Only JDW would have the patience to go through such an arduous process. LOL
There is no way I would ever babysit my Mac, tending to it all day long. Then again, I have no particular love for the SE models, so it will never be an issue for me. Fill a tub with 3% H2O2 bought over the counter in bulk at the drugstore, throw in my Mac case, let process for a day in the sunlight while I go about my business and I'm done.
daver_cl, JDW has been "onto something" for quite a while, picking up from the anecdotal reports of those who used basic medicinal 3% H2O2. These guys with the expensive and dangerous 30% solutions are the ones who inevitably run into problems, yet they persist in this more-is-better mentality. Patience is a virtue, as JDW points out with his painstaking gel process. But for the rest of us where dunking is an option, there is no substitute for a mild solution and time to achieve good results.
FWIW, it seems to me, based on previous reports, that the only thing you risk by submersing your SE is that the RF shielding may peel off (and will otherwise do no harm to the case). Unless you are operating unshielded devices next to it, like an external monitor, or an external drive, or a radio, then I don't really see the problem with losing the internal shielding, save authenticities sake. The only reason it's there in the first place is because the FCC made them! Honestly, if the inside of my Mac 128K metallic paint would come off that easily and cleanly, I would be ecstatic, to reveal the pristine interior unseen by humans since that coating was sprayed on in 1984. So in truth, unless you are interested in preserving and/or restoring that SE for historical purposes, I'd dunk that sucker and take the risk.