PC FR Glass Filled Granules: An Industry Overview for Indian Manufacturers

PC FR glass filled granules are widely used in applications that demand high mechanical strength, dimensional stability, and flame resistance. These engineering thermoplastics combine polycarbonate resin with glass fiber reinforcement and flame-retardant properties, making them suitable for demanding industrial environments across India. Commonly used materials in this category include 10%, 20%, and 30% glass-filled flame-retardant polycarbonate grades such as 500R, 3412R, and 3413R.

This article explains the material characteristics, grade variations, and key considerations for selecting glass filled polycarbonate solutions.

What Are PC FR Glass Filled Granules?

PC FR glass filled granules are polycarbonate-based compounds reinforced with glass fibers and enhanced with flame-retardant additives. Typical examples include non-halogen FR grades like 505R, 505RU, and 3412ECR, which are designed to meet UL94 V0 and 5VA fire performance requirements.

Core material features

• Improved tensile and flexural strength
• Enhanced heat deflection temperature
• Reduced shrinkage and better dimensional control
• Flame-retardant performance for safety-critical parts
• Good electrical insulation properties

These characteristics make glass filled polycarbonate ideal for high-performance molded components used in electrical, automotive, and industrial applications.

Understanding Glass Filled Polycarbonate Composition

The performance of pc glass filled resin depends on two main factors: glass fiber loading and flame-retardant formulation. Grades such as 500R and 503R (10% GF) focus on balanced stiffness and impact performance, while 3412R and 3412ECR (20% GF) or 3413HF and 3413R (30% GF) emphasize higher rigidity and load-bearing capability.

How glass fiber reinforcement helps

• Increases stiffness without excessive weight
• Improves creep resistance under load
• Enhances long-term structural stability
• Maintains performance under thermal stress

Flame-retardant properties further extend usability in regulated industries, including electrical infrastructure and transportation.

PC 10% GF: Applications and Benefits

Pc 10% GF grades offer a balance between strength enhancement and ease of processing. Typical examples include 500R, 503R, 505R, 505RU, and 525RU, which combine flame retardancy with good moldability and surface finish.

Typical applications

• Electrical housings and connectors
• Consumer appliance components
• Lighting fixtures and enclosures
• Automotive interior parts

This grade is preferred where moderate reinforcement is sufficient without compromising surface aesthetics or processing stability.

PC 20% GF: Strength and Stability for Industrial Use

Pc 20% gf grades provide higher stiffness and improved thermal performance. Widely used grades in this category include 3412R, 3412ECR, and 3412ECRRW, which are available in standard and renewable-feedstock-based variants and meet UL94 V0 and 5VA ratings.

Key advantages

• Better load-bearing capacity
• Improved dimensional accuracy in large parts
• Enhanced resistance to deformation
• Suitable for continuous-use temperature environments

These grades are commonly used in industrial equipment, electrical panels, and structural components where dimensional control is critical.

PC 30% GF: High-Performance Engineering Applications

Pc 30% gf grades are designed for applications requiring maximum rigidity and strength. Grades such as 3413R, 3413HF, and 3413R Black are selected for demanding load-bearing and high-temperature environments.

Where PC 30% GF is used

• Automotive under-the-hood components
• Heavy-duty electrical enclosures
• Industrial machinery parts
• Structural components exposed to heat and stress

Higher glass content delivers superior mechanical performance, though tooling design and processing expertise are essential.

Flame-Retardant Properties in PC Glass Filled Resin

Flame retardancy is a critical requirement in many regulated sectors. PC FR glass filled granules such as 3412ECR, 500R, 505RU, and thin-wall grades like BFL2015 and ML3019 help manufacturers achieve fire safety compliance without sacrificing strength.

Benefits of FR grades

• Compliance with fire safety standards
• Reduced flame spread and smoke generation
• Improved safety in electrical and electronic assemblies
• Suitability for public infrastructure applications

Processing Considerations for Glass Filled Polycarbonate

Processing glass-filled PC requires careful control to achieve optimal performance, particularly for high-GF grades like 3413HF (30% GF) or thin-wall flame-retardant materials such as 515RU and 505RU.

Key processing points

• Proper screw design to manage fiber dispersion
• Controlled melt temperature to avoid degradation
• Mold design optimized for fiber-filled materials
• Attention to tool wear due to glass reinforcement

Experienced processors can maximize the benefits of pc glass filled resin through optimized molding conditions.

Industries Driving Demand Across India

Demand for pc fr glass filled granules continues to grow across multiple sectors, particularly for UL94 V0-rated grades such as 500R, 3412R, 3413R, and 505R.

High-demand industries

• Automotive and electric vehicles
• Electrical and electronics manufacturing
• Industrial equipment and automation
• Lighting and infrastructure projects

Manufacturers across India rely on these materials for consistent quality, safety compliance, and long-term performance.

Conclusion

PC FR glass filled granules offer a reliable solution for applications requiring strength, thermal stability, and flame resistance. With options such as Pc 10% GF grades (500R, 505R, 505RU), Pc 20% gf grades (3412R, 3412ECR), and Pc 30% gf grades (3413R, 3413HF), manufacturers can select the right balance of performance and processability. As industrial demand grows across India, glass filled polycarbonate remains a key material for advanced engineering applications.