Curious about the controlled foaming that Expancel delivers as a blowing agent? Get a sample of our unexpanded microspheres and see for yourself. Or, if you’re looking to add volume while simultaneously reducing the density of a product – try Expancel as a lightweight filler. Expancel products are available in several forms for a myriad of application uses. It comes expanded or unexpanded. Dry or wet. In Slurry form, as Masterbatch or as a specialized food packaging product - FG. To request a sample of either of these, just fill in the form below.