Get some acetone( nail polish remover) and wipe the label side off .. done
"Jim Watt" <jimwatt@aol.no_way> wrote in message
news:9ro193d0g01raml31qea1tkfvsr4ti2jcr@4ax.com...
> On Sun, 08 Jul 2007 12:04:26 +0100, Tim Jackson
> <tim@tim-jackson.co.uk> wrote:
>
> >Jim Watt wrote:
> >> On Thu, 08 Mar 2007 01:44:38 GMT, dr@him.com wrote:
> >>
> >>> Microwave is just plain stupid.
> >>
> >> Why?
> >> --
> >> Jim Watt
> >> http://www.gibnet.com
> >
> >I couldn't resist this.
> >
> >The idea looks good to me so I just tried it. It works and is quick and
> >easy.
> >
> >I put the CD on a wire microwave pie rack to lift it off the metal base
> >plate and prevent screening. I put in a cup of water to protect the
> >microwave from over-voltage and to limit the power density.
> >
> >After about 15 seconds at 1kW the CD was hot, bowed, crazed and smoking
> >a bit.
> >
> >Effectiveness looks roughly equivalent to shredding into 5mm fragments.
> > Destruction is clearly visible. See http://www.tim-jackson.co.uk/cd.JPG
> >
> >It's harmless to the microwave as long as there is something there, or
> >enough CDs, to absorb any excess power, and as long as you don't make
> >too much smoke and fume. The CD absorbs a lot of power, so I guess with
> >half a dozen you'd have no risk of over-voltage or excessively rapid
> >temperature rise and can omit the water.
> >
> >You'd need some sort of (dielectric or wire) frame to support the CDs
> >far enough apart to expose them roughly equally, for doing quantity.
> >
> >So I can definitively state that the idea is not stupid. It may not be
> >the best solution, maybe relatively labour intensive compared to
> >chemistry, but it certainly is a contender: cheap, produces minimal
> >pollution and uses readily available equipment.
> >
>
> Some hints:
>
> 1. The last thing you need in there is a wire frame !
> although plastic would be fine
>
> 2. You do not need smoke or to melt the disks the beauty
> of the idea is that a short exposure causes the total
> destruction of the metallic film in the polycarbonate
> sandwich without affecting that.
>
> 3. I do it without the cup of water as its only for around
> three seconds burn, you see the flashover.
>
> If you have any free AOL disks they are ideal for testing the
> method.
>
> --
> Jim Watt
> http://www.gibnet.com