Yes, I bought a small bottle/vial of it off ebay and "fixed" one of my sights. One dot fell out. I degreased it with a q-tip and alcohol, let it dry, then used a toothpick to place a drop in the hole. I let it dry and it hasn't yet fallen out. It might not fall out, we'll see. It's not exactly the same color when it's light, but when it's dark you really can't tell the difference when it glows.