IF YOU can smell these products inside the tank , they are still in need of curing you shouldn't house the dragon in the tank until you smell nothing when the lights have been on for a full day and the doors closed.
The fumes and gases being given off are the cause. I'd put beardie back in the old tank for a month or so and observe closely how beardie recovers - hopefully you haven't poisoned him and he'll be back to his old self in no time.
More time needed for the new tank to air.
Contact Selleys and ask their tech department for a copy of their MSDS , extract
When I worked originally as an analytical chemist in a large steelworks' laboratories , I used these compounds and these were regarded as hazardous and only to worked with in a fume hood and while wearing proper safety gear.
WRT the DAP glue , see
http://www.dap.com/media/154633/alexplus_clr_tdb_29jan2016.pdf
it contains ethylene glycol
extract :
I wouldn't want to have to breath the fumes released by these all day every day .