What coatings are best to use on carbon-steel fasteners?
A popular coating system often used on carbon-steel fasteners is an organic barrier style applied over a metallic sacrificial plating. There are many types and brands of barrier coatings available and most will provide six times more corrosion resistance than standard zinc-plated fasteners. Barrier coatings widely are specific for use in construction, industrial and automotive applications. They protect the base metal from corrosion as long as the coating is not chipped, peeled or cracked. Because of this condition, a sacrificial base coat often is used under the barrier-style topcoat. Can standard zinc-plated fasteners be used in ACQ-treated lumber? Standard zinc-plated fasteners will corrode quickly and should not be used in ACQ-treated lumber. It is important to remember that carbon-steel fasteners used in ACQ-treated lumber must provide corrosion resistance equal to hot-dipped galvanized per ASTM A153. What fasteners are approved for use in ACQ-treated lumber? The Southern Pine Cou
