A good workbench should last a lifetime, so it’s worth the effort to keep it clean. Here’s how I protect mine during finishing and glue-ups. Years ago, I bought a roll of pink rosin underlayment paper from a home center. You’ll find it in the flooring section. It’s quite water-resistant and provides a good barrier to glue, paint, stain and varnish. I lay two short pieces side by side and tape them down to the bench. If the paper is still in good shape when I’m through, I save it for the next messy job. A roll of rosin paper is cheap, and it seems to last forever.