Glad you enjoyed them, it was great for me remembering old memories about my dad too.

Yes sorry about Araldite, it's a common word for me.

As others have correctly said it's a two part epoxy glue, but it can do much more that just stick two surfaces together. It sticks to pretty much anything and also has volume so they don't need to be a perfect fit, it fills in the gaps so you can also repair things with chips missing. It's also long lasting and quite hardy to heat and water. Just make sure everything is in place when it sets!