It's not that polymer based (ie. Zaino) products don't stay on the car. In fact, most tests I've seen seem to agree that they stay on the car LONGER than carnuba based products. When people say they don't build up, what they mean is that UNLIKE most carnuba based products, multiple coats do not lose their optical transparency. If you wax your car with a carnuba product faster than it wears off
, you can generally expect that after X coats you will get hazing or yellowing from the buildup. Most of the polymer products claim total optical transparency such that multiple coats increase protection and shine, but do not visibly affect the hue of your paint. I'm sure this varies alot with brand used, color and type of paint, and etc.
Who is to say how much of the polymer superiority may be hype for any given product? I'm sure in some cases alot of it is
hype. However, you are most definitely NOT giving up protection by using a quality polymer based product instead of wax.
Edit: Here's the first test that tipped me off to Zaino, and I've yet to find anything which contradicts what is presented here. I've heard on the autopia detailing forums (and there ARE guys there who prefer other products, I'm not saying everything else is crap) that Zaino doesn't look as fabulous on lighter colored cars as it does on darker cars. http://www.nsxsc.com/nsexcitement/waxtest.html
Dark Highland Green #1934
Bone Stock except for a deep Zaino Shine!
1995 4.6L Thunderbird LX in Electric Red -- R.I.P.
<font size=-1>[ This Message was edited by: DHG-1934 on 2001-11-25 02:31 ]</font>