Glass Pro Inductor
12
the heating attachment. Maintain the distance as you progress around the window.
11. As previously stated it is best to start in a corner on the same side of the vehicle where the repair
will be made. Start by moving the heating attachment back and forth about 12 inches on each side
of a corner at a rate of about ½ inch per second. Heating too much of an area is ineffective
because it reduces the amount of heat produced in the pinch weld. Make about 4 passes over the
corner. A light trail of vapor/smoke should be visible by this time. Heavy smoke is not good, stop
the process and inspect the vehicle to determine the cause of smoke. Do not breath the vapors.
An external air supply respirator is recommended. Hydrogen Cyanide gas is emitted from the hot
urethane, which can be poisonous.
12. Once the vapor is visible, you are at the optimal temperature for the urethane to release. Gentle
outward pressure is required to break the bond. It is possible for it to take several minutes to break
the initial bond of the urethane. Once the bond is broken, the urethane will not re-bond with the
metal. A suction cup can be used in the corner to provide a location for pulling the glass as the
pinch weld is heated. Once the corner is lifted, a plastic wedge, such as the CarDuction glass
wedges can be inserted behind the glass. The wedges provide outward force while heating,
allowing for one man removal of the glass. Be careful. Do not put too much pressure on the glass,
or it will break. Front glass is laminated and is easily cracked. Side and rear glass are tempered
and much more durable. Start with rear or side glass first then progress to windshields as you gain
experience. It’s best to practice on salvage or totaled vehicles first to get familiar with the
techniques.
13. Add wedges or reposition other wedges as you move around the glass. Tempered glass can
withstand some prying without breaking. If a prying action is used, it is best to pry away from the
car to prevent unnecessary paint damage that could occur if pressure is applied to the paint with
the wedge by prying in the opposite direction. Constant outward pressure is necessary to allow the
window to release at the lowest possible temperature. See illustrations and notes on the next
pages for additional information.
14. Typical removal time for small quarter glass is around 3 to 5 minutes. 10 minutes is not
uncommon. Typical removal time for rear glass and SUV side glass is around 10 to 20 minutes.
Front Glass can be removed in as little at 15 minutes, but some larger vehicles require up to an
hour to remove front glass.
Removing bonded composite panels to metal, i.e. Camero/Firebird roofs:
Gently place a wood or plastic wedge between the inner and outer panel to be separated. Looking at the
panel from a side angle you will begin to notice a slight dimple in the panel, stop, this should be enough,
begin to work the Glass Pro hand piece over this dimple in a circular motion applying even heat to the
general area. Once this dimpled area releases, push the wedge in until you see the next dimple and
repeat. Continue to do so until you reach your objective.
NOTE! Never apply power to an unloaded heating inductor. The body panel or metal object to be
heated acts as a load to absorb the energy generated by the inductor. Without the load, the
inductor will overheat. Overheating the inductor can cause damage and/or personal injury.
