BERGS2 Posted March 21, 2023 Report Share Posted March 21, 2023 So i finally used a kit that i've had for a few year on the front lamps to get rid of that nasty yellowing. Looked all good for a few weeks then this seems to have happened? Some kinda reaction with the treatment chemical? It was a very old kit (c.3 years maybe) but i dont recall seeing a best before or similar on it https://imgur.com/a/AXghgKV any ideas? Quote Link to comment Share on other sites More sharing options...
red rocket Posted March 21, 2023 Report Share Posted March 21, 2023 43 minutes ago, BERGS2 said: So i finally used a kit that i've had for a few year on the front lamps to get rid of that nasty yellowing. Looked all good for a few weeks then this seems to have happened? Some kinda reaction with the treatment chemical? It was a very old kit (c.3 years maybe) but i dont recall seeing a best before or similar on it https://imgur.com/a/AXghgKV any ideas? Quote Link to comment Share on other sites More sharing options...
½cwt Posted March 21, 2023 Report Share Posted March 21, 2023 Which kit did you use? I did mine with the Auto Glym kit that does not come with a sealant so I use an Armoral UV wipes and they ended up spotting like this too in just a couple of days, even though I made sure the lenses were really clean when applied. Quote Link to comment Share on other sites More sharing options...
phazed Posted March 22, 2023 Report Share Posted March 22, 2023 Interesting. I have a 2005 S project car which has yellowing lights. What do people recommend? Quote Link to comment Share on other sites More sharing options...
BBB Posted March 22, 2023 Report Share Posted March 22, 2023 I’ve tried a few kits now and none of them have stopped the yellowing coming back within a few months. So I've just bought this kit after a recommendation from someone on here, but haven’t used it yet. I’m hoping the ceramic part will give better protection. I now also have lots of abrasives and polishes but would really like it if someone just sold good quality UV protection wipes. https://www.cerakote.co.uk/shop/equipment/cerakote-ceramic-headlight-restoration-kit/cerakote-ceramic-headlight-restoration-kit/ 1 Quote Link to comment Share on other sites More sharing options...
phazed Posted March 22, 2023 Report Share Posted March 22, 2023 Will look into that, thanks. Quote Link to comment Share on other sites More sharing options...
edc Posted March 22, 2023 Report Share Posted March 22, 2023 The UV exposure will always yellow the light again unless you coat or protect it. Some clearcoat others use a good wax or ceramic coat and reapply as needed. 1 Quote Link to comment Share on other sites More sharing options...
Mattman42 Posted March 22, 2023 Report Share Posted March 22, 2023 I used the T-Cut headlight restoration kit which comes with a liquid protectant to put on after polishing. Very easy to do and the potential for screwing it up not as great as wet sanding - i take my hat off to anyone brave enough to do that Quote Link to comment Share on other sites More sharing options...
Takahashi Posted March 23, 2023 Report Share Posted March 23, 2023 its UV that does it, you need a UV protectant on it after polishing. Quote Link to comment Share on other sites More sharing options...
Freeman Posted March 23, 2023 Report Share Posted March 23, 2023 On 3/22/2023 at 10:02 AM, phazed said: Interesting. I have a 2005 S project car which has yellowing lights. What do people recommend? I have considered to do it myself, then I turned lazy so took it to someone I know who owns a classic cars body shop. They removed the lights, polished, coated and placed in the oven for (I think) 1h. The cost was £40 per light, 5 years on and they still look as new. Sometimes it's not worth to save on the pennies. 1 Quote Link to comment Share on other sites More sharing options...
McDonald Posted March 23, 2023 Report Share Posted March 23, 2023 55 minutes ago, Freeman said: I have considered to do it myself, then I turned lazy so took it to someone I know who owns a classic cars body shop. They removed the lights, polished, coated and placed in the oven for (I think) 1h. The cost was £40 per light, 5 years on and they still look as new. Sometimes it's not worth to save on the pennies. I paid £80 per light last year. The lights still look fab. Well worth the money IMO. Quote Link to comment Share on other sites More sharing options...
BERGS2 Posted April 3, 2023 Author Report Share Posted April 3, 2023 On 3/21/2023 at 11:18 AM, ½cwt said: Which kit did you use? I did mine with the Auto Glym kit that does not come with a sealant so I use an Armoral UV wipes and they ended up spotting like this too in just a couple of days, even though I made sure the lenses were really clean when applied. it was a super old one - I only have the sealant left so did the wet & dry and compound 'on the fly' and finished with the orbital polisher https://www.amazon.co.uk/Headlight-Restoration-Brightener-Polishing-Refurbish/dp/B0BTYT5KG1/ref=sr_1_5?crid=18ZYK8UHQENQ1&keywords=headlamp+polishing+kit&qid=1680547376&sprefix=headlamp+po%2Caps%2C78&sr=8-5 might just try to do them again but get a 'decent' sealant that one went on like airfix glue!! 😂 Quote Link to comment Share on other sites More sharing options...
phazed Posted April 4, 2023 Report Share Posted April 4, 2023 On 3/22/2023 at 10:02 AM, phazed said: Interesting. I have a 2005 S project car which has yellowing lights. What do people recommend? While I was doing the paint work, with my dual action, polisher, I thought I would try a mild compound which I used on the paintwork on the headlights. The headlights weren’t as bad as some that were definitely dull and slightly discoloured. This worked a treat and I finished off by polishing them with a good quality which is when I did the paint work on the car. I assume this will last and is a free fix, (for me as I have the product already which is cheap). One day, I will learn to upload images! Quote Link to comment Share on other sites More sharing options...
½cwt Posted April 4, 2023 Report Share Posted April 4, 2023 2 hours ago, phazed said: While I was doing the paint work, with my dual action, polisher, I thought I would try a mild compound which I used on the paintwork on the headlights. The headlights weren’t as bad as some that were definitely dull and slightly discoloured. This worked a treat and I finished off by polishing them with a good quality which is when I did the paint work on the car. I assume this will last and is a free fix, (for me as I have the product already which is cheap). One day, I will learn to upload images! They will need some form of UV protective coating or they start going yellow again in a couple of years. Ask me how I know.... Quote Link to comment Share on other sites More sharing options...
BERGS2 Posted April 4, 2023 Author Report Share Posted April 4, 2023 do you know what this could be - as in just the product? Quote Link to comment Share on other sites More sharing options...
BBB Posted April 9, 2023 Report Share Posted April 9, 2023 On 3/22/2023 at 10:42 AM, BBB said: I’ve tried a few kits now and none of them have stopped the yellowing coming back within a few months. So I've just bought this kit after a recommendation from someone on here, but haven’t used it yet. I’m hoping the ceramic part will give better protection. I now also have lots of abrasives and polishes but would really like it if someone just sold good quality UV protection wipes. https://www.cerakote.co.uk/shop/equipment/cerakote-ceramic-headlight-restoration-kit/cerakote-ceramic-headlight-restoration-kit/ As a follow up to this as I’ve used it now. The first step was something I’ve not seen in other kits: 4 wipes per headlight that remove the yellowing before you do anything else. Each wipe turned yellow so they were definitely doing something. Then 2 stages of wet sanding: 1000 grit and 2000 grit circular pads, followed with a ceramic coating from a set of wipes. The headlights look really clear so now it’s just a waiting game to see how long the UV protection works for. Quote Link to comment Share on other sites More sharing options...
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