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drilling small holes in auto glass???

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'Jeff' Jeffrey Braun

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Sep 16, 1996, 3:00:00 AM9/16/96
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I was wondering if anyone knows if it is possible to drill holes in glass.
I need 5 small holes in my back windshield for something I want to
install, but I don't know if it's possible. TIA!
*** Jeff ***

______________________________________________________________________
( Jeff Braun -- Senior Computer Specialist, Data Management )
(______________________________________________________________________)
( PHONE = (206) 616-1936 University of Washington )
( FAX = (206) 685-3660 216 Schmitz Hall )
( E-MAIL = jbr...@u.washington.edu Box 355850 )
( WWW = http://weber.u.washington.edu/~jbraun Seattle, WA 98195 )
(______________________________________________________________________)


Linda Campbell

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Sep 16, 1996, 3:00:00 AM9/16/96
to 'Jeff' Jeffrey Braun

'Jeff' Jeffrey Braun wrote:
>
> I was wondering if anyone knows if it is possible to drill holes in glass.
> I need 5 small holes in my back windshield for something I want to
> install, but I don't know if it's possible. TIA!
> *** Jeff ***
I haven't personally tried it but it must be possible because there are
businesses out there that do just that - as a crack stopper. As I
understand it they drill small holes at the ends of small cracks in the
windshield to keep the crack from going any further and then fill up the
crack with something to keep it from leaking. Some states allow it -
others don't. But it should prove that it can be done.


Linda


--
"It's easier to ask for forgiveness than it is to get permission."
Admiral Grace Hopper

Linda Campbell / lcb...@memach.com / (804) 543-6801, ext. 304
I don't speak for Metro Machine - nor they for me.

Charles_Spitzer

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Sep 16, 1996, 3:00:00 AM9/16/96
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In article
<Pine.A32.3.92a.96091...@homer27.u.washington.edu> 'Jeff'
Jeffrey Braun <jbr...@u.washington.edu> writes:
> I was wondering if anyone knows if it is possible to drill holes in glass.
> I need 5 small holes in my back windshield for something I want to
> install, but I don't know if it's possible. TIA!

auto glass is tempered. as soon as you scratch it, it will probably shatter.
you can't do this; why would you want to?

--
Charles Spitzer
cha...@az.stratus.com
Customer Assistance Center
Stratus Computer, Inc.
Phoenix, AZ

Stephanie Braman

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Sep 16, 1996, 3:00:00 AM9/16/96
to jbr...@u.washington.edu

'Jeff' Jeffrey Braun <jbr...@u.washington.edu> wrote:
>I was wondering if anyone knows if it is possible to drill holes in glass.
>I need 5 small holes in my back windshield for something I want to
>install, but I don't know if it's possible. TIA

DON'T DO IT!!!! Automotive windows are made of safety glass and as soon
as you drill into the surface, it will shatter into thousands of pieces.
I recently recall someone trying to cut into safety glass and it was a
mini explosion.

For something of this nature, I would suggest talking with a company that
deals with automotive windows as they may have some alternative ideas for
you.

Stephanie


M. Savad

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Sep 16, 1996, 3:00:00 AM9/16/96
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and if it does'nt explode, it will eventually.

---Mike Savad

MikeFirth

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Sep 17, 1996, 3:00:00 AM9/17/96
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In article <323DDD...@mars.superlink.net>, "M. Savad"
<mo...@mars.superlink.net> writes:

>> 'Jeff' Jeffrey Braun <jbr...@u.washington.edu> wrote:
>> >I was wondering if anyone knows if it is possible to drill holes in
glass.
>> >I need 5 small holes in my back windshield for something I want to
>> >install, but I don't know if it's possible. TIA
>>
>> DON'T DO IT!!!! Automotive windows are made of safety glass and as
soon
>> as you drill into the surface, it will shatter into thousands of
pieces.
>> I recently recall someone trying to cut into safety glass and it was a
>> mini explosion.

There are two kinds of glass in most American autos: tempered and
laminated. If you have or borrow Polaroid sunglasses, tempered glass will
show up (under a clear sunny sky) as having dark and light areas as the
stress in the glass changes the polarization of the daylight. Laminated
glass has a layer of plastic between two thinner sheets of glass. Under
US law, the windshield must be laminated to keep people from going through
it. Other windows may be either. My experience has been that sides are
usually tempered and back may or may not be laminated, but then I have
owned my cars an average of 7 years each which doesn't add up to many
cars. Laminated should be drillable, tempered is not and crumbles to
little pieces. Of course, laminated may crack when drilled or
delaminate if moisture gets in. Perhaps you should find another way to
get out back (glue it on and run any wires through the trunk.)

Mike Firth, Hot Bits Glassblowing Newsletter
Home Page: http://ourworld.compuserve.com/homepages/MikeFirth

Ola Anvegård

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Sep 18, 1996, 3:00:00 AM9/18/96
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The windshield is not tempered glass, at least not in Europe. It is
Laminated glass and it is possible to drill holes in. The side windows is
tempered so please don´t drill
in those.

Regards Ola Anvegård

'Jeff' Jeffrey Braun Wrote:
> I was wondering if anyone knows if it is possible to drill holes in
glass.
> I need 5 small holes in my back windshield for something I want to

> install, but I don't know if it's possible. TIA!
> *** Jeff ***
>
> _____________________________________________________________________

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