Unelko Corp. released Invisible Shield PRO 15, which was developed after years of research for the preservation, enhancement and “easy clean” benefit of commercial glass. This cleaner durably protects glass with a hydrophobic water, soil, stain and bio-film repellent “barrier” that preserves and protects glass and other surfaces against corrosion, scratching, pitting, and the adhesion and growth of bio-films and microbes.