#filler  used for filling cracks or holes in a surface
  supertype:  sealing_material__sealingmaterial  any substance used to seal joints or fill cracks in a porous surface
  subtype:  putty  a dough-like mixture of whiting and boiled linseed oil; used especially to patch woodwork or secure panes of glass
  subtype:  mastic  a pasty cement used as an adhesive or filler
  subtype:  sizing__size  any glutinous material used to fill pores in surfaces or to stiffen fabrics; "size gives body to a fabric"
  subtype:  stiffener  material used for stiffening something

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