Sanding, applying primer and painting are the key steps in refinishing a metal table. To make your metal table look new again, prepare a grinder tool, sandpaper, auto primer, auto-glazing compound, liquid metal filler, paint remover, paint and clear-coat finishing spray.
Remove the table's paint
Remove existing paint using a paint remover, making sure to follow the manufacturer's instructions.
Smooth out rough areas with a grinder tool
Wear heavy work gloves and safety glasses when using a grinder tool to smooth out rough parts and rust in the metal. Continue smoothing out these tough areas without stopping to avoid eating away at the metal or creating a weak spot.
Sand off paint
Polish any remaining rough edges using 60-grit sandpaper. Be sure to sand below rusty spots too.
Fill in holes, and apply glaze
Add a liquid metal filler to holes or indentations caused by rust. Fill in tiny marks and imperfections by applying a very thin layer of glazing compound. Leave the table to dry for several hours.
Smooth out edges, and apply auto primer
Use a 60-grit or 120-grit sandpaper to polish rough edges of raised areas caused by the application of liquid metal and glazing compound. Next, apply two to three coats of primer on your metal table, allowing each coat to dry before applying the next one.
Create a smooth finish, and apply paint
Check your metal table, and do any additional necessary repairs. Lightly sand the entire piece for the last time using 320-grit sandpaper. Apply paint and top coat afterward.