Foam-In-Bag (or Foam-In-Place) void fill is best used for uniquely shaped, heavy, fragile, and/or expensive products. This specialized machine is loaded with plastic sheets on rolls and two-types of polyurethane foam. The user selects the length of the plastic bag required and percentage of fill to be added to the bag. The machine then ejects the selected length of plastic and fills it with the two types of foam as a liquid. When the two foams combine, they create a chemical reaction causing the foam to grow and harden in approximately 30 seconds. The user must insert the product quickly allowing the foam to mold precisely around the protected product.
Because the foam expands up to 280X its liquid volume, you don’t have to worry about storing bulky materials or frequent resupply to the line, ultimately reducing costs for storage and handling. This very tight-fitting, custom fill is a great option for electronic, medical, and industrial products as wells as housewares. While this is the costliest option, it also provides maximum protection and shock absorption for valuable items.