FSI is introducing Genstar™ HD6, a high-density polyurethane rail foam engineered to deliver superior safety, durability, and versatility for door applications.
Designed to help manufacturers transition from outdated methods, Genstar™ HD6 exceeds industry requirements while supporting efficient production and long-term performance.
Fire Protection Beyond the Standard
Most door assemblies must meet an ICC Class B fire rating. Genstar™ HD6 achieves a Class 1 rating under ASTM E84, providing higher fire resistance than the standard requires. This ensures compliance with evolving regulations while offering manufacturers additional confidence in product safety.
A Reliable Alternative to Wood
Wood has traditionally been used as a rail material, but it presents challenges that can compromise product performance. Wood is vulnerable to rot, warping, termite damage, and weathering, all of which can shorten product life.
Genstar™ HD6 eliminates these concerns with a stable, high-density foam that maintains performance over time.
Performance Advantages
- Density range of 8 to 12 pcf, providing versatility across multiple applications in a single system
- Efficient demold and reactivity times, supporting consistent production output
- Durability and long lifespan, reducing the risk of failure in service
- Verified fire resistance, demonstrated through ASTM E84 testing
Sustainable Formulation
Genstar™ HD6 is a water-blown foam system that contains no HFOs or PFAS. It allows manufacturers to achieve regulatory compliance and high performance without the use of environmentally concerning blowing agents.
Flexible Integration
Genstar™ HD6 is designed for use across FSI’s equipment platforms, including SLUG Pro, high-pressure, and low-pressure machines. This flexibility allows manufacturers to adopt the system with minimal changes to their production processes.
Current and Emerging Applications
The system is already being used in refrigeration doors, where safety, insulation, and durability are critical. Its performance characteristics also make it suitable for a wider range of markets, including:
- Commercial and residential entry doors, where compliance and long-term reliability are required
- Industrial doors and gates, which demand strength and fire safety in challenging environments
- Cold storage and specialty enclosures, where insulation must pair with durability and safety
A Long-Term Solution
As ICC requirements continue to tighten, manufacturers relying on wood and other traditional materials will need to update their methods.
Genstar™ HD6 provides a future-ready solution that exceeds testing standards, supports regulatory compliance, and delivers consistent long-term performance.
