Spread a large plastic tarp on the floor of a garage or covered outdoor area. If working in a garage, leave the door open for ventilation.
Set the table onto the tarp.
Wash the table thoroughly with soapy water to clean off any dirt or other surface debris. Allow it to dry.
Sand the table's surface with 250-grit sandpaper to prepare it for lacquer.
Wipe the sanded surface with a tack cloth to remove the sanding dust.
Add sprayable lacquer into the paint reservoir of a spray gun. If you have lacquer that is already packaged in an aerosol can, you can skip this step.
Spray a coat of lacquer onto the table surface, working in long stripes following the length of table. Overlap each pass slightly onto the one before it to ensure full coverage.
Allow the lacquer to dry for the amount of time printed on the lacquer container.
Sand the surface of the table with 250-grit sandpaper, then wipe it with a tack cloth to remove the dust.
Apply three more coats of lacquer, drying and sanding each before adding the next.
Allow the final coat of lacquer to dry completely. Do not sand it as this is the surface coat.