Sealing around canopy and rear windows?

[wcmorgan]

I am having my airplane painted soon. I would like to know what most people are doing to seal the windows from moisture.
My painter wants to run a bead of pro seal around the plexiglass windows and canopy.

 

[mc607]

(Hope you don’t mind my add on)
Does the sealant get painted or does it go on after the paint? Any pictures would be great for either way.

 

[docjjrmd]

(Hope you don’t mind my add on)
Does the sealant get painted or does it go on after the paint? Any pictures would be great for either way.

I have seen both ways. There is a specific Proseal product for this pupose. See PPG PR-1425 Class B - Canopy / Windshield Sealant. Available from a number of different suppliers, it is not the same as fuel tank sealant.

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[unladenswallow]

I used Sikaflex 522 Caravan Window Sealant for the rear window, as have several other builders here in Europe.