People have been using lead for hundreds of years, and many are in the form of construction leads. Lead, included in the family of heavy metals, is soft and malleable. When left by itself, exposed in humidity, it turns dull gray in color because an oxide film forms around it, protecting the metal from further corrosion, thus making lead an ideal choice to use in many applications, especially in construction. Lead was once been used in painting as well. Paints that use lead rely on its color enhancing capabilities. Lead compounds are added to paint to give its tint, and in addition, makes it highly opaque. Aside from making the colors more vibrant, this technique gives manufacturers and construction contractors an economical edge as they can use little amounts to cover bigger areas. Since lead has a low melting point, it is ideal for roofing and electrical conduits as well, mostly for repairing and maintenance in the form of soldering.
No comments:
Post a Comment