Rustins aluminium paint is an alkyd based oil paint which can be applied over existing paints and is ideal for use on wood and metal particularly good for protecting exterior steelwork made with leafing grade aluminium for extra water resistance heat resistant up to 105 cone coat is usually sufficient a second coat may be applied if required touch dry in approximately 4 hours depending on temperature and humidity and a second coat may be applied after 12 16 hours if required 13 sqmetreslitre pe