PDA

View Full Version : Deep scratch repair



Pages : [1] 2

A4 1.8tqm
08-19-2009, 09:00 PM
To start I must admit that throughout this process I have felt that my technique is "wrong" in several ways,... but boy is it workin'!

Materials: Factory touch-up paint and clear coat pens (felt tip type), 2000 wet sand paper, Menz Power Gloss, Flex 3401, LC orange pad and a playing card.

The process:
I started by applying the touch up paint in 1-2 inch increments and using the playing card to remove the excess immediately. This left paint in the scratch and a very fine layer surrounding. Once I got the area done I let it dry just until it was no longer tacky.

The scratch before any attempt to wet sand etc. (old pic)
http://i550.photobucket.com/albums/ii437/dave22234/IMG_1599.jpg

The paint is already dry, I couldn't take pics during.
http://i550.photobucket.com/albums/ii437/dave22234/IMG_2243.jpg


This is where my process may be considered "wrong". I used the felt tip of the paint pen with out releasing any paint, it was almost dry. I proceeded to go along the scratch in tiny circular motions, again, not applying any more paint. this process just softened the half dried paint and pushed it into the scratch. After repeating a few times the scratch was filled almost level.

Dried. This is how it looks in between each re-softening pass.
http://i550.photobucket.com/albums/ii437/dave22234/IMG_2249.jpg


This is a couple passes in after wet sanding and compounding. Then reapplying.
http://i550.photobucket.com/albums/ii437/dave22234/IMG_2258.jpg

This process totally rely's on not applying more paint and pushing re-softened paint into the scratch. I'm quite sure that this will have negative effects on bonding and I will catch some heat for this.

After a few layers I let it dry over night. Before wet sanding I re-re-softened the excess paint and wiped it off with a misc. use MF taking great care to not soften the paint in the scratch. This really reduced the amount of sanding necessary. Power Gloss takes care of 2000 wet sand marks with ease.

The spot where the scratch is almost gone was for sure the worst part in that area, the was knife apparently pivoted and removed a nice chunk.
http://i550.photobucket.com/albums/ii437/dave22234/IMG_2255.jpg


These pics are the absolute best I could do to show remainder of the scratch.
http://i550.photobucket.com/albums/ii437/dave22234/IMG_2259.jpg

http://i550.photobucket.com/albums/ii437/dave22234/IMG_2260.jpg


The darker parts in the middle of the scratch and to the right are where I sanded all the way through the Clear in previous attempts to reduce the visibility by wet sanding.:eek:
http://i550.photobucket.com/albums/ii437/dave22234/IMG_2261.jpg

http://i550.photobucket.com/albums/ii437/dave22234/IMG_2262.jpg

With the scratch nearly level I tried to apply the clear coat with the same "almost dry applicator" method. Unfortunately the clear coat pens tip fully saturates with out even "pumping". I ended up removing the paint from the scratch in a small area and had to start over in that spot. So I redid that spot and then tried again but let the tip dry out a little. The clear is drying right now and i can't wait to see/post the final results.

LuxuryMobile
08-19-2009, 09:06 PM
Looks pretty darn good to me. And great write up on your process.

killrflake
08-19-2009, 09:17 PM
Unusual method but seems pretty effective in your case. I've never had really great success with chips and such so I'm always interested in seeing what's working with other people. Thanks for the write up.

alowe
08-20-2009, 07:00 AM
Yeah, looked good to me!

karburn
08-20-2009, 08:55 AM
Thanks for the idea and description. This bears looking into!

A4 1.8tqm
08-20-2009, 06:33 PM
Thanks for the reply's guy's.

I haven't had much luck with the clear coat pen. Every time I've tried it messed up my results. :mad: I assume that I need to let the paint fully cure before applying the clear. It would be nice to get some feedback from a pro painter regarding this process. I think with some experimentation, a technique able to get near 100% correction can be achieved. Anyone have another method for repairing deep scratch's?

Suggest/criticize as necessary... Please.
Feed back please

A4 1.8tqm
08-23-2009, 03:09 PM
:bump:

Rsurfer
08-23-2009, 03:59 PM
My question is, do you use the clear coat pen after everything is sanded and polished? Would you not have a ridge? Or do you polish the cc after it's dried? I've repaired a scratch before, but shot 3 coats of clear out of a rattle can and then wetsanded with 3000 and then polished it out.

A4 1.8tqm
08-23-2009, 05:55 PM
I planned on dong the same with the CC as with the color, no ridge, but I've got the color in the scratch nearly level along the whole thing. So now if i put clear on with the pen, yes, there will be a ridge. You do a write up on that scratch repair? Rattle can sounds like the right idea, how to advice? Is there a specific CC brand/type you can recommend for me? I've got a great vehicle to practice on first :D.
:thankyousign:

Rsurfer
08-23-2009, 06:44 PM
I use Dupli-Color Clear. There are 2 types of clear, one for earlier models and one for later models. I don't remember the years. I applied 2 tack coats 10 mins. apart and one final med coat. Be sure to tape and cover the surrounding area. I only taped the immediate area and got overspray on my glass, pillars and rear quarter panel which I had to clay and re-seal.

A4 1.8tqm
08-23-2009, 07:13 PM
I'll be sure to protect from over spray. How large an area around the scratch should be sprayed? Not the whole panel? If you only sprayed part of a panel did it come out looking even? I assumed I have to spray the whole thing. Sorry for all the Q's.

:thankyousign: again

Rsurfer
08-23-2009, 07:34 PM
Let's say the scratch is 3" long. I taped an inch longer on both sides and 1.5" above and 1.5' below scratch. This gave me some room to use a sanding block. Sprayed the area with cc, removed the tape, hit it with 2000 and then 3000 to blend in and polished out.

A4 1.8tqm
08-23-2009, 07:40 PM
Alright! I'll post pics when I get her done... and worthy of some of my beloved Fuzion! (or Souveran)! :xyxthumbs:

eddie6th
08-24-2009, 09:10 PM
I use Dupli-Color Clear. There are 2 types of clear, one for earlier models and one for later models. I don't remember the years. I applied 2 tack coats 10 mins. apart and one final med coat. Be sure to tape and cover the surrounding area. I only taped the immediate area and got overspray on my glass, pillars and rear quarter panel which I had to clay and re-seal.

I use the same clear...works very well. I've been using a hobby airbrush kit for touchups. The problem is getting a good color match.

InTheBuff
08-30-2009, 07:08 PM
Originally Posted by A4 1.8tqm
Materials: Factory touch-up paint and clear coat pens (felt tip type)

Where are you fellas getting the "paint pens" with the factory color in them? My dealer only carries the little nail polish bottles.