... soap and water or an over-the-counter cleaner like Windex®. Difficult spots are removed ... soaking the area with an over-the-counter cleaner for up to 10 minutes and ... surface remains intact as it is cleaned. 2).Multiple Applications Quartz surface can be fabricated ... wall, shower, table etc. 2).Commercial application: Reception counter, pole, windowsill, brand, work counter for the fast food, table for ...