> Permatex, how well would it flow into the seams?
As Ken said, it is much thinner. It is labelled 'flowable' for this reason.
I prefer it over the diluted caulking gun stuff because the latter always goes off a bit fast once it has been mixed.
You see, the silicone usually cures by absorbing water, and almost any industrial solvent contains some water. So as I sit there stirring like mad to mix the thinner into the silicone, what I am actually doing is adding water to the silicone and making it cure ... mumble!
Also, you know how the stuff in one of those caulking guns usually cures before you have used half the contents - within a couple of months? Well, Permatex (and some thin Italian stuff I picked up in Courmayer in ItalY) come in metal tubes and seem to last after opening for years!
Yes, Permatex dries clear. Visibility - depends on your skill in applying I think! :-)