No contractor, or agent of a contractor, shall pay out, use or appropriate any moneys or funds described in § 3502 of this title until they have first been applied to the payment of the full amount of all moneys due and owing by the contractor to all persons (including surveyors and engineers) furnishing labor or material (including fuel) for the erection, construction, completion, alteration or repair of, or for additions to, such building, whether or not the labor or material entered into or became a component part of any such building or addition and whether or not the same were furnished on the credit of such building or addition or on the credit of such contractor.