An improved heat collapsible foam coating is provided for fiberglass insulation articles which is coated onto the fiberglass insulation, thereby providing the fiberglass insulation with good mechanical properties and other desirable properties such as low emission of volatiles, fire retardency, low potential smoke generation and low air friction.

An improved coating is provided for fiberglass insulation articles which is coated onto the fiberglass insulation, thereby providing the fiberglass insulation with good mechanical properties and other desirable properties such as low emission of volatiles, fire retardency, low potential smoke generation and low air friction.

The present invention relates to the packaging of a hot melt adhesive in a plastic film to prevent the adhesive from blocking during shipping and storage. The hot melt adhesives of the present invention may be thermoplastic or thermosetting in nature. The films used to wrap the adhesive are flexible in nature and are made of polymer composition, which become part of the adhesive once the adhesive is melted.