There are now 3 classifications of paint protection: Sealant, Waxes and Coatings. I copied this post from a similar question in this same section. Pls forgive my laziness in not re-typing it:
I'll suggest a few things for you. All of these items are available at Autogeek. I have a funeral home as a customer (I do detailing on the side) and I put a double coat of Duragloss followed by Collinite wax. The Colli is a synthetic wax and is incredible. You need to let the DG cure for 12 hours prior to sealing it.
http://www.autogeek....nce-polish.html
http://www.autogeek....or-wax-845.html
That combo is hard to beat. It should last you a year with proper wash techniques (not using Dish soap, etc)
Here is another alternative. These 2 products are cutting edge and will give you protection measured in years. The CQuartz is easier to use IMO but both have advantages/disadvantages. You can use them on paint, chrome, ext trim and glass!
http://www.autogeek....quartz-kit.html
http://www.autogeek....-opti-coat.html
If you go this route, you will be blown away by how they react to dirt and water. Live2Detail forum and Autogeek's forum has a lot of info on all these products I mentioned.