There are so many glazing options from:
Standard Premium Clear Glass 2.5mm which is a high-quality regular framing glass
Tru Vue UltraVue UV70 Glass
This 2.0mm thick water white glass offers crystal clear colour transmission and a virtually invisible, anti-reflective surface for truly amazing clarity.
Conservation Clear is the standard conservation grade glass product. Most frame shops use this product as their default glass option. Conservation Clear glass provides 99% UV protection to protect against fading.
AR Reflection-Free® glass is the best anti-reflective glass solution when preservation is not a concern. This high-quality, anti-reflective glass product provides 78% UV protection and is optically coated to create a virtually invisible finish. Similar to its other anti-reflective products.