Acid-Etched Bird-Friendly & Decorative Glass from Walker Glass Combining outstanding solar control with distinctive visual patterns and effects, Vitro Architectural Glass has partnered with Walker Glass to offer a full selection of acid-etched, decorative and bird-friendly glass solutions utilizing Solarban® solar control low-e glass coatings and Starphire Ultra-Clear™ glass substrates. AviProtek® E Bird-Safe Solar Control Low-E Glass Bird collisions with glass facades are a major cause of bird mortality in North America, claiming the lives of millions of birds each year. That’s why Walker Glass and Vitro have teamed up to create an energy-efficient, award-winning solution. A “Best of 2015” selection by Archictural Record, AviProtek® E with Solarban® glass is an advanced architectural glass that unites bird-friendly, acid-etched patterns by Walker Glass with high-performance solar control low-e coatings by Vitro. Walker Glass with AviProtek® patterns can be manufactured with either horizontal or vertical visual markers on both clear and Starphire Ultra-Clear™ glass substrates by Vitro or with Solarban® 60 or Solarban® 70XL glass on the second (interior) surface of an insulating glass unit (IGU).