Cvinyl FT General-Purpose Foam is designed to meet the needs of multiple industries. The series covers a wide range of densities, including 60, 80, 100, 130, 200, 250, 300 kg/m³, and more, offering excellent overall performance and high cost-effectiveness.
Outstanding Strength/Stiffness-to-Weight Ratio: High specific strength and modulus improve strength and rigidity while significantly reducing weight.
High Closed-Cell Ratio: Featuring a high closed-cell ratio and low resin absorption. Its fine and uniform cell structure reduces resin uptake in sandwich composites, resulting in lower weight and cost savings, while also enhancing safety and extending service life. The material further provides excellent sound insulation, thermal insulation, heat preservation, and moisture resistance.
Easy Bonding: Compatible with various resin systems such as epoxy, unsaturated polyester, and vinyl ester resins, delivering high bonding strength.
Processing Convenience: Easy to machine, enhancing design flexibility.
Fatigue Resistance: Its unique molecular structure provides excellent fatigue resistance, making it particularly suitable for sandwich composite structures subjected to dynamic loads. When used with fiber-reinforced materials, the service life of the sandwich structure can be several times longer than that of metal components.
Item | Test Standard | Unit | Result | FT60 | FT80 | FT100 | FT130 | FT200 | FT250 | FT300 |
Apparent Density | ISO 845 | Kg/m³ | Average Value | 60 | 80 | 100 | 130 | 200 | 250 | 300 |
Compression Strength | ISO 844 | MPa | Average Value | 0.85 | 1.4 | 2.0 | 3.0 | 5.2 | 7.0 | 8.8 |
Minimum Value | 0.75 | 1.1 | 1.6 | 2.6 | 4.5 | 6.1 | 7.6 | |||
Compression Modulus | ISO 844 | MPa | Average Value | 72 | 95 | 140 | 190 | 285 | 450 | 530 |
Minimum Value | 60 | 80 | 115 | 160 | 255 | 330 | 450 | |||
Tensile Strength | ASTM C297 | MPa | Average Value | 1.8 | 2.5 | 3.3 | 4.4 | 7.0 | 9.0 | 11.0 |
Minimum Value | 1.3 | 2.0 | 2.7 | 3.4 | 6.2 | 7.5 | 9.1 | |||
Tensile Modulus | ASTM C297 | MPa | Average Value | 75 | 95 | 125 | 175 | 235 | 300 | 400 |
Minimum Value | 60 | 80 | 100 | 140 | 190 | 240 | 320 | |||
Shear Strength | ISO 1922 | MPa | Average Value | 0.75 | 1.08 | 1.6 | 2.1 | 3.5 | 4.5 | 5.2 |
Minimum Value | 0.65 | 0.95 | 1.4 | 1.9 | 3.2 | 3.6 | 4.6 | |||
Shear Modulus | ISO 1922 | MPa | Average Value | 22 | 27 | 35 | 54 | 72 | 98 | 120 |
Minimum Value | 18 | 24 | 28 | 40 | 60 | 80 | 100 |
Wind Turbine Blades
Cvinyl F Foam offers excellent heat resistance and mechanical performance, effectively preventing core material property changes caused by rapid exothermic reactions during blade manufacturing. With post-processing adjustments, the foam is fully compatible with blade production systems and is now widely used in the wind energy industry.

Marine and Yachts
Sandwich composite materials offer high strength, excellent corrosion resistance, and lightweight properties. They provide seamless, one-piece construction with strong design flexibility, resulting in smooth and precise hull shapes.

Transportation
Sandwich structures offer innovative solutions for lightweight design. PVC and PMI structural foams serve as ideal core materials, providing cost-effective solutions for the transportation industry.

Sports Equipment
Sandwich composites made from PVC or PMI structural foams combined with carbon fiber offer excellent fatigue resistance, high specific strength, and superior specific modulus. These properties extend the lifespan of sports equipment and maximize its performance.

Drones
Depending on the different manufacturing process requirements of military and civilian drones, Cvinyl PVC and PMI structural foams can provide customers with tailored process solutions, leveraging their respective unique and outstanding properties.

Longhua Group is a trusted industry leader with cutting-edge expertise in vibration damping, noise reduction, and lightweight technologies. Through our wholly-owned subsidiary, Luoyang Kebos New Material Technology Co., Ltd., we specialize in the research, development, and application of advanced materials such as resin-based composites, structural foams, and rubber and plastic materials. Kebos holds complete intellectual property rights in areas like product structure and formulation design, molding processes, simulation analysis, testing, and post-processing fine control. With 142 national patents, including 42 invention patents, and nearly 100 proprietary technologies, we provide strong protection for our core technologies. Our R&D team has pioneered innovations like dual-layer damping fasteners, ensuring the highest-quality railway damping pads, synthetic railway sleepers, and rail fixtures. We offer solutions that enhance the performance, safety, and sustainability of railway systems, backed by our comprehensive engineering capabilities. Looking for reliable railway rubber pad manufacturers? Choose Longhua Group for reliable, high-performance railway damping solutions tailored to your needs.