modified plastics. Precise dosing, melt compounding, cooling, pelletizing and screening, homogenizing, automatic packing and palletizing run as one continuous process — safeguarding flame retardancy, mechanical properties and batch-to-batch consistency for appliance housings, electrical fittings and plastic structural parts.
Step 01 / 08
Loss-in-weight feeder
The precision dosing unit of the line. Multiple loss-in-weight scales in parallel meter PP resin, halogen-free flame retardants, tougheners, stabilizers and other ingredients automatically and continuously to the formulation. Real-time weight-loss feedback adjusts the feed rate for very high ratio accuracy, eliminating formulation deviation at the source and keeping every batch consistent.
Step 02 / 08
Twin-screw extruder
The core machine of the pelletizing line. Ingredients are heated and melted in the barrel while the twin screws shear, knead and convey them, fully plasticizing, mixing and modifying the resin with functional additives. The homogeneous melt is extruded through the die as multiple uniform molten strands.
Step 03 / 08
Water-cooled strand bath
Molten strands leaving the extruder are hot and soft and cannot be hauled off or cut directly. In a circulating constant-temperature water bath they cool quickly and evenly and harden into solid strands with enough strength and toughness to prevent breaking or deforming during conveying and haul-off.
Step 04 / 08
Pelletizer
Dried continuous strands enter the pelletizer at a steady speed. High-precision feed rolls control the speed while high-speed alloy blades cut the strands into cylindrical pellets of standard length — precise and uniform, free of long or short pellets, and ready for downstream injection molding.
Step 05 / 08
Vibrating screen
Freshly cut pellets contain a few long pellets, twins, fines and dust. Multi-deck vibrating screens grade and separate off-spec pellets and dust, keeping only uniform, visually acceptable pellets for consistent product quality.
Step 06 / 08
Homogenizing silo
Screened pellets are conveyed pneumatically into homogenizing silos, where the whole batch is circulated and blended to eliminate local variations in color, density and performance — giving the entire batch uniform flame retardancy, mechanical properties and color.
Step 07 / 08
Automatic bagging machine
Bag placing, weighing, filling, sewing and sealing are completed automatically, with accurate weighing, high efficiency and good sealing for high-volume packing.
Step 08 / 08
Semi-automatic palletizer
Filled bags are conveyed to the palletizing station and stacked neatly and stably, saving labor and easing warehousing, forklift handling and shipping — the core of automated end-of-line warehousing.
Quality control
Inspection workflow
Nine inspection steps, from specimen preparation to data review, decide whether each batch is released for warehousing and shipment.
- Specimen preparation
- Appearance
- Impact
- Tensile
- Flexural
- Moisture
- Melt flow
- UV weathering
- Data review
- Inspection report
Sample injection molding machine
- Test
- Molds standard test bars from finished pellets under industry-standard conditions with strictly controlled parameters, so every bar is consistent and defect-free.
- Purpose
- Provides standard specimens for all physical and mechanical tests, avoiding errors caused by specimen defects.
Color matching light booth
- Test
- Inspects the appearance of the molded bars under multiple standard simulated light sources, checking color and molding defects.
- Purpose
- Verifies color consistency and rejects bars with bubbles, scratches, sink marks, short shots or weld lines before further testing.
Impact tester
- Test
- Applies an instantaneous impact load to standard bars and records the impact strength at fracture.
- Purpose
- Evaluates the toughness and impact resistance of halogen-free flame-retardant PP under sudden external force.
Universal tensile tester
- Test
- Pulls standard bars at constant speed to measure tensile strength, elongation at break and other tensile properties.
- Purpose
- Assesses tensile strength and ductility for structural stability under static tensile loads.
Flexural tester
- Test
- Measures flexural strength and flexural modulus with a standard three-point bending test under constant load.
- Purpose
- Checks stiffness and resistance to bending deformation for structural parts.
Halogen moisture analyzer
- Test
- Measures the moisture content of finished pellets quickly and accurately by halogen heating weight loss.
- Purpose
- Controls moisture to prevent bubbles, silver streaks and cracking during injection molding.
Melt flow rate tester
- Test
- Measures the melt flow rate (MFR) at the temperature and load specified by national standards.
- Purpose
- Monitors processing consistency between batches and indicates how easily the material can be molded.
UV accelerated weathering chamber
- Test
- Simulates outdoor UV light and temperature and humidity cycles to age specimens, then observes changes in appearance and properties.
- Purpose
- Evaluates resistance to UV aging, discoloration and property loss for long-term outdoor or exposed use.
Data review & inspection report
- Review
- All test data is consolidated and compared with industry standards and HIGA technical specifications to decide whether the batch conforms.
- Result
- A formal inspection report is issued as the quality basis for warehousing and shipment.
Applications
From compound to finished part
01Applications
Home Appliances
Part-by-part material selections for refrigerators, washing machines, air conditioners and small appliances.
Explore appliance solutions02Applications
Automotive
Low-odor interior compounds, glass-fiber reinforced parts replacing metal, PC/ABS door handles and materials for new-energy charging piles.
Explore automotive solutions03Tool
Material Finder
Filter by industry, application and property to shortlist the right grade.
Open Material FinderManufacturing
Four specialized plants, one material platform
01Hefei
Anhui Wanlang New Material Technology Co., Ltd.
- Rigid PVC
- U-PVC
- Low-VOC
02Hefei
Hefei Dayue Electronic Technology Co., Ltd.
- PC/ABS V0
- Optical-grade
- 3,000 m² Dongguan hub
03Chongqing
Chongqing Shengtai New Material Technology Co., Ltd.
- 15 compounding lines
- IATF 16949
- PCR
04Huainan
Huainan Hongmai New Material Technology Co., Ltd.
- 20,000 → 80,000 t/yr
- 6 automated lines
- Odor ≤3.0
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Selected grade
- General inquiriesxincailiao@higasket.com
- Modified Polymers Divisionyifu@higasket.com+86 19556295251
- Magnetic Materials Divisionyibo@higasket.com+86 13275794504
- AddressNo.678, Tangkou Road, Hefei, China