Rifeng CR - Self-Extinguishing PMI Foam Core for Rail, Marine, and Aerospace Safety

Self-Extinguishing PMI Structural Foam
Rifeng CR is a closed-cell rigid foam based on Polymethacrylimide (PMI) polymer, that is completely free of CFC’s. It features a Coarse Cell Size. Rifeng CR is Self-extinguishing and particularly suitable for applications in rail vehicles and watercraft, as well as high-safety interior structures in the aerospace industry.

Processing and Production
Rifeng CR can withstand high-temperature curing processes with a maximum temperature of 180°C and maximum pressure of 0.7 MPa (dependent upon density). It’s optimized for advanced curing methods such as autoclave, vacuum bag, RTM, VARTM, VARI, and HP-RTM, ensuring versatility in composite manufacturing.

Weight Saving and Adhesion
When building composite sandwich components, the Coarse Cell Size structure of Rifeng CR ensures excellent mechanical interlocking with resins. This guarantees that the resin stays at the interface, eliminating excess weight while providing superior peel strength for heavy-duty structural parts.

Thermoforming and Shaping
Rifeng CR can be easily thermoformed or CNC machined to meet stringent tolerances. High precision, pre-shaped and ready-to-use foam cores in simple or complex geometries can also be supplied by us for seamless integration into your designs.

Mechanical Properties (Typical Values)

Sales range for Rifeng CR

• Thickness tolerance ± 0.2 mm, length / width tolerance ± 2 mm.

Certified Safety for Rail and Marine Interiors
Rifeng CR PMI Foam is the ideal core material for rail vehicle interiors and ship building, providing essential self-extinguishing properties and high mechanical stiffness.

Enhanced Structural Integrity with Coarse Cell Adhesion
The Coarse Cell Size structure of the CR series ensures superior bonding with laminating resins, making it perfect for high-load structural components in aerospace and marine applications.

Thermal Stability up to 180°C
Rifeng CR maintains exceptional performance under extreme temperatures, allowing it to withstand rigorous co-curing cycles without compromising structural stability.

Product Advantages

• Self-Extinguishing Properties: Crucial for high-safety standards in rail, marine, and aviation.
• Superior Peel Strength: Coarse Cell Size interlock maximizes the bond between the skin and core.
• Versatile Curing Compatibility: Performs reliably in autoclave, RTM, and VARI processes.