Timbermate Water-based Woodfiller is 4 in 1 interior grade Crackfiller, Edgefiller, Grainfiller and Woodputty. It can also be used as a sanding sealer when thinned slightly with water. Timbermate Woodfiller is non-flammable and non-toxic and will not sink, crack, shrink or fallout. Excellent products for luthiers who uses it as wood filler. Timbermate Woodfiller will accept nails, screws, sawing, drilling and routing. It mixes perfectly with oil or latex tints, dyes, and stains, so that custom colors can be accurately reproduced. Timbermate is a water based product, and therefore does not contain any Acrylic, Latex or Solvents. Available in 13 premixed colours plus Natural Tint Base, Timbermate Woodfiller takes all types of known stains, varnishes and coatings. Timbermate Woodfiller will remain stable under freeze/thaw cycle, and has an unlimited shelf life: You can easily reconstitute the product if dry.