To clean simple imperfections in pewter, gently wash the metal with a mild detergent, warm water and a cloth. To thoroughly clean and polish pewter, use a homemade salt, vinegar and flour paste for cleansing and a rotten stone and linseed oil paste for polishing.Know More
Wet a soft cloth, and apply a few drops of mild detergent onto it. Hold the pewter under a stream of warm water, and gently wash it with the cloth. Rinse it thoroughly, and allow the metal to dry completely before polishing.
Mix one teaspoon of salt and 1/2 cup of flour with one cup of vinegar until the mixture forms a paste. Use a soft cloth to gently apply the paste to the metal until the entire surface is covered. Allow the paste to sit for a minimum of 20 minutes before rinsing the pewter thoroughly. Dry the metal by hand with a towel.
Boil a small amount of the linseed oil, then allow it to cool until it is warm. Mix the rotten stone with the linseed oil until it forms a paste. Use a soft cloth to apply the paste. Rinse thoroughly, and dry by hand with a towel.
When metal is heated, the atoms begin to vibrate. This increased motion causes the atoms to move farther apart. When the atoms move farther apart, the metal expands. This tendency for metals to expand when heated is called thermal expansion.Full Answer >
Copper is a highly conductive, ductile metal. The metal is soft and malleable, although it does possess a great deal of tensile strength. This means that copper is easily formed by hand, but it is not suitable for building structures.Full Answer >
Metal is usually engraved through a process involving a diamond drag engraving tool that pushes slivers of metal to each side of the tool so a simple message may be added to a piece of jewelry. Amateurs often mistake a particularly neat engraving for some form of printing process as the words are so clear, but no inks or dyes are used.Full Answer >
One of the easiest ways to tell if an object is gold or brass is to look at the size. Most large objects are not made of gold.Full Answer >