best way to preserve a picnic table
1. Cover your table with a heavy-duty, tight-fitting table cover when not in use. With wood tables, this will help to prevent the sealant from breaking down prematurely due to inclement weather or sun exposure. It will also help to keep plastic and metal tables clean and their finishes chip-free.ove the picnic table to a covered area where you have access to a hose. A carport, garage or workshop is ideal. If this type of space is not available to you, plan to seal your table when the weather report is calling for little to no chance of rain for at least three days.