I have been watching youtube videos on how-tos and it seems that people have different ways. For our cars with special clear coat, what is the best product to use when polishing out small scratches and should I rub with heavy pressure?

What is the technique recommended? Thanks.

 

I have the same issue with the scratches and I've been recommended Meguairs M105 & M205.

 

megs m105/205 are great products.
Mezerna fg400 has slight less cut than 105, but finishes out with less marring/haze with virtually no dust. You should invest in a dual action polished like porter cable 7424xp.

 

Pretty much everything you need. What special clear coat are you talking about? Self healing paint?

Auto Detailing Guide - Detailed Image

Auto Detailing Guide - Detailed Image

 

yes, is there a special way to care for it?

 

Here's a great detailing resource.

http://www.autopia.org/forum/forum.php

 

(Nissan) Scratch Shield Paint

Repairs fine scratches, restoring painted surfaces close to their original state anywhere from one day to one week. Nissan paints by using a special highly elastic resin that has been combined with a conventional clear coat to increase the paint's flexibility. This has also increased its strength by raising the resin density. Contains a self-healing, heat-activated, resin-compound that expands to fill fine scratches,

The paint does not self-repair if scratches are deep enough to sever the bonds within the clear coat or if the clear coat has been peeled off. The amount of time required for self-repair depends on the surrounding temperature and the depth of the scratch. In some cases, restoration may take up to one week.

Be cognizant that any friction heat generated from polishing will cause the elastic resin coating to swell, which will temporarily fill the defects, but when it cools down, the damage will reappear

Correction - use a random orbital polisher and Optimum Polymer Technologies - polishing and cutting pads, their low profile, reticulated, open-cell foam interface backing to disperse heat. Menzerna PF 2500 - Power Finish Initial speed #2 to spread and evenly distribute polish on the pad, speed 4-5 using medium heavy pressure followed by SF 4000 – Super Finish Polish speed #3 using medium light pressure


[EDIT:01.04.13 Spelling]

 

As mentioned above our detailing guide plus our Ask a Pro Blog are great starting points. These polishes are much more effective with a buffer, but a hand application can be done. For pressure I generally use light to medium pressure depending on the vehicle, polish, pad, buffer, speed, etc. With a buffer my pressure usually ranges from 5 - 10 lbs so the buffer pad can still spin freely. By hand you'll most likely want a bit more arm pressure 10 - 20 lbs of pressure but it can be difficult to sustain this consistently throughout the detailing process.

Good luck!

Greg @ DI