Replacement for Silicon as sealer?

a1bigtuna Registered Users Posts: 21
I have read in this forum that Silicon sealant does not protect against moisture vapor. What can be used in place of it? 3M 3000WT and Locktite PL have sealant in tubes that do not mention containing silicon. Are these suitable, if not, what can be used to seal the glass to an aluminum frame and in between the frame corners?