Last Updated: Jul 19, 2016     Views: 48

From Dr. Robert Brill, Research Scientist Emeritus:

Dilute hydrofluoric acid (H

2F2) is used to etch glass.  It exerts a vigorous chemical attack on glasses that either eats away the glass from the surface rapidly or produces a diffusing (matte) surface effect.

A mixture of concentrated hydrofluoric acid and sulfuric acid (H2SO4) exerts a somewhat slower attack on glasses and is used for acid polishing.

Related Topics

Contact Us

Important Note

Alert: Museum Closed to Public. May Cause Delays.The Corning Museum of Glass is currently closed to the public effective March 16 through April 22, 2020, as a precautionary measure for public health and safety. As a result, resources available to answer your questions are extremely limited. During this closure, you may be interested in searching our Ask a Glass Question FAQs or reviewing our Research Guides on various topics. We also highly recommend checking out The Corning Museum of Glass on YouTube for hours of artist demonstrations, lectures, and special events. Thank you for your patience.

Ask a Glass Question
Provide Your Contact Information
Fields marked with * are required.