iron nails to be used outdoors are coated with enamel to prevent the iron from rusting.
iron nails to be used outdoors are coated with enamel to prevent the iron from rusting.
iron nails to be used outdoors are coated with this to prevent the iron from rusting?
enamel
choosing the right finish for metal furniture is important because of its durability. some of the most common finishes include chrome plating, plastic, painted, brass and anodized finishes. chrome plating, although durable, is thin and if damaged where it is exposed to air, scratches can rust. plastic-coated finishes are synthetically made and good as they prevent rusting or the metal changing color from air exposure. although they're as strong as paint finishes, they do not hold up as well as electroplated finishes. paint finishes are for both steel and aluminum furniture, although it easily scratches and rusts. brass plating, which is an electroplated finish, is applied in a bath and is durable. solid brass is both pricey and rare. to decide if a finish is solid brass put a magnet on the furniture and if it clings, it is made of brass-plated steel (iron in the steel is magnetic). brass is made from copper and zinc, two metals that are prone to corrosion from exposure to (salty) water or air. brass finishes should be oiled or clear-coated with polyurethane or a similar material to make a barrier from air and water to prevent corrosion. corrosion is slowed when a surface is already oxidized, for example aluminum is very hard to weld because of its persistent aluminum oxide layer, this prevents access to the bare metal. anodized finishes are used on aluminum furniture to increase the thickness of the aluminum oxide layer, creating a thicker barrier between the atmosphere and aluminum base metal.
metal furniture
bullet::::- with iron nails with the pointed nail ends protruding on the inside of the boat, bent over and back into the wood in the form of a hook. this is a cheap and cheerful technique maybe called clinching in some parts but usually, in england at least, "turnin'-em-over". it is the sort of thing which used to be found in scandinavian-built boats but even with iron nails, on the lands, they were usually properly clenched over roves. nails fastening timbers were sometimes turned over, particularly where removable bottom boards were to rest on the timbers. however, it was possible to tread the bottom boards onto the clenched nails and where marks were left, gouge out recesses to accommodate the clenched nails.
clinker (boat building)