Two students are doing a project trying to find out which bathroom cleaner works the best on tiles. They put mustard and toothpaste on tiles and left for 3 hours. They then tried to remove the grime with Vim, Tilex, Mr. Clean and Fastastic. They used a sponge. They are trying to apply a scientific theory to explain why Vim worked the best. Any info. would greatly be appreciated. They also are having difficulty finding the ingredients of each product.