[herr_oberst]

Originally Posted by Rusty Heap

Looks like Loctite 380 is a rubberized instant glue. Apply a small bead with a toothpick starting on the backside, then front........

https://www.eis-inc.com/product/instant-adhesive-ph11-loc-380?option=LOC38004

This is exactly how I'd fix it. The rubberized element is key. The smallest amount needed to bridge the gap. I'd also use a small artists paintbrush to clean inside the crack with denatured alcohol. Oh, and I'd carefully drill a small hole where the crack terminates to keep the crack from spreading all the way to the dust cone.

If the LocTite 380 is thin and runny, use blue masking tape to on the opposite side of the crack to keep the glue in place while it dries.

Think it through, figure out your moves, take your time. That's my free advice.