Background
Quarter glass fixed window
The New Beetle’s rear quarter glass fixed window is held in place with a special urethane formulated for high bond strength. Typically this type of adhesive has a 1200 PSI tensile and 550 PSI shear strength. This basically means it’s virtually impossible to pull the window away from the frame with the adhesive intact, and difficult — but possible — to cut through it.
GT Tool’s glass removal sheath blade
Specialty tools, like a sheath blade for a reciprocating saw can be used, but these are generally for heavy use auto body and salvage yard applications.
For only two windows, a good wide blade with a handle and a heat gun can handle the job.
