@IWillNeverGrowUp:
Get a sheet of Plexiglass to place over top (double benefit is it protects the surface from damage
Yes, that’s an especially good point for game owners who allow potato chips, soft drinks and beer to come anywhere near their map table. :)
In case this information is useful, here are the technical details of the acrylic sheet I used. It’s a material called non-glare Acrylite P-99, originally sized by the manufacturer at 48" x 96" x 1/16" thickness. The local plastics company from which I bought it cut the sheet to the size I wanted, which is 36" x 96", so they just had to cut a slice from the width because the length was already correct. (Note that this is bigger than is needed for the A&A Global 1940 map, but my wargaming table is larger than the A&A game requires). They then shipped it to me by delivery truck, rolled up into a tube about two feet in diameter as I recall (the rolling made possible by the fact that the plastic was just 1/16" thick). The costs (in Canadian dollars) were $60 for the plastic itself, plus $10 for the cutting, plus $30 for delivery, plus another $15 or so for sales tax.