... high quality 2.best service 3.good price Nucleating Agent (NP-508)Chemical Name:Sodium2,2'-Methylene bis(4 ... 0.5%Characteristics: Highly effective nucleating agent for polyolefin, capable of raising matrix resin's crystallization temperature, heat distortion temperature, tensile strength, ... 0.20%.Applications: NP-508 is a suitable nucleating agent for PP, PE, PET and polyamides.Package and Storage ...