304 Grade Stainless Steel Frames Westminster ceramic table tops are made using a 3mm ceramic sheet fused with 5mm tempered glass which ensures maximum strength and durability. As is the case with any natural material, each ceramic table top surface is individual, beautiful, natural and distinctive. The ceramic surface is highly resistant to scratches, UV, high and low temperatures. The tables tops are also hygienic and very easy to clean, with almost zero water absorption making them frost and weather proof. Although dirt cannot penetrate the ceramic surface, we do recommended cleaning the surface in order to prevent the build-up of grease and contaminants with warm water and mild detergents.