LFT‑G® PP LGF40 – Static-Dissipative & Flame-Retardant Long Glass Fiber Polypropylene
LFT‑G® PP‑LGF40ASFR is a 40% long glass fiber reinforced copolymer polypropylene compound engineered with a brominated flame‑retardant system and static‑dissipative properties. This advanced material delivers an exceptional combination of high stiffness, excellent impact strength, inherent flame retardancy, and reliable electrostatic discharge (ESD) protection - making it the ideal choice for electronic enclosures, automotive components, and industrial parts where fire safety and static control are mission‑critical.
Compared to standard short‑glass PP and conventional flame‑retardant grades, the long‑glass architecture delivers superior mechanical retention, lower anisotropy, and enhanced dimensional stability - even in demanding thermal and electrical environments.
Key Features of LFT‑G® PP‑LGF40ASFR:
- Long glass fiber reinforcement – High stiffness and load-bearing capacity
- UL94 V‑0 flame retardancy – Reliable fire protection at 2.0mm
- Static-dissipative properties – ESD protection for sensitive applications
- High mechanical performance – Excellent strength and rigidity
- Excellent thermal stability – Maintains performance at elevated temperatures
- Low warpage & dimensional precision – Consistent part geometry and tight tolerances
Material Comparison Analysis
Performance Comparison at a Glance
Impact Strength
Stiffness vs. Short Fiber
Flame Retardancy
ESD Performance
Conclusion: LFT‑G® CPP‑BG04ASFR delivers the optimal combination of flame retardancy, static dissipation, and long‑fiber mechanical performance for demanding ESD‑sensitive and fire‑safety applications.
Technical Data Sheet – LFT‑G® PP‑LGF40ASFR
| Property | Value | Unit | Test Method |
|---|---|---|---|
| Specific Gravity | 1.36 | g/cm³ | ASTM D‑792 |
| Molding Shrinkage | 0.10 – 0.30 | % | ASTM D‑955 |
| Tensile Strength | 125 | MPa | ISO 527 |
| Tensile Modulus | 12,590 | MPa | ISO 527 |
| Tensile Elongation | 1.4 – 2.4 | % | ISO 527 |
| Flexural Strength | 172 | MPa | GB/T 9341 |
| Flexural Modulus | 8,456 | MPa | GB/T 9341 |
| Notched Izod Impact | 26 | kJ/m² | ISO 180 |
| Notched Charpy Impact | 23 | kJ/m² | ISO 179 |
| Heat Deflection Temp. (1.8 MPa) | 159 | °C | ISO 75‑2 |
| Flame Retardancy | V0 @ 2.0mm | - | ASTM D‑635 |
| Surface Resistivity | 10⁴ – 10⁶ | Ω | - |
Processing Guidelines – Injection Molding
Pre‑drying
2–4 hrs @ 80–90 °C
Moisture < 0.1%
Melt Temperature
210–250 °C
Measured at nozzle
Mold Temperature
38–69 °C
Measured on cavity
Injection Pressure
69–103 MPa
Free‑flow check valve
Cooling & Ejection
Proper gate & draft
Minimize fiber breakage
Target Applications
LFT‑G® PP‑LGF40ASFR is engineered for applications demanding flame retardancy, static dissipation, and structural integrity in challenging environments.
Electronic Enclosures
ESD‑safe housings for sensitive electronics, control units, and battery management systems requiring V0 flame protection and static dissipation.
Automotive Components
Under‑hood connectors, sensor housings, and interior parts requiring flame retardancy and resistance to thermal cycling and chemicals.
Industrial Electrical
Circuit breaker housings, switchgear components, and junction boxes where fire safety and static control are critical.
ESD‑Safe Workstations
Anti‑static trays, bins, and work surface components for electronics assembly and cleanroom environments.
FAQ
Q: What makes PP LGF40 different from standard flame‑retardant PP compounds?
A: PP LGF40ASFR combines three critical features in one compound: 40% long glass fiber reinforcement for superior stiffness and impact strength, UL94 V‑0 flame retardancy, and static‑dissipative properties (10⁴–10⁶ Ω surface resistivity). Standard FR PP compounds lack the structural performance and ESD protection required for demanding electronic and automotive applications.
Q: What flame retardancy rating does PP LGF40 achieve?
A: PP LGF40ASFR achieves UL94 V‑0 at 2.0mm thickness per ASTM D‑635. The brominated flame‑retardant system provides reliable fire protection without compromising mechanical performance, making it suitable for electronic enclosures and automotive components requiring high safety standards.
Q: What is the surface resistivity range and why does it matter?
A: PP LGF40ASFR provides surface resistivity in the range of 10⁴–10⁶ Ω, which falls within the static‑dissipative range. This prevents electrostatic discharge (ESD) that could damage sensitive electronic components, eliminating the need for post‑molding anti‑static coatings or additives.
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