So yesterday’s plugging with the high heat JB Weld Epoxy Putty cured hard as a rock overnight.
![](https://i0.wp.com/zuczek1302.com/wp-content/uploads/2019_AS41_Build/Day6/AS41_Build_Day06-1.jpg?resize=640%2C360&ssl=1)
Both the interior plug and the exterior one, both covering the aluminum NPT plugs, do not feel like they’ll be going anywhere soon.
On to other installations! Yay!