Purposes and Typical Properties

Higher strength
Higher thermal stability
Better dimension stability

Mineral (Talc) Filled Grades (5~50% mineral filled)

Improved Properties of Talc-Filled Polypropylene

Increased Stiffness (Modulus)
  • Talc has a plate-like structure, which significantly increases
    → Flexural strength and flexural modulus
  • Reduces deformation in structural parts.
Improved Dimensional Stability
  • Considerably reduced shrinkage
    → Lower warpage
  • Beneficial for complex injection-molded shapes.
Enhanced Heat Resistance and Higher HDT
  • Heat Deflection Temperature (HDT) increases from around 100°C to 110–130°C.
  • Less deformation when exposed to elevated temperatures.
Impact Strength Usually Decreases
  • Talc does not provide toughening effects.
    → Impact strength tends to drop.
  • Can be compensated by adding elastomers (EPDM, POE, etc.)
Improved Surface Quality
  • Fine talc grades produce
    → Smooth, high-quality surface finish
  • Good for painting and coating applications.
Cost Reduction
  • Talc is a relatively low-cost mineral filler.
    → Helps reduce overall material costs, although density increases slightly.

Key Characteristics and Typical Applications

Products Components Applications
JSPP10T1 PP+Talc5%
Automotive Components (Largest Market)
  • Dashboard assemblies
  • Door trims
  • Pillar trims
  • Glove box and console parts
  • Interior panels
  • HVAC ducts
  • Excellent stiffness, heat resistance, and dimensional stability make it ideal for interior injection-molded parts.
Home Appliances
  • Refrigerator and washing machine interior parts
  • TV back covers
  • Vacuum cleaner housings
  • Air conditioner inner frames
  • Water purifier outer covers
  • Smooth surface and low warpage are useful for appliance interiors and exteriors.
Industrial / Electrical Components
  • Electrical junction boxes
  • Industrial equipment outer panels
  • Small machine housings
  • Office equipment casings
General Injection-Molded Products
  • Household containers and storage bins
  • Furniture components (e.g., chair parts)
  • General high-stiffness covers and housings
JSPP10T2 PP+Talc10%
JSPP10T4 PP+Talc20%
JSPP10T6 PP+Talc30%
JSPP10T8 PP+Talc40%
JSPP10T10 PP+Talc50%
10–20% Talc
General Injection-Molded Products, Home Appliances
20–30% Talc
Automotive Interior Parts, Increased Stiffness Products
30–40% Talc
High-Strength Structural Uses

Glass Filled Grades (10~50% glass fiber filled)

Improved Properties of Glass Fiber Reinforced PP

Increased Mechanical Strength and Stiffness
  • Tensile strength, flexural strength, and modulus increase by 2 to 5 times.
  • Suitable for structural components.
  • Impact strength may also improve depending on fiber length, loading level, and compatibilizer.
Enhanced Heat Resistance
  • Heat Deflection Temperature (HDT) increases:
    → Normal PP: 90–100°C
    → GF-reinforced PP: 130–160°C or higher
  • Less deformation under high-temperature conditions.
Improved Dimensional Stability
  • Reduced shrinkage → Lower warpage
  • Suitable for precision injection-molded parts.
Better Creep Resistance
  • Less deformation under long-term mechanical load.
  • Beneficial for automotive and mechanical components.
Improved Wear Resistance and Maintained Chemical Resistance
  • Glass fiber reinforcement increases friction and wear resistance.
  • Retains PP’s excellent inherent chemical resistance.

Key Characteristics and Typical Applications

Products Components Applications
JSPP10G2 PP+G/F10%
Automotive Components
The largest application sector:
  • Fan shrouds
  • Door module carriers
  • Dashboard structural parts
  • Bumper reinforcements
  • Air ducts
  • Pedal components
  • Steering and gear internal structures
Electrical and Electronics Components
  • TV back covers
  • Internal frames of refrigerators and washing machines
  • Battery housings
  • Electrical insulation parts
  • Switch and relay housings
Industrial Machinery and Equipment Parts
  • Pump housings
  • Gear cases
  • Industrial fan blades
  • Various equipment covers
General Injection-Molded Structural Parts
  • Power tool housings
  • Office chair components
  • Connectors and clips
  • Agricultural machinery parts
Home Appliance Components
  • Air conditioner internal frames
  • Vacuum cleaner structural parts
  • Mixer and rice cooker housings
  • Washing machine drain pump covers
JSPP10G4 PP+G/F20%
JSPP10G6 PP+G/F30%
JSPP10G8 PP+G/F40%
JSPP10G10 PP+G/F50%

Characteristics by Glass Fiber Content

10–20% GF
Medium stiffness; home appliances, general industry parts
30% GF
Most widely used in automotive components
40–50% GF
High-strength structural Uses; metal-replacement applications