Glass Fiber Reinforced PBT (PBT-GF30) Material Guide

Glass Fiber Reinforced PBT (PBT-GF30) is a high-performance engineering thermoplastic made by adding glass fiber into polybutylene terephthalate (PBT) resin. It significantly improves mechanical strength, stiffness, and thermal stability while maintaining excellent chemical resistance and processability.

Why Add Glass Fiber to PBT Resin?

Adding glass fiber to PBT is a widely used reinforcement method. The strong bonding between glass fiber and PBT resin allows the material to retain its original chemical resistance and molding performance, while greatly improving mechanical properties and reducing notch sensitivity.

PBT with 40% Long Glass Fiber

Benefits of Glass Fiber Reinforced PBT

1. Improved Strength and Stiffness

Glass fiber significantly increases tensile strength and rigidity, making PBT suitable for structural applications and load-bearing components.

2. Enhanced Heat Resistance

Glass fiber improves thermal deformation resistance, allowing PBT to maintain stable performance under elevated temperatures.

3. Better Chemical and Corrosion Resistance

Reinforced PBT maintains excellent resistance to chemicals, solvents, and corrosive environments.

4. Improved Electrical Insulation

PBT-GF materials maintain strong insulation performance, making them suitable for electrical and electronic applications.

Common Applications of PBT-GF30

Automotive Industry

Used in engine components, connectors, fuel systems, and under-the-hood parts due to excellent heat resistance and dimensional stability.

Electrical & Electronics

Widely used in connectors, switches, sockets, and circuit breakers requiring high insulation and flame resistance.

Consumer Goods

Applied in household appliances such as coffee machines, vacuum cleaners, power tools, and garden equipment.

Industrial Equipment

Suitable for gears, bearings, pump housings, and valve components due to wear resistance and low friction.

Aerospace & Defense

Used in lightweight structural parts where high strength-to-weight ratio is required.

Company Advantages

• Excellent Quality: Replacement for metal and steel in many applications
• Own Factory: Monthly capacity 500–800 tons
• Customization: Fiber length, color, additives available
• Laboratory Support: Full TDS & COA for every batch
• Fast Delivery: Global shipping to major ports and cities
• Competitive Price: Factory-direct supply
• Experienced Team: 20+ years industry expertise
• Full Technical Service: From material selection to injection molding guidance

FAQ

Can long fiber reinforced materials be used for processes other than injection molding?

Yes. Besides injection molding, LFT materials can also be used for extrusion of sheets, profiles, and pipes.

How to select fiber length and reinforcement type?

Selection depends on the product’s mechanical, thermal, and cost requirements. Engineering evaluation is recommended.

Can long fiber materials be used for appearance parts?

They are mainly used for structural performance. Appearance requirements need case-by-case evaluation.

Talk to an Expert

Email: sales02@lfrtplastic.com
WhatsApp: +86 139 5009 5727