The best way to deal with scratches is to stop worrying about them. Treat them as well
earned battle scars and forget it.
Sure, you can polish out scratches. But
within a few days or weeks you'll get new ones, and you'll want to polish those out too.
And all that time looking closely at the finish while you polish means that you start
noticing fine scratches that you previously wouldn't have spotted. Before long you start
giving it a regular treatment all over to keep it nice and shiny. And after a while you
get patches where you have completely worn through the gloss coat and are trying to get a
shine on the colour coat.
All of these scratch removers are a very fine
abrasive in a liquid/paste carrier. They work by removing material. Polishing out a
scratch can be done in two stages. When you cut into a finished surface (which is what a
scratch is) the edge of the scratch is a sharp edge which catches the light and draws the
eye. So light polishing will round that sharp edge so it does not reflect so obviously;
the scratch is still in the surface but it becomes less noticeable. The next stage is to
remove more material around the area of the scratch to completely remove it. This leaves a
slight dip in the surface which will remain visible as a flaw in the reflection on a gloss
finish, like a distortion in the surface of a mirror.
T-Cut will work, but I
wouldn't recommend it. It is designed for Car paints which are very hard (the paint on a
car has to withstand the abrasion of fine dust in the air at speeds in excess of 100MPH)
so it is a very aggressive cut.
Brasso and Silvo are a similar grade of grit as
T-Cut and produce a similar finish. Both are less aggressive than T-Cut. Silver is a
harder metal then Brass so Silvo has a more aggressive cut than Brasso. Both are useful in
the workshop but Brasso is a far better option to use on finishes. You can get a very good
gloss finish on an instrument with Brasso and a lot of elbow grease.
a much finer abrasive in a paste used for polishing metal, so it is a little more
aggressive than ideal for guitar finishes. However, used with care it is OK because it is
such a fine grit.
I don't know the product you linked to, and their FAQ's don't
actually tell you anything about the grit of the abrasive or the composition of the
carrier cream. But I would expect it to be the same grade of grit as Autosol but less
If I were to reduce/remove a scratch I would just use Brasso, and
maybe a final buffing with Autosol. Alternatively, I would consider using the same sort of
polishing compounds used for guitar finishing like these Colour Tone polishing compounds
But I generally wouldn't bother on my own guitars, and would advise against. It just
isn't worth it.
Largely, but not entirely, dysfunctional.