Abstract: The present invention provides an indicator for determining when curable coatings have crosslinked or cured thereby permitting the applier to know what part of the floor may be used without affecting the surface and what part of the floor is still in the curing process and may not be disturbed. The invention involves the incorporation in the liquid materials applied to the floor, of a dye or pigment which is visible to the naked eye when the coating is in the liquid state and significantly less visible after the coating has cured. Almost any dye or pigment may be used which is compatible with the various coatings which may be employed in the present invention; provided however, the amount of dye or pigment added is sufficient to be visible when the material is liquid but not so much to prevent the color intensity from being greatly diminished upon curing.

Abstract: A vapor phase corrosion inhibitor formulation comprising a finely divided anhydrous molybdate selected from the group consisting of anhydrous sodium molybdate, anhydrous ammonium dimolybdate, and anhydrous amine molybdates having the structural formula: ##STR1## wherein R.sub.1 is an aliphatic hydrocarbon having up to 7 carbon atoms, and wherein R.sub.2 is either hydrogen or an aliphatic hydrocarbon having up to 7 carbon atoms with these anhydrous molybdates being provided in admixtures with sodium nitrite and benzotriazole. The formulations of the present invention have been found to be particularly desirable as a vapor phase corrosion inhibitor when in contact with the environs of metals susceptible to corrosion including, for example, iron, steel, copper, and alloys such as alloys of iron, copper, and the like. In a preferred embodiment, the amine-molybdate compounds are those amine-molybdates derived from dicyclohexylamine, 2-ethylhexylamine, and cyclohexylamine.