His customer has crema marfil floor and shower in her bathroom. The cleaning people damaged it severely by using the wrong products. The customer is insisting on Phil using a topical product on the restored marble to protect it from etching. Phil and I both felt that as long as the customer does not allow the cleaning company to use any products other than what is specified there is virtually no risk of additional etching. However, the customer is insistent. Phil is leaning toward standing firm with the customer that no topical product is necessary, but before he does he was looking for input from the group.