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BMW 3-Series (E90 E92) Forum
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Are these scratches somewhat repairable?
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08-15-2011, 03:01 PM | #1 |
Second Lieutenant
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Rep 215
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There are a couple of scratches on my car that are barely noticeable but I'd like to fix them myself if possible. Is there anything I can do at home (touch-ups) that might make these a little less noticeable?
![]() Would buffing this scratch help? It is noticeable when going over it with a nail. ![]() This is visible from the side. ![]() and the worst one on the hood ![]() Any advise is appreciated. |
08-16-2011, 04:56 AM | #3 |
Captain
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Rep 770
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Deep Scratches
A surface scratch that will `catch' your fingernail is approximately 0.04 Mil (1.0 µ) deep will usually require wet-sanding (you should sand the scratch to bare metal because the device that caused this scratch was probably used with enough pressure to damage both the paint and the primer) and the clear coat refinishing Removing a scratch requires removing the layer of paint that contains the defect; you need to level the paint to the lowest point of the scratch. Removing more that 0.5 mil (12µ) of clear coat will cause premature paint film failure as UV protection percolates to the top of the clear coat. Check paint film thickness with a Paint Thickness Meter (PTG) before you attempt to remove As you go over a deep scratch, the abrasives round off the edges of the high spots of the scratch. The result is a shallower scratch (when no full correction can be made) rounded edges don’t reflect light the same way a sharp edge will and is therefore less noticeable. It may be necessary to carry out some localized wet sanding to facilitate full removal of any deep scratches, once again, paint thickness must be checked, and if the paint is too thin wet sanding is NOT an option. Once you have levelled the scratch apply paint in ‘layers’, by applying a coat of paint and then allowing it to dry, apply paint, and etc. Apply paint until it’s higher than the surrounding surface and then polish level. Note: metallic paint is very difficult to match as the flakes won’t ‘lay down’ like OEM applied paint. |
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08-16-2011, 05:06 AM | #4 |
Black Guy
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the first pic it looks like you might be able to buff it out but the other two your out of luck
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