The "thread lock" agent on the rotor bolts from Honda and apparently other brands as well is not red LocTite. It is not LocTite at all. It is a non anerobic plastic that is pre-applied to the bolts and cured before use. If you are looking for a substitute agent, perhaps "Vibra-Tite VC-3" is an appropriate choice, perhaps the same agent. I also suggest using new hardware here, but also agree that the residual agent on used bolts would be effective for another use or maybe two.
Are you sure the rotor is warped, or is the support crown bent? I believe one of our members had succes in carefully straightening the support crown.
prs