Amazing transformation of old headlights
The kit comprises :
6x 500 grit (medium) dry velcro held sanding disks
4x 800 grit (fine) dry velcro held sanding disks
1x 3000 grit (very fine) dry velcro held sanding disks
1x extremely fine polishing velcro held sponge for use with polishing paste
1x Polishing paste
1x Velcro disk holding tool for use in a variable speed drill.
1x Reel high quality masking tape
1x Instructions
I had two front head lights of a MkV 2005 Vauxhall Astra. They were yellowed and patchy, It looked like some kind of clear coating was deteriorating on the headlights and with an MOT due soon I was wondering if they would pass. See the before and after images attached.
Its essential to use the tape to protect your body work. Plenty of tape is supplied so don't skimp on protection. Lucky, with an Astra, you can protect the bonnet paintwork by opening it up. Wash the lights well with water & fairy liquid first and dry with kitchen roll.
You have to start with the 500 grit. Don't be tempted to rush and use high speed on the drill, or press down too hard, as I thought this could cause hot spots and perhaps melt the headlight plastic and this would be disastrous. If the plastic is getting hot then stop, wait for it to cool and use a lower speed.
I found it difficult to gauge progress as the old yellowed layer could only be seen as faint patches. I concentrated on these until they disappeared but didn't go overboard on it. I used up one 500 grit disk on each headlight.
I washed the headlights. Although clear when wet, as they dried, they went dull with a uniform milky appearance. Obviously in that state that would be a certain MOT failure so I had to go on now!
Then I went down to the 800 grit and I could see the dullness changing to a relatively clearish appearance. Some yellow patches were still apparent and I had to go back and repeat those bits with the 500 grit. At this point the headlights were almost clear after a wash and dry. Again I used one 800 grit disk per headlight.
Then I used the 3000 grit disk. The headlights gradually became clearer and clearer but did not look anything like the clearness of a new headlight. I thought ah well at least it is much much better than the yellow dull things that they were. I found that one 3000 grit disk was not enough as it began to fall into pieces during work on the second headlight and I worried it might do some damage, so I had to stop. That was annoying since I had used so few of the other coarser disks. After the 3000 disk the headlights looked fairly clearish but you still could tell they were oldish.
Lastly I used the polishing sponge with the rubbing (polishing paste) compound. This was very satisying. The lights just kept getting clearer and clearer until eventually they actually looked brand new! (See images attached). This last stage was an amazing transformation as up to then I was getting worried.
I'm very pleased with the results. Even If it only lasts a year or two I could just polish a bit more.
The one bugbear only one 3000 grit disk is provided. At least 2 is needed per headlight then I would have given it 5 stars
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