I have been using UPP and EX quite a bit. There are slight differences, the EX has slightly more depth and the UPP has slightly more gloss. I generally go with the UPP on lighter colored cars, especially nice on silver. There are also differences on using them, the UPP needs time to bond (30-60 minutes), I have found that if it is humid you need to wait a little longer to avoid the streaking, the streaking is either from using too much product or not waiting long enough. The EX can be used in direct sun by applying and removing after a few minutes, but I recommend that you try to keep it on for about 45 minutes which gives it the best look. Toppers - UPP for me I don't see much if any enhancement of applying S100 or any other carnauba, but EX on top of three layers of UPP is stunning. EX is enhanced by S100, I have been able to put two layers of EX followed by a layer of S100 and then tried EX over that with no problem (waited one day between applications). QD's - UPP my fav is QD+. EX - my fav is Quikshine. Platinum QD also looks great on both.
Personally I prefer these products over SG but that is personal preference thing and not saying anything negative about SG, it is a very high quality product.
Unfortunately I haven't tried BF.
Personally I prefer these products over SG but that is personal preference thing and not saying anything negative about SG, it is a very high quality product.
Unfortunately I haven't tried BF.