Foots oil or residue wax is remained product of slack wax after pressing and de-coloring.

Foots oil is considered as a paraffinic wax with lower aromatic element, well kind of stability and high viscosity.

Residue wax is in solid form at room temperature and melts above 45 – 55 °C. residue wax flashpoint is about 240 °C and  boiling point above 270 °C.