Timbermate Woodfiller is an interior grade wood putty, grain filler, edge filler and crack filler. It is designed to fill in cracks, chips, grain and knots of teak, oak and other hardwood timbers. Timbermate does not shrink, sink, crack or fall out and has an indefinite shelf life. The secret ingredient of Timbermate is tap water and has no Acrylic, Latex or Solvents. It is non-flammable, freeze-thaw stable and can be used to the last gram. It dries with a matte finish which allows the natural beauty of your timber to show through.