This explains it better than I can:
Believe it or not, choosing the right glass for your framing project can have just as much of a “Wow” factor as the choice of a frame and mat.
With Museum Glass you can clearly see the difference. It’s almost as if there is no glass at all. Reflection is reduced by over 85 percent, for the lowest possible reflection rating and the highest light transmission of all other glass on the market.
How does Museum Glass do it? Tru Vue’s Magnatron Sputtering, a proprietary manufacturing process, creates an ultra-thin coating on the glass that suppresses the reflection of visible light. This coating renders Museum Glass nearly invisible to the eye, allowing almost nothing to come between you and your ability to enjoy the beauty of whatever is in the frame. Imagine—optimal clarity for true color transmission. The highest brightness and contrast levels available. And the greatest color neutrality around.
But there’s more. Museum Glass blocks 98% of harmful UV rays from indoor and outdoor lights. Museum Glass actually helps protect your artwork from fading, so your framed piece will last a lifetime.
Choosing the right glass clearly does matter. That’s why more “Wows!” are being heard from people who use Museum Glass to finish their framing projects.