Encapsulated Glass with Metal
Sometimes the encapsulated glass has a metal
trim attached to the rubber such as on the rear
quarter of the Chevrolet Impala. When that is
the case, I have found the trick is to heat the
pinch weld from the inside of the vehicle.
The reason is when you heat from the outside, as
one normally would; the Inductor head is too
close of to the metal trim in the encapsulation
and will get hot enough to melt the rubber.
These are problems I have run into in my
experience and I’m giving you solutions that
have remedied the situation.
The interior trim of the vehicle will have to be
removed. Then holding the Glass Blaster head
about a quarter inch from the metal surface of
the pinch weld, begin to heat the metal. It is
important not to touch metal directly with the
magnets on the Glass Blaster head because the
metal heats so quickly that the metal touching
the magnets can damage them.
By holding the magnets off the metal or making
sure the magnets have thermal insulator pads on
them, you will protect the magnets from being
When the Inductor is turned on and in close
proximity to the pinch weld, you will see the
urethane begin to smoke. At that point, begin to
move the Inductor head around the pinch weld.
Once an area has been heated, maybe 6 to 8
inches, hook the L or leverage portion of
L-wedge into the pinch weld and begin to pry
with outward pressure against the glass.
Since the removal is from the inside, open the
doors and or windows to get plenty of
ventilation from the urethane smoke. If you have
the Cold Shield Thermal Gel, spray it on the
This will give added protection from any heat
transferred to the metal trim. It probably isn’t
necessary, but I personally use it to eliminate
Continue to work around the glass from the
inside using outward pressure with the L-wedge
until the entire glass urethane bonding is free
from the pinch weld.
Within about 5 minutes or less, that quarter
glass will be in hand and available for sale or
be reinstalled once the quarter panel is
completed being painted.