I 've always used Bostik GlideCote / table and tool surface sealant. Lasts longer than paste wax and will not stain wood surfaces. After each use of scrollsaw I spray the table lightly, wipe with soft cloth, and wipe second time with cheesecloth. I've had my scrollsaw for 18 years and very few scratches. This sealant also protects against moisture and rust. Excellent on all metal table tops and tools.