24405- TEMPILAQ Advanced TL030 Temperature Indicating Liquid, 149 Degree C/300 Degree F, 2 oz. Ideal for Heat Treating, Brass Annealing, and Glass Production, Made in USA

works great

This product makes brass annealing easier. You can figure out how long to heat your cases.

Great product. Easy to use and works well. Would have been a big five star except it was shipped in a ziplock bag package, glass bottle, liquid inside; first order arrived dripping. Return was necessary. Arrived in same type packaging but in good shape the second time.

Good weapon to have in your arsenal if you anneal.

It was useful for what I needed it for. I tightened the top well but still was mostly dry when I needed it again. So, give the top an extra hard twist.

It evaporates in the bottle. I used it two or three times applying literally small DOTs of Tempilaq on brass for annealing for a total of approximately 15 dots. The bottle is now half full, not because i've used that much but because it quickly reduces itself when you open the bottle. Buy the thinner and refresh your bottle here and there... also keep the mouth of the bottle very clean. Otherwise you'll have to break through a cap of dried tempilaq that has gathered on the cap and the bottle mouth.That said, yes, it is useful for annealing as a temperature indicator.

I use it to set the time required for properly annealing case necks. Paint it inside the neck and let it dry. Once in the annealer it will go to liquid as soon as temp is reached. Once the settings are correct I make the run. Only a little is needed for the set up. The bottle will last a long time for this purpose. Make sure to shake it well to mix it before applying.

The media could not be loaded. I have been annealing my brass at a buddy's house for a few months and we use Tempilaq (specifically TL060) to gauge when the brass is properly annealed. It's very simple: swab a little on the inside of the neck and run it through your annealer. (My video is done with the AGS Annealer.)It doesn't get any simpler than that. This stuff is a must for consistent annealing!