SculpWood Putty is one of four components making up the EndRot system. It's a non-shrinking, two-part epoxy putty compound ideal for filling voids often associated with rot repair applications. When cured, it sands like wood and machines easily. It has tenacious adhesion to wood substrates when paired with System Three RotFix epoxy. SculpWood Putty is compatible with most water/solvent-based primers and paints.