Specification Language and Test Methods
Translate design intent into numbers. For PVD, document substrate prep, brushing direction, target chemistry, and thickness expectations with color tolerances. For waterborne, define pretreatment, film build, gloss units, hardness, adhesion, and chemical resistance. Reference salt fog hours, abrasion cycles, and cleaning agents by name. Include handling, labeling, and revision control so vendors deliver traceable results. With concrete criteria, bids become apples‑to‑apples and field performance matches renderings with satisfying precision.