Instapak Quick® RT Heavy-Duty Foam Bags measure 18 x 20 inches and deliver on-demand foam cushioning without preheating units or specialized equipment. Each bag activates through a simple kneading process, expanding to conform around the product and form a custom foam cushion inside the shipping container. The RT formulation is designed for ambient temperatures between 65°F and 90°F.

The heavy-duty rating makes these bags well-suited for shipments in the 40 to 80 lb range — applications where standard foam bags may fall short. Typical environments include high-volume e-commerce fulfillment, industrial parts distribution, electronics shipping, and any pack station where protective void fill must scale without capital equipment investment. The self-contained activation means bags can be deployed portably at any station in the facility.

Because both chemical components activate entirely within the sealed bag, there is no residue, cleanup, or waste handling. This listing covers a bulk case of 120 bags weighing approximately 57.78 lbs per case, and ships via parcel carrier.