For global manufacturers in automotive, home appliances, and industrial sectors, Long Glass Fiber Reinforced Polypropylene (LGFPP) is a core material for lightweighting and cost optimization. As a professional LGFPP manufacturer, we have compiled this detailed purchasing guide to help international buyers select the right products, avoid common pitfalls, and understand model comparisons.
LGFPP pellets retain fiber lengths of 3–25mm, forming a 3D network structure after molding, with significant performance advantages over short fiber reinforced PP (SGFPP):
- Mechanical Strength: 20–30% higher tensile strength, 2–3x higher notched impact strength, and excellent low-temperature toughness
- Dimensional Stability: Minimal warpage, ideal for large structural parts
- Cost-Effectiveness: Lighter than metal, lower cost than PA66, and no pre-drying required
- 10–20% LGFPP: Balanced rigidity and toughness, suitable for general structural parts
- 30% LGFPP: Industry standard for high rigidity, widely used in automotive components
- 40–50% LGFPP: Ultra-high strength for heavy-load applications
- Melt Flow Rate (MFR): 5–30 g/10min; higher MFR for complex thin-wall parts
- Heat Deflection Temperature (HDT): 140–170°C; critical for high-temperature environments
- Impact Strength: >50 kJ/m² for anti-fall and anti-shock requirements
- Flame Retardancy: UL94 HB/V0 for electrical applications
- Automotive: Bumpers, door panels, battery trays (30–40% LGFPP, high impact)
- Home Appliances: Washing machine drums, fan blades (20–30% LGFPP, low warpage)
- Industrial: Tool boxes, pipe fittings (30–50% LGFPP, high load-bearing)
- Outdoor: UV-stabilized grades for long-term weather resistance
- Pitfall: Low-price “long fiber” products with post-molding fiber length <1mm
- Solution: Verify fiber length retention and request impact test reports
- Pitfall: Performance variation between batches causing production issues
- Solution: Choose manufacturers with ISO9001/TS16949 certification and strict quality control
- Pitfall: Unsuitable MFR leading to poor flow or fiber breakage
- Solution: Confirm MFR matches your injection molding equipment parameters
- Pitfall: Non-compliant materials failing market access tests
- Solution: Prioritize products with FDA, RoHS, and UL certifications
Model Fiber Content Tensile Strength HDT (0.45MPa) Typical Application
LGFPP10 10% 35–45 MPa 120–130°C Lightweight housings
LGFPP20 20% 50–65 MPa 130–140°C Home appliance parts
LGFPP30 30% 70–90 MPa 140–155°C Automotive structural parts
LGFPP40 40% 90–110 MPa 150–165°C Heavy-load components
LGFPP50 50% 110–130 MPa 160–175°C Industrial equipment
- Professional Manufacturing: Specialized LGFPP production lines with consistent fiber length control
- Customization: Tailor fiber content, additives, and performance to your needs
- Stable Supply: Large inventory and flexible delivery for global customers
- Technical Support: Free sample testing and processing optimization guidance
Selecting high-quality LGFPP requires balancing performance, application, and cost. By following this guide, you can avoid purchasing risks and find the optimal material solution. Contact us for customized quotes and technical support—your reliable LGFPP partner for global manufacturing success.
BESTE – Long Fiber Reinforced Thermoplastics.