The surface of the mats are coated with 3 layers of protective lacquer which is heat resistant to 100 c or 212 f.
Cork backedplace mats.
The finish is stain resistant and allows spills to be wiped clean with a damp cloth.
This is then heated to a very high temperature which when dries forms an extremely hard protective surface.
Cala hometm hardboard table mats are made with a layered construction.
The centre of the traditional pimpernel placemats is composed of.