PP material Polypropylene, PP for short, is a polymer of propylene by adding polymerization. White waxy material, transparent and light in appearance. Polypropylene is a thermoplastic synthetic resin with excellent properties. It is a colorless translucent thermoplastic lightweight general plastic with chemical resistance, heat resistance, electrical insulation, high strength mechanical properties and good high wear-resisting machining properties. PP-LGF material PP plus glass fiber is by adding glass fiber reinforced PP material, due to the addition of glass fiber, limited the mutual movement between polymer chains of PP plastic, therefore, the shrinkage rate of glass fiber reinforced PP (PP plus glass fiber) decreases, rigidity, impact resistance, tensile strength, compression strength, bending strength and flame retardant are improved. The mechanical properties of PP plus glass fiber specifically, tensile strength reached 65MPa--90MPa, bending strength reached 70MPa--20MPa, bending modulus reached 3000MPa--4500MPa, such mechanical strength can be completely comparable with ABS and enhanced ABS products, and more heat resistant. Generally, the heat resistance temperature of ABS and reinforced ABS is between 80℃--98℃, and the heat resistance temperature of glass fiber reinforced PP material can reach 135℃--145℃, and even 150 degrees can withstand more than 1000 hours. Compared with SGF(Short Glass Fiber) TDS for reference only Application of PP-Long glass fiber PP filling long glass fiber material, can be used to make refrigerators, air conditioning and other refrigeration machines in the axial flow fan and fan. In addition, it can also be used to manufacture the inner drum of high speed washing machine, wave wheel, belt wheel to adapt to its high mechanical performance requirements, used for rice cooker base and handle, electronic microwave oven and other places with high temperature resistance requirements, generally speaking, most glass fiber reinforced PP material is used in the structural parts of the product, is a kind of structural engineering materials. Cases Washing machine parts Automobile front end parts Scooter parts Frequently asked questions 1. Does long glass fiber injection have special requirements for injection molding machines and molds? A. There are certainly requirements. Especially from the product design structure, as well as the injection molding machine screw nozzle and mold structure injection molding process must consider the requirements of long fiber. 2. After long glass fiber reinforced, glass fiber can enter the surface of the plastic product during injection molding process, so that the surface of the product become rough and floating fiber. How to make the surface of the material smoothly? A. During injection molding process need to ensure that the plastic particles are well plasticized and dispersed, also ensure that the drying of plastic particles have no moisture removal, mold temperature adjustment to the appropriate temperature, mold surface is polished in place. 3. Can products with appearance requirements be made of long-fiber materials? A. The main feature of LFT-G thermoplastic long glass fiber and long carbon is to show the mechanical properties. If the customer has bright or other requirements for the appearance of the product, it needs to be evaluated in combination with specific products,  

PPA (Polyphthalamide) is polyphthalamide.PPA is a kind of thermoplastic functional nylon with both semi-crystalline structure and non-crystalline structure. It is prepared by polycondensation of phthalic acid and phthalenediamine. It has excellent thermal, electrical, physical and chemical resistance and other comprehensive properties.

Polypropylene, also known as PP or polypropene, 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.

Polyamide, which is also known by the trade name, Nylon, has excellent heat resistant properties, especially when combined with additives and filler materials. In addition to this, Nylon is very resistant to abrasion. Xiamen LFT offers a wide range of temperature-resistant nylons with many different filler materials.

High-density polyethylene (HDPE), also called polyethylene high-density (PEHD), is a thermoplastic polymer made from the monomer ethylene. When used for HDPE pipes, it is sometimes called "alkathene" or "polythene." With a high strength-to-density ratio, High-density polyethylene (HDPE) is used to produce corrosion-resistant piping. In addition, HDPE is commonly recycled.

PPS long carbon fiber reinforced materials combine excellent mechanical strength, high thermal stability, and outstanding chemical resistance. They are ideal for precision parts used in high-temperature, corrosive, or high-stress environments.

Our high-performance PPA (polyphthalamide) long glass fiber reinforced composite is engineered to deliver exceptional mechanical strength, thermal stability, and durability. Designed for demanding applications, this composite material offers a superior balance of stiffness, impact resistance, and processability. Ideal for automotive, electrical, and industrial applications, it sets a new benchmark in high-performance thermoplastic composites.

