Sodium Transparent Filler Master Batch Compounds Is Based On Sodium Sulfate Na2So4 Produce For All Ldpe Films, Pe Application, PP Sheet/Boards And Injection Mouding Products. It Is Also Known As Sodium Filler. It Can Greatly Reduce The Product Cost And Has Little Effect On the Transparency And Other Performance Of The Final Products. It can be added 5%-40% in prime polymer according to the application.