I replaced the front and rear plexi glass windows in my Lil Bigfoot
I have had the leaking problem in the past with plexiglass windows that I replaced in Scamps.
I tried window sealer after the fact and other things and managed to mar the Plexiglass.
The Lil Bigfoot
has window frames front and rear and the plexiglass is held in with rubber moulding on the outside.
I ran a fine bead of silicone across the bottom and up the sides about 3 inches before placing the plexiglass in the frame.
A small portion oozed out but after it cured it was easy to remove.
If I ever do another Scamp I will use the silicone in the rubber channel the plexiglass fits in.
There is a time and place for everything.
The silicone will will remain flexible, seal out the water and will not degrade because it's not exposed to the elements.