In the manufacturing industry, in order to match some output products that require higher quality than usual, manufacturers will mix into PP plastic with glass fiber or glass beads. These two different forms of glass enhancement are inherently tough and durable, so when mixed, glass-filled polypropylene materials become lighter and stronger.

HPP is Homopolymer polypropylene. These processes produce homopolymers for several industries including: automotive, packing, medical, consumer goods, and food containers. Within these industries, the homopolymers' corrosion resistance makes them ideal for containers, tanks, and pipes. Its dimensional stability allows it to be used for gears and bearings. 

The modified polypropylene material reinforced by carbon fiber has a series of advantages, such as light weight, high modulus, high specific strength, low coefficient of thermal expansion, high temperature resistance, heat shock resistance, corrosion resistance, good vibration absorption, etc., and can be applied to auto parts such as automobile sub-instrument assembly.

Polypropylene, also known as PP, is a polyolefin or saturated polymer. It is a low-density thermoplastic with good resistance to heat. Other characteristics of PP include: chemical resistance, elasticity, toughness, fatigue resistance, and electrical insulation capability. 

The modified polypropylene material reinforced by carbon fiber has a series of advantages, such as light weight, high modulus, high specific strength, low coefficient of thermal expansion, high temperature resistance, heat shock resistance, corrosion resistance, good vibration absorption, etc., and can be applied to auto parts such as automobile sub-instrument assembly.

• Lightweight alternative to metal and reinforced PA • Excellent impact strength and fatigue resistance • Ideal for structural automotive and industrial components PP Long Glass Fiber Reinforced (LFT-PP) Polypropylene (PP) is one of the most widely used general-purpose plastics due to its large production volume, competitive cost, excellent chemical resistance, and good processing performance. However, conventional PP materials have limitations such as relatively low strength, low heat resistance, limited stiffness, and poor low-temperature impact resistance. To overcome these limitations, reinforcing fillers such as glass fiber or calcium carbonate are added to PP. When the reinforcing fibers exceed a critical length, the mechanical properties of the composite can be significantly improved. Long Glass Fiber Reinforced Polypropylene (LFT-PP) is a high-performance thermoplastic composite material. The pellets are typically cylindrical with a length of 12–25 mm and a diameter of approximately 3 mm. The glass fibers inside the pellets maintain the same length as the pellet itself, which greatly enhances structural performance. The glass fiber content usually ranges from 20% to 70%, and the material color can be customized according to customer requirements. Advantages of PP-LGF 1. Long fiber structure significantly improves mechanical strength and stiffness. 2. High impact resistance, ideal for automotive and structural applications. 3. Excellent creep resistance and dimensional stability for precision parts. 4. Outstanding fatigue resistance, suitable for long-term load-bearing components. 5. Stable performance under high temperature and high humidity environments. 6. Reduced fiber breakage during molding, allowing better retention of fiber length and performance. Long Glass Fiber vs Short Glass Fiber Typical Applications Automotive Industry: front-end modules, door modules, gearshift components, electronic accelerator pedals, instrument panel carriers, cooling fan frames, battery trays, bumper brackets, underbody shields, and sunroof frames. LFT-PP is often used to replace reinforced PA or metal components. Home Appliances: washing machine drums, triangular brackets, air-conditioner fan components, and other structural parts, replacing short-fiber reinforced PA, ABS, or metal materials. Electronics & Electrical: high-precision connectors, ignition system components, coil bobbins, relay bases, transformer coil frames, electrical connectors, solenoid valve housings, and scanner components. Other Industries: power tool housings, pump housings, water meter housings, impellers, bicycle frames, skis, locomotive pedals, safety helmets, and protective equipment. Production Process Certifications About Xiamen LFT Composite Plastic Co., Ltd. Xiamen LFT Composite Plastic Co., Ltd., established in 2009, is a global supplier specializing in long fiber reinforced thermoplastic materials. The company integrates research & development, production, and global marketing under its proprietary brand. Our products have obtained ISO9001 and IATF16949 certifications and multiple national patents and trademarks. LFT materials are widely used in automotive components, aerospace, military equipment, new energy systems, medical devices, wind power equipment, and sports products.

