No idea yet. Thinking either the rail that goes along the top of the rear window, which also covers the roof join or the awning rail. Both of which will be resealed. Not decided with what yet. Don't think we are confident enough to use just Sikaflex as others have said it isn't as forgiving as mastic. Don't want to end up offering up the rail, for it to stick instantly in the wrong place.
Sikaflex doesn't grab that fast. It comes off easily with white spirit too - until it has cured - then nothing but cutting will remove it. If you offer up the rail dry, then draw a pencil line round it you can be confident you'll get it right. You only have to do the job once with Sikaflex. Mastic doesn't last.
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