High-Performance Engineering Plastics: A Complete Guide to PA66/6-GF60, PBT-GF30, and PC/PBT Alloy
As global manufacturing continues to demand materials that offer superior strength, heat resistance, and chemical stability, engineering plastics have become indispensable across industries ranging from automotive to electronics. NINGBO LOSMAN TRADING CO., LTD., a premier provider of specialty chemicals with core expertise in Thermoplastic Elastomer (TPE) and engineering plastics, is pleased to present this comprehensive guide on our engineering plastics portfolio and their applications.
I. Understanding Engineering Plastics
Engineering plastics are a group of polymeric materials that exhibit superior mechanical and thermal properties compared to commodity plastics. Unlike general-purpose plastics such as polyethylene or polypropylene, engineering plastics are designed to withstand demanding conditions—including high temperatures, mechanical stress, and exposure to chemicals—making them ideal for critical components in industrial applications.
The key characteristics that distinguish engineering plastics include:
1.High mechanical strength and rigidity: Suitable for structural components.
2.Excellent thermal stability: Withstanding continuous operating temperatures that would deform commodity plastics.
3.Chemical resistance: Resisting degradation from oils, solvents, and other aggressive substances.
4.Dimensional stability: Maintaining precise tolerances under varying environmental conditions.
II. Our Engineering Plastics Portfolio
Ningbo Losman offers a comprehensive range of engineering plastics to meet diverse industrial requirements. Our portfolio includes:
- PA66/6-GF60 (60% Glass-Fiber Reinforced PA66/6 Copolymer)
This high-performance material features 60% glass fiber reinforcement, delivering exceptional rigidity and strength. With a tensile modulus of up to 20,000 MPa, it is specifically engineered for automotive structural components, high-voltage connector housings, and battery pack applications. Its superior hydrolysis resistance and dimensional stability make it particularly suitable for new energy vehicle (NEV) applications.
- PBT-GF30 (30% Glass-Fiber Reinforced PBT)
Our PBT-GF30 material is a flame-retardant, 30% glass-fiber reinforced polybutylene terephthalate that achieves UL 94 V-0 rating and GWFI 850°C. It offers an excellent balance of mechanical strength, heat resistance, and electrical insulation properties. Typical applications include appliance shells, electrical and electronic accessories, and automotive connectors.
- Flame-Retardant PP
Our flame-retardant polypropylene grades provide UL 94 V-2 rating and GWFI 850°C performance. These materials are suitable for appliance shells and electrical/electronic accessories where flame retardancy is required alongside good processability.
- PC/PBT Alloy
Our PC/PBT alloy combines the best properties of polycarbonate and PBT, offering high impact strength, chemical resistance, and low warpage. With UL 94 V-0 rating, it is well-suited for electrical and electronic applications requiring dimensional stability and flame retardancy.
III. Applications Across Industries

Automotive Industry
Engineering plastics play a critical role in automotive lightweighting and electrification. Our materials are used in:
1.Battery pack components and brackets
2.High-voltage connector housings
3.Under-hood structural parts
4.Interior and exterior fasteners
5.Plastic cage nuts and retainer clips
Electrical and Electronics
The electrical and electronics sector demands materials with excellent insulation properties and flame retardancy. Our engineering plastics are used in:
1.Appliance shells and housings
2.Connectors and switches
3.Circuit breakers and terminal blocks
4.Electronic component enclosures
Industrial Applications
From machinery to consumer goods, our engineering plastics serve diverse industrial needs:
1.Industrial pump and valve components
2.Power tool housings
3.Gears and bearings
4.Structural support components

V. Frequently Asked Questions (FAQ)
Q1: Can your engineering plastics be used in NEV battery packs?
A: Yes. Our PA66/6-GF60 is specifically engineered for battery pack components, offering high rigidity, hydrolysis resistance, and creep resistance to withstand the humid and thermally cycling conditions around battery packs. We also offer PBT-GF30 and PC/PBT alloy for connectors, brackets, and housings within battery packs.
Q2: Can you provide custom-colored engineering plastics?
A: Yes. We offer custom color-matching services, including standard black and other RAL color codes. Please provide your specific color requirements (color code or sample), and we will match it for you.
Q3: Do your products comply with RoHS and REACH regulations?
A: Yes. Our engineering plastics comply with EU RoHS Directive and REACH regulations, and we can provide corresponding test reports.
Q4: What is your minimum order quantity (MOQ)?
A: Our MOQ is typically 1 ton, depending on the product grade and packaging requirements. For sample testing, we can provide 1-5 KG free samples.
Q5: Can you provide Technical Data Sheets (TDS) and samples?
A: Absolutely. Please submit your request through the "Contact Us" page on our official website at www.lsmchem.com, or send an email to sales-nuski@lsmchem.com. We will provide the complete TDS within 24 hours and coordinate sample delivery.
Author
Nsuki
Senior Manager
WhatsApp: +86-18163849273
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