A few years ago I posted this same question about a white sealant that will not attract black mold and was recommended Dow Cowling. Well I can tell you that it is no good because black mold has grown on a lot of it in the last few years. Even more extraordinary is the very old sealant that was here before I moved in 24 years ago is still mold free. Work that one out!
Even the new windows we had installed over 3 years ago have started to get mold. It seems they just don't make it as good anymore.
Even the new windows we had installed over 3 years ago have started to get mold. It seems they just don't make it as good anymore.