Original insulation trade vintage catalog for THE SISALKRAFT COMPANY. Main office and factory was located at 205 West Wacker Drive, Chicago, IL. Offices were located in New York City, NY and San Francisco, CA. The Whole Truth About Three Sisalkraft Products. Sisalkraft Reinforced Building Paper, Sisalation Reinforced Reflective Insulation and Copper Armored Sisalkraft. Sisalkraft consists of two heavy sheets of tough, specially treated kraft paper, bonded together with two layers of asphalt in which are embedded thousands of cross-laid sisal fibers of steel-like strength. Unbound from a large 1948 architectural catalog, this unique old four page technical brochure would exhibit beautifully matted and framed. A fantastic addition to your retro insulation collection. Pages are detached and may contain a small amount of residual glue on edge.