I’m an early adopter of this product and had the opportunity to test it over several months. I use it to protect my art, and it works great. I haven’t noticed any yellowing, even for pieces exposed to sun through the window, and the coat has the advertised glass-like look, which is fantastic. I was pleasantly surprised by how easy this resin is to apply: definitely fewer bubbles and a longer time to apply.
I will buy again!