PP (Polypropylene) Reinforced with Long Glass Fiber Polypropylene (PP) is one of the most widely used general-purpose thermoplastics, known for its low cost, excellent chemical resistance, and good processability. However, its inherent limitations—such as low strength, low heat resistance, poor stiffness, and weak low-temperature impact performance—restrict its use in structural applications. By introducing reinforcing materials such as glass fibers, the mechanical properties of PP can be significantly enhanced. When the fiber length exceeds the critical reinforcement size, the material performance improves dramatically. Long Glass Fiber Reinforced PP (LFT-PP) is a high-performance thermoplastic composite, typically supplied in pellet form with a length of 12–25 mm and a diameter of about 3 mm. The glass fibers inside maintain nearly the same length as the pellets, ensuring superior load transfer and mechanical strength. Fiber content can range from 20% to 70%, and colors can be customized according to customer requirements. Advantages of PP-LGF Long fiber length significantly improves mechanical strength and stiffness High impact resistance, suitable for automotive and furniture applications Excellent creep resistance and dimensional stability for precision parts Superior fatigue resistance under long-term loading Stable performance in high temperature and humid environments Reduced fiber breakage during molding due to optimized processing flow LGF vs SGF Compared with short glass fiber (SGF) reinforced materials, long glass fiber (LGF) composites provide: Higher mechanical strength and toughness Better load-bearing capacity Improved fatigue and creep resistance More stable performance in structural applications Applications Automotive Industry: front-end modules, door modules, gearshift systems, electronic pedals, instrument panel frames, cooling fan systems, battery trays, bumper brackets, underbody shields, sunroof frames, etc. Home Appliance Industry: washing machine drums, structural brackets, air conditioner fan systems, replacing metal or short glass fiber reinforced materials. Electrical & Electronics: connectors, relay bases, coil frames, microwave transformer housings, solenoid valve components, scanner parts, etc. Other Applications: power tools, pump housings, bicycle frames, ski components, helmet structures, safety footwear parts, replacing PA, PPO and metal materials. Processing Certification About Us Xiamen LFT Composite Plastic Co., Ltd. was established in 2009 and is a global supplier specializing in long fiber reinforced thermoplastic materials. We integrate R&D, production, and global marketing. Our products have passed ISO 9001 and IATF 16949 certifications and are widely used in automotive, aerospace, military, new energy, medical devices, wind energy, sports equipment, and industrial applications.

The modified polypropylene material reinforced by carbon fiber has a series of advantages, such as light weight, high modulus, high specific strength, low coefficient of thermal expansion, high temperature resistance, heat shock resistance, corrosion resistance, good vibration absorption, etc., and can be applied to auto parts such as automobile sub-instrument assembly.

What is Long carbon fiber (LCF) Carbon fiber was first used in aviation, military and other fields, and later was cited in the production of racing car parts. In recent years, it began to come into the consumer market, and is also one of the materials that international manufacturers are keen on. Carbon fiber composite materials are characterized by very light, rigid, and can withstand the same pressure as steel, the cost is higher. However, the material is more durable and has a high recycling value, so it can save costs to a certain extent. Carbon fiber composites include carbon fiber powders, short fibers, long fibers, and long fiber reinforced composites. Long carbon fiber composites have better mechanical properties than short carbon fiber composites, but there are certain requirements for the injection molding machine and mold of the product. Carbon fiber has excellent mechanical properties and chemical stability, lower density than aluminum, higher strength than steel, is the highest specific strength and highest specific modulus among the high-performance fibers that have been produced in large quantities, and has the characteristics of low density, corrosion resistance, high temperature resistance, friction resistance, fatigue resistance, high electrical and thermal conductivity, low coefficient of thermal and wet expansion, etc. It is an important strategic material for the development of national defense and national economy. The characteristics of corrosion resistance, high temperature resistance and low coefficient of expansion make it an alternative material to metal materials in harsh environments; the electrical and thermal conductivity properties expand its application in the field of communications and electronics; as the highest specific strength (strength to density) and highest specific stiffness (modulus to density) among the high-performance fibers currently in mass production, carbon fiber is an important material for aerospace, wind power blades, new energy vehicles, transportation, sports and leisure, etc, Carbon fiber is an ideal material for aerospace, wind power blades, new energy vehicles, transportation, sports and leisure, and other fields with light weight needs. Xiamen LGT-G LCF compounds have the following appearance: Flat grain, very light weight, shows flawless finish, no floating fibers, bubbles, etc. The color is natural black and the length is around 6 to 25 mm. The application of PP filling long carbon fiber compounds Datasheet for reference Homo-PP & Copo-PP PP is divided into homopolymer PP and copolymer PP according to the different types of monomers involved in polymerization. Homopolymer PP is made by polymerization of propylene monomer only, and there is only one kind of link in the polymer molecular chain, with high crystallinity and good mechanical properties and heat resistance. Copolymerized PP is mainly made of propylene monomer and ethylene monomer, and there are ethylene links in addition to propylene links in the polymer molecular chain, which has high impact resistance. HPP composites and CPP composites, both of them are available for us. Details Number Color Length Package Sample MOQ Port of Loading Delivery time HPP-NA-LCF Natural color, or customized 6-25mm 20kg/bag Available 20kg Xiamen Port 7-15 days after shipment  Certifications Test Xiamen LFT composite plastic CO., Ltd. Xiamen LFT composite plastic Co., Ltd. is a brand-name company that focuses on LFT&LFRT. Long Glass Fiber Series (LGF) & Long Carbon Fiber Series (LCF). The company's thermoplastic LFT can be used for LFT-G injection molding and extrusion, and can also be used for LFT-D molding. It can be produced according to customer requirements: 5~25mm length. The company's long-fiber continuous infiltration reinforced thermoplastics have passed ISO9001&16949 system certification, and the products have obtained lots of national trademarks and patents. Please contact Ms. Wallis for more information. Email: sale02@lfrtplastic.com Whatsapp: (+86) 13950095727

