Except
I remember hearing about some school that was sued by the parents of a girl that put her hand in plaster of paris to make a mould and got third degree burns from the heat generated. Very nasty indeed and NOT to be tried at home, not even after shaving.
(Che Grimsdale Best before:, Wed 2 Feb 2011, 17:29, 5 replies)

^ this
google for pictures of her hands if you're not squeamish

*shudders*
( emvee cruor deo cruoris, Wed 2 Feb 2011, 19:08, closed)

^ This
Was just about to call bullshit too. 60 degrees is not fun on bare skin...
(Nightviolet, Wed 2 Feb 2011, 19:36, closed)

Fourth degree I think is the term if it destroys underlying structures.

She was left with basically stumps with a partially working finger or two.
(speedevil, Thu 3 Feb 2011, 9:51, closed)

Well, all I can say is:
it got hot, but not too hot - certainly not painful. Like bath hot, no more.

I think the heat depends on the speed of the curing reaction, and there are different types of plaster. Fast-setting plaster probably gets hotter, I'm guessing? This was slower setting (slower than medical plaster), so maybe that helped.

If I knew then what I know now, I'd probably have done a test-run which didn't involve my cock. On the other hand, it starts cold, so if it began to heat up, I'd have pulled out like a catholic priest in a parishoner!

Which begs the question, why the festering wank didn't the schoolgirl whip her hand out? Or did she plunge it into already-curing plaster?
(moon monkey is busy making memories worth repressing, Thu 3 Feb 2011, 10:43, closed)

Yes, don't try this at home, folks
You get MUCH better results with Dental Algenate, which doesn't heat up at all, and sets very quickly.

Then use the algenate mould to cast liquid silicone, and you've got a fine dildo (I call mine Number Two), which is far more useful than a candle.

You can do your partner at both ends simultaneously, with your own cock!
(moon monkey is busy making memories worth repressing, Thu 3 Feb 2011, 10:48, closed)