Porcelain is the ideal surface for dry erase boards and the institutional dry erase boards (think "schools") are all made from steel that has a porcelain surface fired on it.
But you can easily make your own using 12" x 24" or 24" x 24" glossy porcelain tiles. White works best, but I've used "marble" designs with very pale markings.
These tile wipe perfectly clean. I even am able to use "permanent" Sharpie markers on the tiles. the permanent marking does require spraying with alcohol to clean the surface, but it will come perfectly clean.
So, if you need a dry erase board, glue a tile to a backer board and apply a picture frame molding to the perimeter.
It probably should be mounted using a french cleat or a similarly robust mounting system. Picture frame wire will probably allow it to move around too much.
But you can easily make your own using 12" x 24" or 24" x 24" glossy porcelain tiles. White works best, but I've used "marble" designs with very pale markings.
These tile wipe perfectly clean. I even am able to use "permanent" Sharpie markers on the tiles. the permanent marking does require spraying with alcohol to clean the surface, but it will come perfectly clean.
So, if you need a dry erase board, glue a tile to a backer board and apply a picture frame molding to the perimeter.
It probably should be mounted using a french cleat or a similarly robust mounting system. Picture frame wire will probably allow it to move around too much.