On Sep 28, 8:12*pm, Home Guy wrote:
Ron wrote:
Windshield repair kits can only be used on laminated glass.

Why should it matter whether or not there's a plastic layer
buried somewhere inside the broken / cracked glass?

Because, before the resin is pumped in, a vacuum is applied to
remove all of the air from the runs (cracks).

What does that vacuum process have to do with whether or not the glass
is laminated?

Because you can't pull a vacuum on a single pane of glass.

You have a hole through the glass and runs. All you will be doing is
sucking air. Not to mention that the resin goes into the syringe
before you do anything.

Syringe adapter with double-sided tape goes directly over the impact
point. Then you add the resin. With nothing but a hole there, the
resin has nowhere to go but on the ground.

I guess (and this is a big guess) you could try to put a piece of tape
on the opposite side on the impact point and runs to try and draw a
vacuum, but then you might make the runs get even bigger when you
apply pressure to the tape and glass. I doubt this would work anyway,
because as soon as you put the kit/syringe on the pressure cycle it
will probably start to push the tape free. Hell, just putting the
syringe adapter in place could cause the glass to run out. At least on
a laminated piece of glass you have some support from the other piece
of glass.

If you have your mind made up that you aren't going to replace this
piece of glass, then just fill the hole with some clear silicone. That
will take care of the hole. The runs may never ever spread. Only time
will tell.