Altofina is a fairly standard laminate and we often manufacture tables from it for commercial use. I would follow the general laminate cleaning recommendations of a damp cloth with made detergent. This is formica's cleaning guide Formica® Laminate Cleaning Guide
I've got a cream Altofina in my van. Shows up every mark. However a Flash magic erasure sponge works an absolute treat on the surface. Inexpensive too. Get them at supermarkets, B&M or Amazon.
