05:23 <wpwrak> nice to have products in your household where they print the LD50 on the package ;-)

05:23 <wpwrak> at least better than the blast radius, i guess

07:05 <whitequark> good bunch of those too

07:33 <wpwrak> note to experimental cosmologists: please declare any experiments with a blast radius exceeding 1 gigaparsec before the competent authorities

12:00 <DocScrutinizer05> well, on that glue they don't. I googled and got that security asessment for the substance

12:02 <DocScrutinizer05> seems to me that stuff cures with water just like cyanoacrylat does

12:05 <DocScrutinizer05> way slower though, plus I dunno but when it's diluted enough in water, aiui it doesn't build polymeres anymore, which seems to suggest you can rinse it off with lots of water until it cures and then it's water resistent

20:26 <arossdotme> knwo of any small/action camera sized 1080p or maybe even 2k+ :) cameras are there that are floss and maybe even copyleft hardware? diy 1080p webcam+tiny computer?

20:27 <arossdotme> neo900 :) heh?

20:45 <whitequark> DocScrutinizer05: that glue is based on an alkoxysilane

20:47 <DocScrutinizer05> when that's the generic term for N-(3-(Trimethoxysilyl)propyl)ethylendiamin

20:47 <whitequark> the mechanism is that hydrolysis produces silanols, which condenses with other silanols. when you dilute them, the result is that you get lower molecular weight polymers

20:47 <whitequark> yeah

20:47 <whitequark> oh noticed that you wrote that

20:48 <whitequark> I figure you don't need to *wash* it with water, just wait until it cures entirely

20:48 <DocScrutinizer05> nah, I thought it was water soluble until cured. It's rather not

20:49 <whitequark> Water solubility 1e-06 mg/l

20:49 <whitequark> 1ng/l? hard to get less water soluble

20:49 <DocScrutinizer05> sounds odd

20:50 <DocScrutinizer05> even diamant is that 'soluble' in water ;-)

20:51 <DocScrutinizer05> nanogram, ohmy

20:52 <DocScrutinizer05> given the complexity of the molecule, it can't be many of them to make one nanogram

20:52 <whitequark> "estimated; value may be inaccurate because material is hydrolyzed"

20:54 <DocScrutinizer05> yeah, they define "soluble" as "how much of the original substance can be found in a certain amount of slovent"

20:54 <DocScrutinizer05> I'm rather interested in "how much of the existing material will vanish over time when treated with a certain amount of solvent"

20:56 <whitequark> polysiloxanes are highly insoluble in water

20:57 <DocScrutinizer05> yes, but the uncured glue is no POLYsiloxane aiui, no?

20:58 <DocScrutinizer05> it polymerizes with water, and by slitting of methyl froups

20:58 <DocScrutinizer05> splitting

20:58 <DocScrutinizer05> off

20:58 <DocScrutinizer05> ohmy

20:59 <DocScrutinizer05> it polymerizes with water, and by splitting off methylene

20:59 <DocScrutinizer05> aiui

20:59 <DocScrutinizer05> with too much water the polymer chains are short

21:00 <DocScrutinizer05> thus not creating a decent glue effect

21:00 <whitequark> I don't understand the precise conditions you are speaking of

21:00 <DocScrutinizer05> I speak of rinsing uncured glue with water

21:00 <whitequark> if you mean just "dump glue into water" then it will be so dependent on minute details that you can't make any prediction

21:01 <whitequark> e.g. the rate of surface area to volume is the major one