I need to glue the HVAC box in my car back together (I replaced the AC system, and the only way into it was to split it apart where Ford sealed it). The Goop adhesive I used didn't hold up. Fortunatley, I didn't have the car all back together with the heater core and AC system charged. Does anyone have any recommendation for stupid-Strong adhesive that'll hold up to the heat from the heater core?
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