audipower said:
Na. :down It does make a difference in longevity, shine and coating. Also, you can't apply it the next day or as he says the next morning. I put 2 coats 24 hrs on and 24 hrs apart and it will last 10-12 months. I have show cars that last 18 months and going on one of my show cars. I've been using KSG for 5 years and my Uncle who taught me has been using it for 9 years. Mr. Hyde isn't it funny where going back and forth about sealents! ha ha ha
I like UPP but it doesn't touch SG's longevity and depth on darker paints. I bought one bottle of UPP a year ago and I still have it.
You can use another QD just make sure there's no alcohol in it. I know Meguire's doesn't. Use that or a California Duster to get the dust off (what I use).
I never noticed a difference in longevity between both methods, and I've been using the twins for 5+ yrs now as well. Im now on my 3rd vehicle with them. I also noted the paint on my blue cars to get more depth from the AIO than the SG which is why I always use it as a foundation after whatever prep work I need to do.
If he puts a coat on this morning, buffs it off now, and reapplies tomorrow morning after Qd'ing, thats a perfectly good amount of time to allow it to cure, and definitely fits within the 18-24 hour window.
UPP definitely does not last as long as SG, but it just goes on and off so much quicker, and easier that I can easily put on a coat on after a wash whenever I want. I love the wet look, reflections, and smooth as silk finish it provides. Its practically like using a good carnauba. In fact, its just so quick, and easy that I use it much more than I ever used SG, and a fresh coat of either one always beats one thats a few months old.
He also shouldn't avoid any QD with alcohol in it on his paint. Anything with carnauba should be avoided as well if he plans on putting on another coat as it will interfere with the bonding. The Sonus and 4 star UGE both work great with the Klasse twins giving them a little freshening that I never got with any other QD.
Whatever your poison, since he does not have a completely enclosed garage I still would not recommend leaving any product on the car overnight to buff off in the morning. You say dust will not be a problem, but I disagree. If dew collects on the cool sheet metal overnight; dirt, dust, and whatever else gets blown onto the car will stick to it, and the damp sealant just to be rubbed into the the paint while buffing it off. :soscared: Defeats the purpose if you ask me.
I personally try and keep the car completely dry for at least 24 hours after buffing off a coat of SG or UPP to let it set with no interference, so I dont know how Id feel about hosing off the car with an unbuffed layer still sitting on it. I also dont know if a rinse would remove any dirt particles sitting on the sealant, so I personally wouldn't do it.