An update and some technical information and a cleaning recommendation for Silestone…
Because of the closed surface of Silestone, stains do not enter the tops by normal use. If you would like to put hot articles or heat-producing devices onto the tops, use a corresponding mat. Due to the non-porous surface Silestone has a high acid resistance. Oils, coffee, wine, refreshment, fruit and acetic acids do not harm the material. Smooth surface can be wiped easily, so there is no need to seal or wax the silestone surface. If you do, add a sealant or wax, the surface will lose its brilliance. Note, that a Silestone surface should not receive strong UV radiation
For daily use and maintenance please use a wet cloth and an uncommitted cleaner such as general purpose cleaner or dish cleaner. For intensive cleaning we recommend warm water. Stains can be removed with a common household cleaner and a soft sponge. Wipe off the stain and rinse with warm water. You can also use a liquid scouring agent or limescale remover. For removing tough stains use a scouring sponge. Acetone and paint thinner may be used for short-term spot removal. Be sure to wipe surfaces immediately with clean water. Hydraulic limestone stains can be removed with Salfuman, please leave on top for 1 minute and rinse with water.