Thread Sealant for Coolant Parts?

View attachment 1715499248
You can find this at your parts store and it's not cheap.. there's a reason why...
I use it on everything and have never had a drop on the floor of any fluid EVER...my2...

I used the red hi temp , and the right stuff in the past , have had just as good luck w/ ultra black , Easier to clean up that right stuff, and has worked as well as the hi temp for me --------