What is Long Glass Fiber (LGF)? Long glass fiber reinforced plastics (LFT) are engineered materials in which long glass fibers and additives are incorporated into a base thermoplastic. This significantly improves mechanical strength, heat resistance, dimensional stability, and the overall performance of the material. Why Reinforce with Long Glass Fiber? High heat resistance: LFT significantly increases the thermal performance, especially for nylon-based plastics. Reduced shrinkage & higher rigidity: Fiber reinforcement restricts polymer chain movement, improving dimensional stability and stiffness. Improved impact resistance: Reinforced plastics are less prone to stress cracking and have better toughness. High strength: Long glass fibers increase tensile, compressive, and bending strength. Flame retardancy: Most LFT materials are self-extinguishing due to additives and fiber content. Why Choose Long Glass Fiber over Short Glass Fiber? Longer fiber length significantly enhances mechanical properties. High specific stiffness and strength with excellent impact resistance, ideal for automotive applications. Superior creep resistance and dimensional stability for precision parts. Excellent fatigue resistance for long-life components. Improved stability under hot and humid environments. Minimal fiber damage during molding due to relative fiber movement in the mold. Appearance of PP-LGF Applications of PP-LGF Automotive Parts Front end modules, door modules, shift mechanisms, electronic accelerator pedals, dashboards, cooling fans, battery carriers, bumper brackets, underbody protection plates, sunroof frames, etc. – replacing reinforced PA or metal components. Household Appliances Washing machine drums, brackets, air conditioning fans, etc. – replacing short glass fiber reinforced PA and metal components. Communications, Electronics, Electrical Appliances High-precision connectors, igniter components, coil shafts, relay bases, microwave transformer frames, solenoid valve housings, scanner components, etc. Other Applications Power tool housings, water pump/meter housings, impellers, bicycle frames, skis, locomotive pedals, safety helmets, safety shoes – replacing short fiber reinforced PA or PPO. Datasheet for Reference About Us Xiamen LFT Composite Plastics Co., Ltd. is a leading supplier of Long Glass Fiber (LGF) and Long Carbon Fiber (LCF) reinforced thermoplastics. Our LFT materials support injection molding, extrusion molding, and are available in fiber lengths of 5–25mm, tailored to customer requirements. ISO9001 & IATF16949 certified, our products are patented and widely used in automotive, electronics, industrial, and defense applications. What We Offer Technical data and guidance for LFT & LFRT materials. Mold design recommendations for optimized production. Injection molding and extrusion support for consistent product quality.

PA6 Material Overview PA6 (Polyamide 6) is a widely used engineering plastic with excellent balanced performance. Its raw materials are readily available and cost-effective, making it accessible without dependence on foreign technology. However, PA6 has some limitations such as high water absorption, lower low-temperature impact toughness, and moderate dimensional stability. To overcome these limitations, PA6 is often reinforced with glass fiber (GF) to enhance mechanical properties. PA6-LGF (Long Glass Fiber Reinforced PA6) 1. Influence of Glass Fiber Content Glass fiber content is a key factor in the performance of reinforced composites. Increasing fiber content increases fiber density, thinning the PA6 matrix between fibers. This enhances impact toughness, tensile strength, and bending strength. Example: For PA6-LGF, increasing fiber content to 35% raised notch impact strength from 24.8 J/m to 128.5 J/m. However, excessive fiber content can reduce impact strength. Bending strength also improves as fibers transfer stress and absorb energy when broken, with experimental results showing bending modulus up to 4.99 GPa for 35% LGF. 2. Influence of Fiber Retention Length Fiber length significantly affects mechanical properties. When fiber length is below the critical length, increasing length improves resin-fiber bonding and tensile load resistance. When fiber exceeds the critical length, longer fibers absorb more impact energy and improve impact strength, as the number of fiber ends (crack initiation points) decreases. Example: At 40% fiber content, increasing fiber length from 4mm to 13mm improved tensile strength from 154.8 MPa to 164.4 MPa, with bending strength and notched impact strength increasing by 24% and 28%, respectively. Fibers longer than 7mm enhance warping resistance and mechanical stability under high temperature and humidity. Technical Data Reference (TDS) PA6-LGF can be reinforced with 20%-60% long glass fiber depending on product requirements. Compared to unreinforced PA6, PA6-LGF offers enhanced strength, heat resistance, impact resistance, dimensional stability, and reduced warping. The following TDS shows the data for PA6-LGF30. Applications of PA6-LGF PA6-LGF is widely used in automotive, electronic/electrical, and machinery/engineering parts. Automotive Parts Lightweight and miniaturization trends promote PA6-LGF use in engines, electrical systems, and body components. Electronic & Electrical Components Excellent flame retardancy and corrosion resistance make PA6-LGF suitable for switchgear, circuit breakers, contactors, connectors, and cable protection tubes. Mechanical & Engineering Parts Good impact resistance, wear resistance, and self-lubrication properties allow PA6-LGF to be used in machinery and engineering accessories. About Xiamen LFT Composite Plastics Co., Ltd. Xiamen LFT focuses on Long Glass Fiber (LGF) and Long Carbon Fiber (LCF) reinforced thermoplastics. Our LFT materials support injection molding (LFT-G) and extrusion molding, as well as LFT-D molding, with fiber lengths from 5–25mm. Our products are ISO9001 & IATF16949 certified, patented, and widely used in automotive, electronics, industrial, and engineering applications.