Whitewash Whitewash Whitewash, or calcimine, kalsomine, calsomine, or lime paint is a type of paint made from slaked lime (calcium hydroxide, Ca(OH)) and chalk calcium carbonate, (CaCO), sometimes known as "whiting". Various other additives are sometimes used. Whitewash cures through a reaction with carbon dioxide in the atmosphere to form calcium carbonate in the form of calcite, a reaction known as carbonation. It is usually applied to exteriors; however, it has been traditionally used in interiors of food preparation areas, particularly rural dairies, because of its mildly antibacterial properties. Whitewash can be tinted for decorative use and is sometimes painted inside
Primer (paint) to new metal, it is much better than weak, porous rust. Painting and gluing aluminium is especially important in the aircraft industry, which uses toxic zinc chromate primers and chromating to add the necessary adhesion properties. Using a primer on surfaces made of plastic is only necessary when making a drastic change of colour (going from dark brown to white, for example), because most household plastics are not very porous and are not easily damaged by moisture; or when a long-lasting coat of paint is desired. A primer will reduce the number of layers of paint necessary to completely cover