.card { background:#ffffff; border:1px solid #eaeaea; border-radius:14px; padding:22px; margin-bottom:20px; transition:all 0.3s ease; box-shadow:0 2px 10px rgba(0,0,0,0.04); } .card:hover { transform:translateY(-6px); box-shadow:0 10px 25px rgba(0,0,0,0.10); border-color:#cfead3; } h2 { color:#2f7d32; margin-bottom:12px; font-size:20px; } p, li { color:#666; font-size:15px; line-height:1.8; } ul { padding-left:20px; } .table { width:100%; border-collapse:collapse; margin-top:10px; } .table th, .table td { border:1px solid #e5e5e5; padding:10px; text-align:left; font-size:14px; } .table th { background:#f3f8f4; color:#2f7d32; } .cta-btn { display:inline-block; margin-top:10px; padding:12px 22px; background:#2f7d32; color:#fff; text-decoration:none; border-radius:8px; transition:0.3s; font-weight:bold; } .cta-btn:hover { background:#256428; } /* FAQ */ .faq { margin-top:10px; } .faq-item { border-bottom:1px solid #eee; } .faq-item input { display:none; } .faq-item label { display:block; padding:14px 0; cursor:pointer; font-size:15px; font-weight:bold; color:#2f7d32; position:relative; } .faq-item label::after { content:"+"; position:absolute; right:0; font-size:18px; } .faq-content { max-height:0; overflow:hidden; transition:all 0.3s ease; } .faq-content p { margin:0; padding:0 0 12px 0; color:#666; font-size:14px; line-height:1.7; } .faq-item input:checked ~ .faq-content { max-height:200px; } .faq-item input:checked + label::after { content:"−"; } Introduction to Long Glass Fiber Reinforced Homopolymer PP Long Glass Fiber Reinforced Homopolymer Polypropylene (PP-H LGF) is a high-performance thermoplastic composite designed to deliver excellent stiffness, improved impact strength, and cost efficiency while maintaining the lightweight nature of polypropylene. Composition and Structure PP-H LGF consists of a homopolymer polypropylene matrix reinforced with long glass fibers, enabling effective stress transfer and significantly enhanced mechanical performance compared to short fiber or mineral-filled PP. Key Features High Stiffness & Strength Excellent Cost-Performance Ratio Lightweight Material Improved Impact Resistance (vs. short fiber PP) Good Dimensional Stability Excellent Processability (Injection Molding) Typical Applications Automotive interior & structural parts Appliance housings Industrial equipment components Power tool housings Pallets & logistics components Our Working Process Customer Requirement Communication Material Selection & Technical Recommendation Sample Preparation & COA Support Order Confirmation & Delivery Technical Processing Support Technical Datasheet (PP-H LGF40%) Property Unit Value Tensile Strength MPa 135 Tensile Modulus GPa 8945 Flexural Strength MPa 189 Heat Deflection Temperature °C 159 Density g/cm³ 1.21 FAQ What is PP-H LGF? It is a homopolymer polypropylene reinforced with long glass fibers to improve mechanical strength and stiffness. What are the advantages of PP-LGF? It provides a balance of cost, lightweight properties, and improved mechanical performance over conventional PP. What is PP-H LGF used for? It is widely used in automotive, appliances, industrial parts, and logistics applications. Can PP-LGF replace metal? In many structural applications, it can replace metal due to its high stiffness-to-weight ratio. Is PP-H LGF suitable for injection molding? Yes, it is specifically designed for injection molding of structural components. Need Technical Support for PP-H LGF Materials? Contact our engineering team for material selection guidance, processing recommendations, and technical datasheets. Contact About LFT-G Xiamen LFT Composite Plastic Co., Ltd. is a global manufacturer of long fiber reinforced thermoplastics (LFT), offering PP, PA6, PA66, PPA, PPS, TPU and other engineering plastics reinforced with long glass or carbon fibers. Our products are widely used in automotive, electrical, industrial, and new energy applications.