it is the accelerator that is drying out the nylon.
there was a thread about it here at one time with a list of the accelerators that would and would not destroy nylon.

it's always best to use old nylon parts during a build where you use accelerator, then use brand new nylon parts when doing the final assembly.
accelerator really should only be used in a situation where you need to tack glue, or stop glue runs.
accelerator really weakens any joint as the CA is not penetrating.