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26th July 2019, 23:57 | #71 |
I really should get out more.......
ZT CDTi 135, ZT260SE Join Date: Feb 2011
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Its all about the UV.
I had perfect headlights one year, 4 weeks in the Balkans with sun every day, they clouded up faster than the dole queue forms in Easterhouse Post office. |
27th July 2019, 08:41 | #72 | |
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75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010
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Quote:
That was a potential solution I suggested long ago, but with no real idea what the clear lacquer might do to the polycarbonate lenses - and not willing to risk my lenses. I think it calls for some experiment. May I suggest if someone has an old headlamp lens, polish it up to a good clear finish, then spray half of it with clear lacquer, then just leave it outside in the sun and weather for a few weeks. I don't have a lens to carry out such an experiment with, but if someone might care to supply me with one - I have what is needed to polish it up, the lacquer and plenty of space outside to leave it undisturbed.
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Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money. |
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27th July 2019, 11:58 | #73 | |
I really should get out more.......
ZT CDTi 135, ZT260SE Join Date: Feb 2011
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Omg...! Clear lacquer is what protects them from the factory. I cant repeat this again! With no clear lacquer you are left with soft, exposed, polycarbonate which is so soft you can simply brush it with your fingernail and it scratches. How many times do I need to say it!! No experimentation is required, it is THE only way to restore them to factory fresh. https://www.amazon.co.uk/SPRAY-MAX-H.../dp/B01NA9K7N6 You need a 2K Clear UV resistant spray, ideally with a primer as detailed in the German Spray max kit. Most body shops will use normal 2k Clear lacquer, which has UV resistance anyway of course. |
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27th July 2019, 12:04 | #74 | |
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https://www.ebay.co.uk/itm/SPRAY-MAX...4AAOSw-s5dOHDF is this kit all that is needed once polished? macafee2 |
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27th July 2019, 12:05 | #75 |
I really should get out more.......
ZT CDTi 135, ZT260SE Join Date: Feb 2011
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https://www.youtube.com/watch?v=iMw_jtD5OMo
https://www.youtube.com/watch?v=0msGcb1Mbjg THe only thing I would say is buy two kits, and practice on rubbish halogen headlights out of a scrappy. Once you become a SprayMax Spraymaster, you are good to go. Also its better if you dont live in Scotland and spray at 4DegC, better results of course when warmer. The beauty of a nice layer of clear, is no matter what you ***k up on it, you can polish back to a glass smooth finish. Even the factory finish if you looked carefully has very slight undulation/faint orange peel, it was hard to spot, but it was there. The only other alternative is to take them to a body shop, and be relieved of about £200 for the job. Considering you cant buy new Xenons, you could argue whether it is worth it or not. Last edited by T16; 27th July 2019 at 12:09.. |
27th July 2019, 16:30 | #76 | |
This is my second home
75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010
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Quote:
Thanks, but I am seeing lots of complaints of damage due to trying various ways to protect them, including using lacquer, even lacquer supposedly safe on polycarbonate. So I'm looking to do a bit of research of my own.
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Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money. |
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30th July 2019, 21:14 | #77 |
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There must be something wrong, you should not be able to scratch polycarbonate with your fingernail! 6mm Polycarbonate is bulletproof that's why they make riot shields out of it?!?
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Lest we forget..
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30th July 2019, 21:24 | #78 | |
I really should get out more.......
ZT CDTi 135, ZT260SE Join Date: Feb 2011
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Quote:
On you go though. |
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1st August 2019, 14:22 | #79 | |
This is my second home
75 Contemporary SE Mk II 2004 Man. Sal. CDTi 135ps, FBH on red diesel, WinCE6 DD Join Date: May 2010
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Quote:
Dave (Stocktake) kindly dropped off a MKI headlight lens only, in terrible condition for me to play about with. Nice car BTW Dave was it a MKIIIS (Overdrive and gear stick on the tunnel)? If so one of only 40 made. Attempt 1.. I wet sanded one of the lenses light, enough to to get it to a clear result, fine polished it, then sprayed it up with some clear lacquer I already had in stock. It immediately went opaque and showed several cracks in the lacquer. So I left it to harden up outside and see if it improved any which it didn't. Attempt 2.. I attacked it again, this time with 100 grit, gradually swapping to 2000, then polished it up with T-Cut, then sprayed it again. This time it ended up clear, but with just two small areas of the lacquer appearing to 'crack'. My theory is that in Attempt 1, I hadn't sanded off all of the original lacquer coating, or there was still something incompatible on the lens which reacted with my lacquer. Attempt 2 was much a much more thorough sanding down. I would suggest avoiding the use of a drill entirely for the sanding down stage at least - they tend to leave difficult to remove deep swirls. I was aiming for a perfect finish, just good enough for the purposes of a test of the lacquer finish and whether it might be compatible with the polycarbonate and last long enough to be worth while. It just now a matter of testing the 'last long enough'. It is outside in full sun..
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Harry How To's and items I offer for free, or just to cover the cost of my expenses... http://www.the75andztclub.co.uk/foru...40#post1764540 Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing. I've taken a vow of poverty. To annoy me, send money. |
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1st August 2019, 14:27 | #80 |
I really should get out more.......
ZT CDTi 135, ZT260SE Join Date: Feb 2011
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Why would anyone waste their time when the German Spraymax kit has been proven to work with no issues for a reasonable cost, and designed specifically for the job.
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