Are you asking if zoas are poisonous? Although you may get a variety of responses, a good rule of thumb is to wear eye protection and gloves when handling zoas and palythoas.
The short answer is that it's unlikely. But you should treat them as if they are poisonous. They are known to squirt too, so wear eye protection. But it's only specific species that have Palytoxin.
From what I have read, the main danger is when you are physically damaging them (like if you are cutting them apart to frag them, or otherwise killing them). If all you are doing is gluing them, the risk is probably low. I always treat them as if they are poisonous whenever I handle them.