[jjski78]

My personal favorite sealant is Jeffs Werkstatt Prime and Acrylic Jett Trigger. The Prime has a very mild polishing agent in it (I mean VERY mild), and the combination of the two will last for anywhere from 3-5 months depending on environmental conditions, car washes used, etc. They were recommended to me by a fellow detailer and I fell in love at first use. They are stupid easy to use, and on my electric blue they make the metal flake just pop out at you. Sometimes I'll follow up the next day with a coat or two of P21S or S100 (same wax, different can) if I want that deep carnauba look and still have the pop of the acrylic sealant. Another very fast sealant that I LOVE is Optimum Car Care's Opti-Seal. It's a wipe and walk away product, and you use VERY little product per car.

As for store bought stuff, Liquid Glass is a pretty decent synthetic. I've never seen Klasse in a store near me, and I've never used it, but friends of mine who have used Klasse and Werkstatt have said Werkstatt stomps Klasse every time, and my first hand inspections/comparisons confirmed their beliefs.