Touch fasteners for use as mold inserts in molding seat foam buns include a sheet-form base a magnetically attractable material disposed on the upper face of the sheet-form base, and a film cover covering the magnetically attractable material wherein maximum slope angle of the film cover, is less than about 75° as measured from the upper surface of the sheet form base to the outside surface of the cover. The magnetically attractable material is a strand of frangible composite constructed to be readily segmented with the seat foam bun during recycling.