LFT-G® PP GF20 FR – UL94 V0 Flame Retardant Composite
LFT-G® PP GF20 FR (Model: LFT-G®CPP-LGF20FR) is a specialized safety-grade composite featuring 20% long glass fiber reinforcement within a Copolymer Polypropylene matrix, engineered to meet stringent UL94 V0 flammability standards.
In the world of engineering plastics, adding flame retardants often degrades mechanical strength, making standard short-fiber FR-PP brittle and prone to cracking. LFT-G® solves this dilemma by utilizing Long Glass Fiber (LGF) technology. The skeletal fiber network (10-12mm length) compensates for the loss of strength caused by FR additives, delivering a material that is both fire-resistant and structurally robust.
This grade is specifically designed for electrical components, new energy vehicle (EV) battery modules, and home appliances where fire safety cannot compromise durability.
Why Choose Long Fiber FR PP Over Short Fiber?
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UL94 V0 Certified Safety: Self-extinguishing properties prevent the spread of fire. The material stops burning within 10 seconds on a vertical specimen, ensuring compliance with global safety codes (IEC 60695). -
● Retained Mechanical Strength: Standard FR PP GF20 is notoriously weak. Our LGF20 grade maintains high tensile and impact strength because the long fibers form an internal skeleton that holds the part together, even under thermal stress.
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● High GWIT (Glow Wire Ignition Temp): Ideal for unattended appliances. It withstands high glow wire test temperatures (750°C / 850°C) without igniting, making it perfect for electrical connectors and switchgears.
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● Copolymer Toughness: By using a Copolymer base instead of Homopolymer, we enhance the low-temperature impact resistance, ensuring the part doesn't shatter during assembly or cold weather operation.
Material Specifications: LFT-G®CPP-LGF20FR
| Property | Standard | Typical Value | Unit |
| Polymer Matrix | - | Copolymer PP FR | - |
| Flammability Rating | UL 94 | V-0 (2.0mm) | Class |
| Fiber Content | ISO 3451 | 20% Long Fiber | % |
| Density | ISO 1183 | 1.21 - 1.22 | g/cm³ |
| Tensile Strength | ISO 527 | 98 - 105 | MPa |
| Flexural Modulus | ISO 178 | 4500 - 5500 | MPa |
| Notched Impact Strength | ISO 179 | 26 - 32 | kJ/m² |
Target Applications: Fire Safety Critical Parts
LFT-G® CPP-LGF20FR is designed for industries requiring strict adherence to fire safety codes without sacrificing structural integrity.
Electrical Enclosures
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Application: Breaker housings & switchgears.
Benefit: High Glow Wire Ignition Temperature (GWIT) prevents fire spread in unattended devices.
EV Battery Modules
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Application: Cell holders & module covers.
Benefit: Lightweight replacement for metal, providing V0 flame retardancy and electrical insulation.
Heater Components
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Application: Fan heater grids & supports.
Benefit: Maintains shape under heat while ensuring V0 safety compliance for home use.
Frequently Asked Questions (FAQ)
Q: Does Flame Retardant (FR) additive reduce the strength of PP GF20?
A: Generally yes, but LFT mitigates this. Adding large amounts of FR agents typically makes standard short-fiber PP brittle. However, LFT-G® uses 20% Long Glass Fibers to reinforce the matrix, creating a composite that retains significantly higher impact and tensile strength compared to standard FR-PP.
Q: What is the difference between UL94 V0, V1, and V2?
A: V0 is the highest safety rating. In vertical burn tests, V0 stops burning within 10 seconds with no dripping of flaming particles. V1 stops within 30 seconds. V2 also stops within 30 seconds but allows flaming drips (which can spread fire). Our LFT-G® LGF20FR is rated V0 for maximum safety.
Q: Is this material halogen-free?
A: We offer both Halogenated and Low-Halogen options depending on your specific requirements and regional regulations (such as RoHS or REACH). Please contact our technical team to specify your environmental compliance needs.
Require V0 Certified Structural Material?Contact LFT-G® for TDS and compliance certificates. ![]() |
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