Cost-Effective Flame-Retardant 3D Printing for Rail Applications

Manufacturers exploring additive manufacturing for rail applications face a constant balancing act: meeting strict fire safety standards like EN 45545-2 while controlling cost and maintaining mechanical performance. Traditional materials often force trade-offs, either falling short on strength and certification, or exceeding budget requirements.
With the introduction of FDM® PA6/66-GF30-FR, Stratasys delivers a cost-effective, flame-retardant 3D printing material for rail and transportation applications. Designed for production environments, it enables manufacturers to produce certified, end-use parts without compromising performance, compliance, or cost efficiency.

A New Standard in Flame-Retardant 3D Printing Materials for Rail

FDM® PA6/66-GF30-FR is a 30% by weight glass-fiber-reinforced, flame-retardant nylon composite engineered for production applications on Fortus® systems. It is specifically designed for manufacturers who require certified performance, mechanical strength, and cost efficiency.  The material meets EN 45545-2 HL2 (R22/R23) compliance, enabling use in a wide range of rail interior and exterior applications.

By combining flame resistance with strong structural performance, this material opens new opportunities for additive manufacturing in regulated environments.

Bridging Performance and Cost in Rail Additive Manufacturing

One of the biggest challenges in additive manufacturing for rail applications is the gap between affordability and performance.

• • Lower-cost materials may lack the strength or certifications required
  • High-performance materials may exceed application needs and budgets

FDM PA6/66-GF30-FR is designed to sit squarely between these extremes, delivering:

• • Strong mechanical performance
  • Lower cost than high-end flame-retardant materials
  • Reliable, repeatable production on industrial Fortus systems – Fortus 450mc and F900.

This balance makes it an ideal choice for cost-sensitive, production-ready applications.

3D Printing for Rail Production and Spare Parts Applications

Rail and transportation manufacturers increasingly rely on additive manufacturing to address key operational challenges:

• • Long lead times for spare parts
  • High costs for low-volume production
  • Inventory constraints for critical components

With FDM PA6/66-GF30-FR, these challenges can be addressed by producing certified, end-use parts on demand, reducing lead times from weeks to hours in some cases.

Typical applications include:

• • Rail interior panels, covers, and housings
  • Electrical enclosures and junction boxes
  • Structural brackets and mounts
  • HVAC ducting, vents, and airflow components

Optimized for Fortus Systems in Rail Additive Manufacturing

FDM PA6/66-GF30-FR is optimized for use on Fortus® 450mc and F900 systems, enabling consistent, high-quality results with industrial-grade repeatability.

Key benefits include:

• • Excellent stiffness and dimensional stability from glass fiber reinforcement
  • High-quality surface finish with reduced visible layer lines
  • Reliable print performance across production builds

These capabilities make it well-suited for both functional prototypes and certified end-use production parts.

Accelerating Adoption of Additive Manufacturing in Rail and Transportation

The rail industry is rapidly expanding its adoption of additive manufacturing, driven by the need for faster, more flexible production.  Stratasys is uniquely positioned to support this shift by combining industrial hardware, and proven workflows.

With FDM PA6/66-GF30-FR, manufacturers can confidently:

• • Meet regulatory requirements
  • Reduce production costs
  • Scale additive manufacturing across more applications

A Smarter Path to Certified, Cost-Effective Rail Production

FDM PA6/66-GF30-FR represents the next step in making additive manufacturing practical for regulated, production environments.

By delivering flame certification, structural performance, and cost efficiency in a single material, it empowers manufacturers to expand their use of additive, without compromise.