1 In Data Tools, click Data Validation, and then click Data Validation. 2  In the Input message tab, check Show input message when cell is selected. 3  In Title, enter a title for the pop-up window. 4  In Input Message, enter the text you want to appear in the pop-up window.
Melamine resin contains melamine in a manner similar to table salt containing chlorine. While melamine is dangerous to ingest, melamine resin is not. Melamine is the chemical that has been contaminating pet-food lately. Melamine resin is the thermoplastic from which plastic-ware, counter-tops, etc are made.
Magic Erasers, Easy Erasing Pads and similar products all have the same key ingredient: melamine foam. Melamine foam erasers are formed differently from other cleaning products and only need water to effectively clean most stains -- no chemical cleaners or soaps required. The only downfall is that melamine foam erasers wear out quickly -- just like pencil erasers do. To all outward appearances, however, melamine foam erasers look and feel just like any other sponge. To view the crucial properties of melamine foam, you need to go down to the microscopic level.