Re: Headlight Lens Trouble
Hey John,
Cyclone had a good remedy for the headlight hazing problem! A good high speed buffing will clear them up fairly well! The only thing I might add to that would be to maybe pick up some Wet/Dry Sand Paper to ultimately smooth out the surface! Unless the Headlight rubber seal is broken, the damage should be confined to the outside only! My best guess is that the kit was meant for lighter damage, or defect correction than you had, and was not aggressive enough to repair the surface deep enough to completely fix the problem! My question would be, are you applying the polish by hand, or by buffer? For this type of project, a DA Sander, or buffer will produce better results I know you have already gone through much of this process, but just for reference, here is a good description of what I used to do in order to perform headlight restoration.
Depending on how cloudy, or damaged they are, I would start out by grabbing a bucket of water, and some 800 - 1000 grit Wet/Dry Sand Paper. You can either sand the surface by hand, or for better results, I would recommend a rubber sanding block as it is a bit easier on the hands, but either way is fine!
Simply dip the sandpaper into the water, and sand the entire headlight till it is completely dull, and you can no longer see the damage. Keep a small bottle of water handy, and occasionally pour some water over the headlight to see how much damage you still have, and keep on sanding till all damage is gone, and you have a clean, uniformly smooth surface!
Next, I would recommend going back over it again using 1500 grit Wet/Dry Sandpaper, and then a quick once over using 2000 grit. Each will produce a more refined surface, and ensure a perfectly smooth surface with no visible damage of any kind!
Always make sure you sandpaper is wet, and keep dipping it in the water to keep it lubricated while you sand. Once you are done with sanding you should have a semi flat, smooth as glass but hazy looking headlight! Don't panic, this is the way it is supposed to look, and in the next step we will bring it back, I promise!
Now is where you bring in your buffer, and a bit of compound. I always recommend that you use as mild of a compound as possible, at least as a starting point to try to avoid damage to your paint! If you have followed the steps above, all that you should need to bring it back to a good clarity would be either some Meguiar's Scratch-X, or a good light duty compound. Many DA Sanders operate at a speed of around 1000 -1200 RPM. That speed is optimum to achieve excellent clarity with minimal possibility of damaging any surrounding areas! And higher speed, or more aggressive compound, and you stand a good chance at marring, or burning the paint around the headlight assembly! After you have finished Buffing, take a clean Microfiber rag, and wipe off any excess material, and inspect your restored headlight! If you see any hae, you may need to do one more pass with the buffer!
After your headlight is restored, I would recommend applying a small amount of Glaze, otherwise known as Polishing Compound, and apply it to the headlight as well! This can be done by your high speed buffer, an Orbital Buffer, or by hand! I would recommend either 3M Imperial Hand Glaze, 3M Finesse it 2, or Meguiar's Show Car Glaze for this application! They all work great, and provide great results!
Finally apply a good wax to your newly restored headlight, and you are done!
I know it seems like a little bit more work than simply running the buffer over the light, but if you do not sand the surface down to correct any defects, they will still be visible to some extent, and within a couple of months will start to look like it did when you started, and will need another application to hide the damage once again!
At any rate, that is the most thorough method I have used to fix this type of problem when I had my shop, and has always worked very well! I wish you the best of luck on restoring your headlights, and if you have any more questions, I am here anytime!
Candyman
Last edited by Candyman; 30 Jul 2008 at 03:24 am.
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