How to Waterproof a Dining Table

• 1). Examine your dining room table for any deformities or scratches that you want to repair. If your table already has a polyurethane finish on with no damage, you will not need to sand it and can go automatically to Step 5.
  
  
• 2). Sand the existing finish off and sand out any blemishes and scratches that exist.
  
  
• 3). Wipe down the table with a dry clean cloth to remove any dust from the surface.
  
  
• 4). Paint the polyurethane finish/paint on the table. Apply two to three coats and allow this to dry. Look at the table from different angles and with bright lighting to make sure you are covering the table evenly. Allow this to dry for several hours.
  
  
• 5). Paint the waterproof sealer on the table. Allow this to dry overnight.