Argentium is Firescale Free скачать в хорошем качестве

Argentium is Firescale Free

"When sterling silver is heated, a dark, penetrating oxide forms called firescale, which is difficult to remove. When Argentium is heated, germanium migrates to the surface, creating a germanium oxide layer. If you watch carefully, you can actually see the layer forming. It goes from shiny to a frosty white. This layer forms before the copper can oxidize, leaving the Argentium firescale free. I have cleaned both surfaces and placed them on a charcoal block to demonstrate the fire scale free properties of Argentium compared to sterling. You can see the fire scale forming on the sterling and not the Argentium. A way to tell if your metal is sterling or Argentium is to simply heat it. If it is sterling it will turn black and the Argentium won't." Follow renowned jewelry instructor Ronda Coryell as you learn a variety of basic techniques in Argentium Silver - The Finest Silver. In addition to learning how to make seven different rings in this tarnish- & firescale-resistant material - you'll learn many valuable tips and tricks that you will find useful as you work with this amazing new silver alloy. Topics Covered in the DVD: • Basic Properties of Argentium Silver • Fusing & Soldering • Texturing & Hallmarking • Hardening Properties • Proper Finishing Techniques • Surface Passivation • Adding a Patina The full DVD Techniques in Argentium - Volume 1 Basics is available for purchase now from www.rondacoryell.com! Produced and written by Ronda Coryell (http://www.rondacoryell.com) Directed, filmed and designed by Wes Clarke (http://www.wesclarke.com) Copyright ©2011 Ronda Coryell Designs. Rights Reserved. The Argentium Flying Unicorn and logo mark are trademarked by Argentium International Limited. Ronda Coryell presents: Techniques in Argentium - Volume 1 Basics / 68 mins / Color / Stereo / Mastered in HD