Flex Cyanoacrylate (CA) Glue
Eliminate the CRACK
CA glue is one of the go-to items for finishing but if you have experienced cracking finishes from CA you know how frustrating that can be. I have had no cracking issues since I switched to Flex CA. With a shelf life of up to two years this is a very useful product. Even with that longevity I would still plan to rotate it out after 6 to 8 months just to be safe. Reduce or eliminate the crack, switch to FLEX.
Manufacture recommends thin for pen makers primarily but I have had great results using both, awesome stuff!