You can also use a varnish or a floor cleaner, that's a bit more liquid to assure it gets fully in the joint. Whatever method you use, move the ab joint around to make sure you're working the substance in there. Just make sure it doesn't get on areas that are most likely to be seen on display, keep things clean
.
I'd also advise
against the superglue method just because things can get messy/worse.
