LUMIFLON based coating system is by far the most cost effective when coating life is taken into account.
LUMIFLON based coating system is only 1/3 that of the alkyd, and only 2/3 the cost of the urethane assuming a topcoat life of 30 years. If the fluorourethane topcoat life is assumed to be 60 years.
Learn more about the comparative life cycle costs for an alkyd, polyurethane, and a fluorinated urethane.