~Hunan Rifeng Composite Co.,Ltd specializes in R&D, production, and marketing special high-performance structural foam core materials. The main product is polymethylacrylimide (PMI) foam which have obtained national invention patents. Our product performance has reached the international advanced level (same as or above than ROHACELL).ï¿½
Now, we have more than 10 specifications of Rifengï¿½ PMI foam products. PMI foam has high specific strength, high specific modulus, high thermostable, and closed-cell property. Under the same density conditions, the strength, modulus, and tensile strength of PMI foam are much higher than other foams. So the PMI foams are the first choice for composite sandwich core materials.