Seal for Replacement Window

[yudamann]

I obtained a new relacement window for my copilot side window, dual pane type that was seriously fogged. I have learned that Tiffen recommends a factory gasket to seal these windows. I would like to replace the window using sealant similar to that used for windshields and not purchase a perhaps costly custom gasket. I am told that silicone sealant will not hold up in this application. Has anyone used something similar with proven results?

[RV Wizard]

Use butyl tape on the flange of window frame making contact with outside wall.