Name: Rifeng FR - Premium Fine Cell Size Self-Extinguishing PMI Foam for High-Safety Composites
Brand: Hunan Rifeng Composite Co.,Ltd
Availability: InStock
Rating: 5 (1 reviews)

Rifeng FR - Premium Fine Cell Size Self-Extinguishing PMI Foam for High-Safety Composites

Rifeng FR is a high-performance, self-extinguishing PMI structural foam designed for industries with stringent fire safety requirements. Engineered for rail vehicles, watercraft, and aerospace interiors, it combines lightweight efficiency with exceptional flame retardancy. With its robust thermal stability and an ultra-fine Fine Cell Size structure for minimal resin uptake, Rifeng FR ensures maximum safety and structural integrity in challenging environments.

Description

Self-Extinguishing PMI Structural Foam
Rifeng FR is a high-performance, closed-cell rigid foam based on Polymethacrylimide (PMI) polymer, completely free of CFC's. It features a Fine Cell Size. Rifeng FR is Self-extinguishing and engineered specifically for high-safety applications in rail vehicles, watercraft, and the aerospace industry.

Processing and Production
Rifeng FR maintains excellent dimensional stability during high-temperature curing processes, withstanding temperatures up to 180°C and pressures up to 0.7 MPa (dependent upon density). It is highly compatible with advanced manufacturing methods, including autoclave, vacuum bag, RTM, VARTM, VARI, and HP-RTM.

Premium Weight Saving and Dielectric Control
Featuring a Fine Cell Size structure, Rifeng FR ensures the lowest resin uptake at the interface. This eliminates unnecessary dead weight and optimizes electromagnetic transparency, making it suitable for specialized radomes and antennas that also require flame retardancy.

Thermoforming and Precision Machining
Rifeng FR is highly adaptable for complex designs. It can be easily thermoformed or CNC machined to meet stringent tolerances. We provide high-precision, pre-shaped, and ready-to-use foam cores tailored for seamless integration into aerospace interiors and rail structures.

Mechanical Properties (Typical Values)

Property	Test Method	Unit	Rifeng 52FR	Rifeng 75FR	Rifeng 110FR
Density	ASTM D1622	Kg/m3	52±12	75±15	110±20
Compressive Strength	ASTM D1621	MPa	0.85	1.6	3.6
Compressive Modulus	ASTM D1621	MPa	45	85	145
Tensile Strength	ASTM D638	MPa	1.2	2.2	4.0
Tensile Modulus	ASTM D638	MPa	55	95	165
Elongation at Break	ASTM D638	%	3	3	3
Shear Strength	ASTM C273	MPa	0.8	1.3	2.3
Shear Modulus	ASTM C273	MPa	22	35	60
Heat distortion resistance	DIN 53424	℃	≧200	≧200	≧200

Sales range for Rifeng FR Grade

Rifeng FR Grade	Size (mm)	Thickness (mm)
52 FR	2500 x 1250	1~110
75 FR	2500 x 1250	1~100
110 FR	2500 x 1250	1~90

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

Ideal for High-Safety Aerospace Interiors
Rifeng FR excels in aerospace interiors and helicopter components where lightweight performance and certified self-extinguishing properties are mission-critical.

Industry-Leading Low Resin Uptake
Our FR series features Fine Cell Size technology that minimizes resin penetration, ensuring maximum weight efficiency for advanced rail and marine structures.

Uncompromising Thermal and Mechanical Stability
With an exceptional strength-to-weight ratio, Rifeng FR maintains its structural properties even under extreme mechanical stress and temperatures up to 180°C.

Product Advantages

Self-Extinguishing Safety: Certified flame retardancy for rail, marine, and aviation interiors.
Minimal Resin Absorption: Fine Cell Size structure significantly reduces dead weight in final parts.
Precise Customization: Available in custom densities and shapes for complex engineering needs.