Hi
Just after got my sapphire black E90 my dogs decided that they needed to put their mark on the bonnet ,any how they scratched the bonnet lekker deep , totally pissed I went to the local china town in Ottery cape town there's a car shop ,you know ,the kind that sells alot of *&#@
i had one of two choices take a black permanent marker or take one of these touch up pens that they sell
so i bought one that looked more or less like the black on my car bearing in mind that sapphire black has a sparkle sort of like with speckles in it .
went home & proceeded to fill the scratches with this pen (oh R20 )
OK satisfied that the scratches wasn't too obvious i spoke to a friend of mine & arrange that he would touch up the car as there were other dents & things that he needed to see to As I had bought the car out of hand .
I showed him what i have done & what i used
here's the funny part :=):
When he gave my car back looking like new again he asked pertaining to this pen that i had bought
He said that when he flatted the bonnet to prepare it for spray
he noticed that the pen had actually filled the scratches so much so that the marks was gone:coolShake:
He reckons that ,like in your cases , if you can get the pen that matches your paint work ,fill the scratch using the pen ( it actually has a brush at one end & a pen on the other) let it dry & take 1000 0r 2000 grid water sand paper & gentle sand the filled line NOT THE WHOLE PANEL
Once smooth & the line is not noticeable polish the area up
I WOULD RECOMMEND YOU TRY A SMALL SCRATCH FIRST & SEE IF IT WORKS FOR YOU