1. Clean the surfaces with a brush.
2. Remove resin from knot locations.
3. Cover the surfaces that you do not wish to stain.
4. Clean dusty and mouldy surfaces with a cleaning agent solution, according to the instructions on the label.
5. Carefully rinse the surfaces with water and let them dry.
6. Remove the old and peeling staining layer with a scraper and remove dust with a brush.
7. Exchange wood parts that have deteriorated.
8. Polish the old, strong layer of staining until it becomes matted, and then remove polishing dust with a brush.
9. Prime the surfaces that have been cleaned up to pure wood with a wood impregnating agent.
10. Depending on the state of the surface, treat the surfaces once of twice with a wood protective agent.
11. Clean the tools according to instructions on the label, using water or solvent.