addysdaddy
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- Jun 13, 2012
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:goodjob2:
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I still think these should be legal in the USA, rig them to go off with your car alarm, or when a metal object (like a key, or screwdriver) makes contact.
Awesome repair, photography and documentation.
I'm going to edit your first post and give this a title with a blue clickable link to make it easier for everyone to share on our forum every time someone asks how to fix a deep key scratch.
:dblthumb2:
Hey Mike, I want to throw a question at you. Whats your take on filling these deep scratches with paint and using unigrit sand papers and compounding on bumpers?
You think sand papers (and above mentioned procedure) would work on bumpers for deep scratches? I asked because I have a hunch that paint filling and correction is different for bumpers compared to the rest. Feed back please
Thanks
Often times, paint on urethane bumpers will have flex agent added to it to prevent it from cracking. It makes the paint softer and more prone to scratches as well as creeping from too much heat from buffing it. If I could find out the exact paint used on a certain bumper, I would use that with the fill, sand and compound method. If I could not get that exact paint, I would just go for touch up paint that is the right color and use the same method and hope for the best, as in hoping it doesn't crack.Anyone???
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New guy here! I am still trying to learn the paint theory, etc. Something I have always wondered is... in a situation like this, do I understand it right that when you sanded, you were taking the touch up paint down to the level of the clear coat, not the actual paint? Because if you took it down level with the actual paint, that would mean your clear coat is gone? I guess I just always had a problem figuring out how clear-coat was replaced when paint repairing paint that was damaged past the clear coat.
When you sand the touch up paint, you sand it to match the same level as the overall paint surface, ie the top of the clear coat, or the top of the paint period, if the paint is single stage, ie non clear coat paint.
The best touch up comes from sanding the chip before you apply touch up, to feather edge the chip, to make a gradual transition from the chipped area to the surrounding paint. This reduces any hard line around the border of the repair and the surrounding area. The touch up is less noticeable that way. If you wanted to attempt perfection, you would feather edge, then fill with any color needed, then sand that perfectly flat to match the level of the color coat, then fill with clear, and then sand and polish that to match the level of the clear.
When you sand the touch up paint, you sand it to match the same level as the overall paint surface, ie the top of the clear coat, or the top of the paint period, if the paint is single stage, ie non clear coat paint.
The best touch up comes from sanding the chip before you apply touch up, to feather edge the chip, to make a gradual transition from the chipped area to the surrounding paint. This reduces any hard line around the border of the repair and the surrounding area. The touch up is less noticeable that way. If you wanted to attempt perfection, you would feather edge, then fill with any color needed, then sand that perfectly flat to match the level of the color coat, then fill with clear, and then sand and polish that to match the level of the clear.
1500 is what I would probably go with, but might start with 2000 to see how it works. I agree with masking off the surrounding area. I have recommended that approach before.Based on the current damage of the PO what grit do you recommend feathering the scratch with?
1500 is what I would probably go with, but might start with 2000 to see how it works. I agree with masking off the surrounding area. I have recommended that approach before.
Always start with the finest that could work, then up the coarseness as needed. If for some reason paint was very hard and it was a large area, I would try 1200 after 1500, and then 1000 after that, and no coarser. However, 1200 is the coarsest I have ever needed on paint. Primer would call for coarser, though.
Use the end of broken Popsicle stick to fold the paper around. Get creative with it. Use what is available. Perhaps around an eraser.great thanks! also when you say "feather" the scratches, how would one go about feathering something that small and thin?
also i assume by sand, you mean wet sand