22:48 <Noxz2> Okay, completely bored at work so researched a bit on epoxies and such.. I am planning on using certain solvents (think to remove PR) that seem to attack quite a bit of stuff.. well, I figure I need the lab table covered in something protective so I searched for such epoxies.. commercial ones are only available to companies or are way too overpriced

22:49 <Noxz2> I came across RDGE, Resorcinol diglycidyl ether, CAS: 101-90-6

22:50 <Noxz2> fairly easy to make by oneself, Resorcinol in an excess of Epichlorohydrin, heated up to reflux and dropwise add NaOH in ethanol or similar

22:51 <Noxz2> kind of curious regarding about epoxies further.. I rememebr there was a guy in here that was talking about making his own

22:52 <Noxz2> anywho, I figure add some UV reactive curing/hardener to the mix and you have a nice PR

22:53 <Noxz2> I havent looked too much into the PR aspects of it, because, honestly, I just want a resistant lab bench at an acceptable price

22:57 <Noxz2> I would test a small amount of a cured blob or whatever in certain solvents, and if it gains weight/noticeable swelling than I must have done something wrong ;)

23:10 <Noxz2> btw, the main compound in most epoxies for fiberglas and such is Bisphenol A based (bisphenal a diglycidyl ether) versus Resorcinol.. but fairly similar

23:11 <Noxz2> but bisphenol gets attacked readily in comparrison

23:12 <Noxz2> my idea (for the lab bench) is to use RDGE with some novolac resin, and dilute it with acetone or similar (it evaporates fast) plus the curing agent

23:12 <Noxz2> heh, work sucks ;)

23:30 <Noxz2> another half hour or so then I'm heading home.. my home box should get any responses if someone comes up with something to say (even regarding PR)

23:35 <kanzure> what do you mean by PR?

23:35 <Noxz2> Photo Resist

23:35 <Noxz2> my application in this scenario is as an epoxy for a lab bench, chemical resistant

23:35 <kanzure> don't have much to say, but here's some stuff http://diyhpl.us/~bryan/papers2/optics/photolithography/

23:36 <Noxz2> ah, thanks

23:48 <Noxz2> found a book chapter in there where a section is talking about PR chemistry