A different approach:
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With the help of a small utility knife you get the straight angles on the rear sights.
Let it dry for twenty minutes, when it feels dry to the toush you press gently and remove the excess.
If it doesn't look right,wipe the whole thing off and start again. No hard solvents are needed.
If you ever had a watch with glow in the dark hands, ( not the tritium ones, the painted type) that's how it works.
They need no maintenance at all and as long as they get a bit of light, they'll work for you.
If you keep your firearm locked, inside a drawer or safe, keep an LED lamp with it. A couple of seconds with an LED small lamp will suffice. it will make your sights glow very quick.
In any case the type of firearm, the ammo, sighting method etc. are pretty useless if the operator doesn't have the necessary training.
The photo below is a pretty good example, lets imagine this:
The home owner already has ample advantage over any intruder, the inside of his home is on the clear, the rest of the family is already at their "Alamo", there are emergency lights, there are dogs on the prowl, a 911 call is in effect, the sights are "sauced' and one round is ready to go if any SOB with bad intentions shows his face.
The picture doesn't show it but the home owner is behind a patio wall for cover.
(This is a fictitious scenario as example)
I've used it on a couple of my pistols and really like the performance. There's more on your sights than on a small watch hand, thicker, too! A bright light shown on it for a few seconds is all it takes. I even applied it to my son's Air-Soft rifle and pistol. That looked great outside on a camping trip a couple of weekends ago for an Air-Soft weekend with his friends! If you try it, you'll like it!
"If you can do it, you damn well better be able to look at it!".....Matt Helm