Rob,
Thanks for that. I was wondering what the Lexan stuff i've been hearing
about was. But both of them are illegal, or so I've been led to believe
(in victoria). Or maybe it was the perspex only because of the
scratching?
Regards,
Dave
>>>>>>>>>>>>>>>>>> Original Message <<<<<<<<<<<<<<<<<<
On 4/1/03, 3:55:13 PM, "Cleary Signs" <[EMAIL PROTECTED]> wrote
regarding Re: removing door locks -Plastics definitions:
> same here,
> make signs out of both
> Heath
> ----- Original Message -----
> From: Rob P <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, April 01, 2003 12:57 PM
> Subject: Re: removing door locks -Plastics definitions
> > Just to clarify the plastic window issue before people go out and buy the
> > wrong stuff, here is a quick rundown on the different products and brand
> > names.
> > "Perspex" is the brand name for a German made Acrylic plastic. It is the
> > best quality acrylic in terms of clarity as they use very little recycled
> > material in the production, compared to cheaper acrylics from Korea and
> > Taiwan which may use up to 40% recycled material. Great for optical
> clarity
> > but not toughness as it cracks easily. On the other hand acrylic is easy
> to
> > mould, just heat it up in an oven to 120-160 degrees Celsius and it will
> > slump onto any shallow profile shape you place it on. Cut edges can be
> > smoothed to a gloss by carefully "flaming" it with gas torch/oxy
acetylene
> > handpiece after a light sanding. If you don't have access to a torch, use
> > fine wet and dry then polish the edges with a rag dipped in Brasso.
> > "Lexan" is the brand name for several types of Polycarbonate (not
> acrylic),
> > made by General Electrics Plastics if I recall. This has higher impact
and
> > scratch resistance than Perspex (acrylic) and is available in different
> > grades right up to bullet-proof. This is the stuff you want to make your
> > smash-proof windows out of. I beleive it is harder to work with than
> acrylic
> > and I'm not sure of the heat moulding temperature or finishing methods
> > required.
> > So basically Perspex is acrylic, Lexan is polycarbonate and the two have
> > very different properties. I used to work in the industry so I know a
> little
> > bit about it.
> >
> > Cheers,
> > Rob P
> >
> > ----- Original Message -----
> > From: "David Costello" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Tuesday, April 01, 2003 7:33 AM
> > Subject: Re: removing door locks
> >
> >
> > > when I was doing my automotive pre-vocational course at tafe years ago,
> > > several attempts were made on my old XC Falcon. First time they smashed
> > the
> > > 1/4 glass then ran, I'm guessing that one was a test run to see who
> would
> > > come outside. Got my 1/4 glass replaced the next day, that day at TAFE
> it
> > > got broken again, this time someone interupted them. So my teacher and
> I
> > > went and made up some perspex 1/4 glass and fitted them, the only hard
> > part
> > > was the original glass had a slight curve in it, but wasn't all that
> hard
> > to
> > > replicate. Not only did the perspex save my car, but lots of other cars
> > > from the park because the security guard came out and caught some kids
> > > sitting there whacking away trying to break the glass haha
> > >
> > > Dave
> > > ----- Original Message -----
> > > From: "Paul Stanley" <[EMAIL PROTECTED]>
> > > To: <[EMAIL PROTECTED]>
> > > Sent: Sunday, March 30, 2003 7:32 AM
> > > Subject: Re: removing door locks
> > >
> > >
> > > > Yeah I always wondered whether you could replace the glass in the
> > quarter
> > > > window with polycarbonate ('lexan'). Although would it then be
> possible
> > > to
> > > > pop the whole piece out with a big enough 'tap'?
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "Geordie" <[EMAIL PROTECTED]>
> > > > To: <[EMAIL PROTECTED]>
> > > > Sent: Tuesday, April 01, 2003 7:20 AM
> > > > Subject: RE: removing door locks
> > > >
> > > >
> > > > > Perspex windows...
> > > > >
> > > > >
> > > > > -----Original Message-----
> > > > > From: [EMAIL PROTECTED]
> > > > > [mailto:[EMAIL PROTECTED] Behalf Of Terry Rudd
> > > > > Sent: Tuesday, 1 April 2003 7:07 AM
> > > > > To: [EMAIL PROTECTED]
> > > > > Subject: RE: removing door locks
> > > > >
> > > > >
> > > > > Tony,
> > > > >
> > > > > The thief's in your area are a cut above the ones around here - our
> > > > > delightful thief's just smash the quarter window with the first rock
> > > that
> > > > > they can find and there's not a lot anyone does about it these days.
> A
> > > > good
> > > > > 3 way immobiliser means that usually you get to keep what's left of
> > the
> > > > car
> > > > > though, hopefully enough of it to start again.
> > > > >
> > > > > regards
> > > > > Terry
> > > >
> > > >
> > > >
> > >
> > >
> >
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