1. Remove peeling or weakly attached layers of varnish using a scraper.
2. Clean dust and dirt from the surfaces, using a dust brush. Remove resin from knot locations using a putty knife.
3. Clean surfaces with a cleaning agent, according to the instructions on the label. Carefully rinse the surfaces and let them dry.
4. Polish the old, strong layer of paint until it becomes matted, and then remove polishing dust with a brush and cloth.
5. Treat the cleaned knot locations with knot varnish.
6. Prime the surfaces that have been cleaned to wood level or surfaces that were previously treated with catalyzed varnish or catalyzed paint, using a primer diluted with 5% solvent.
7. Putty the uneven areas.
8. Polish the treated locations with sandpaper and remove the polishing dust with a brush and cloth.
9. Prime the treated areas with primer.
10. Paint the surface at least twice with paint.
11. Clean the tools according to instructions on the label.