I described my new 4 inch key scratch in an earlier thread and I'm past being furious and ready to move on to repairing it but I don't want to paint the whole door. My coupe is diamond graphite and I'm afraid of a poor paint match making it look worse than a touch up job. I called my local Colors on Parade guy who did an awsome job on some curb rash on my front spoiler last year. He wanted $100 to work on my scratch but said he had heard good things about Langka and that I might want to try it first. I've read mixed reviews in earlier threads, but nothing recent. Does anyone have any recent experiences or advice? I think the consesus was that it worked pretty well with non-metallic colors but not that great with metallic. Should I gamble for the $50 it'll cost or just pay the painter $100 to do his best? He said he'd touch it up and then wet sand and buff.

 

I've used it before and recommend it. it works as advertised. you use regular touch up paint and apply several layers to build it up so it's taller then the surrounding area. let it dry overnight and work the langka, it takes a few minutes of rubbing but it will knock down the touch up paint so it is flush with the rest of the paint. I gives a nice smooth finish. If you mess up simply keep rubbing and remove all the paint and start over again. I've used it on touch up paint that has been on the car for a couple of months and it worked too, just more work.

It works excellent on non-metallic paint and you can't really tell where the repair was done but on metallic paint it's more noticeable. The langka removes the paint and pigment but leaves behind the metallic flakes so it comes out lighter and more reflective then the paint. What you can do is apply a thin layer of touchup paint leaving it below the paint surface and buildup with clear coat, then knock down the clear coat and you'll get good results. It's a good product and in the long run can save you a bunch of money if you get addional chips. I know it's expensive, I was shocked to see how little product you get for the money but it works. It's a whole lot safer then wetsanding as you don't need to worry about removing your clearcoat and burning the paint, it doesn't affect the factory applied paint.

 

I've used it as well and have had excellent results. It's not a miracle worker, but the end result is much better than anything short of wet-sanding with much less effort.