Unless something has changed, I've been told by a good friend and consultant to OEM's that 1.5 mils of clear are necessary to prevent premature clear coat failure.
Supposedly, car manufacture spray an average of 2 mils of clear, this means there's the 1.5 mils necessary and a little extra for good measure and so the car's finish can theoretically be worked on at some point in it's service life.
Treat your Altima like everyone should treat every car and that's using the least aggressive product to get the job done and/or learning to live with the deeper defects especially if the car in a daily driver and not a show car on display.
If you do compound the paint, do it once and then afterwards... take care of the finish. By this I mean afterwards, anything that touches the paint should be of the highest quality you can obtain. From washing to drying to polishing and waxing.
Also, try to park your car under cover, I posted some tips in the article below on maintaining a freshly waxed finish, this would apply to paint sealants and coatings too...
All about Pinnacle Souveran Paste Wax
Park your vehicle inside a garage
You can dramatically increase the length of time an application of Pinnacle Souveran Paste Wax will last on your vehicles paint by parking your vehicle inside of your garage. By parking your vehicle inside your garage you will protect the paint from the environment and anything in the environment that would attack your vehicles waxed paint if left outside. Things like,
- Harsh, salty marine air
- Industrial pollution in industrial areas
- Jet exhaust fallout near busy, major airports
- Auto emissions and pollution from areas of dense population and congested traffic
- Naturally occurring contaminants like air-borne dust and dirt, pollen
- Polluted Rain - Either Acid Rain or Alkaline Rain
Park under a carport
While not as full enclosed as a garage, a carport will still help to protect your vehicles finish from the environment, especially the horizontal panels which are the most prone to attack and degradation.
Carports help extend wax protection
Use a high quality car cover
If you don’t have a garage you can extend the life of Pinnacle Souveran Paste Wax by covering your vehicle with a high quality car cover when you’re not driving it. Like a garage, the car cover will protect the waxed body panels from anything in the environment around the car by preventing it from coming into contact with the paint.
