1. Clean dirt, fat and oil with a cleaning agent, according to the instructions on the label. Properly rinse the surfaces. Smaller areas can be cleaned using a solvent. Dry the surfaces with a clean cloth.
2. Remove rust using a steel brush or sandpaper, and polish aluminium surfaces until they become matt. Remove dust with a brush.
3. Prime metal surfaces with a suitable anti-corrosion primer.
4. Paint the surfaces twice with a paint finish.
5. Clean the tools according to instructions on the label, using water or solvent.