1. Triflow is WAY to thin and after a month or two, it is questionable how much it will keep things from seizing. Great for chains, bad for this.

2. I am very much in the camp that believes you should NOT USE LOCTITE for this application. Would you like to have the ability to change out your cog somewhere down the road? Sure you do. Would you like to be able to do that without having to apply levels of force that will probably hurt you or some part of your bike? Sounds like a good idea! Then use grease, not loctite. Loctite is for stuff you really don't want to move again. You definately don't want the cogs to move on you while you are riding, but this is accomplished by proper installation, not loctite.