You will need an awful large air tank to run air tools.
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Probably a dumb question, but I've never restored headlights nor have I used urethane, but I'm just wondering why is it necessary to mix the urethane with the mineral spirits? To thin it out?
Remember no question is a dumb question.
I am still learning myself but from my understanding the the mineral spirits does help "thin it out" while applying to the headlights without streaking. When it is very hot out, or windy you may need to increase the ratio of mineral spirits in your mix. You can get away with increasing the Spar ratio if you are in a controlled environment or it is cooler outside.
I can't say from experience, just what I have read here (assuming I have a good understanding)
I know this is a very long thread, but if you make the time to read 5-10+ pages per day you will knock it out in no time.
Reading all of the pages has given me a good idea of what will, and what won't work.
This was the post I was referring to about streaking, where the lights came out great, but a few months later the streaking appeared.
Jeff did you chalk that up to not applying a thick enough coating, or not curing with the actual UV light?
Are you still using Glasweld Gclear with the UV light these days or have you moved on to another product/method?
I was wondering if someone brought their car to a car wash (or did it themselves) that used a chemical to clean the lights could that be the cause of streaks months later? I want to give warranty, but if that is the case how would you be able to tell the difference between your work failing, and someone "dissolving" it?
I included this more recent post just to get your opinion as well USMCPAB on my question/theory.
[QUOTE=headlightnewbie;1290183
I included this more recent post just to get your opinion as well USMCPAB on my question/theory.[/QUOTE]
Oh wow I've never seen anything like that before. I've used gclear on numerous vehicles and I've yet to see any type of degradation on some of my maintenance customers. I have repeat customers who've had theirs for over a year and still going strong. But there's always those special cases where you do everything correctly and somehow it just doesn't work. This might be on of those cases. However, what does come to mind is a couple of things, not allowed to cure long enough in a UV curing light, gclear was applied too thin, not sanded down well enough, or not a proper ipa wipe down before the gclear application, or the environment when it was applied, like humidity or moisture in the air due to temperature or rainfall.
Thanks for that insight usmcpab. I think that's probably the case. I'm one of those perfectionists though, so it irks me not to know EVERYTHING! :hungry:
Yeah, the problem is nailing down which of those variables has caused the undesirable results. :)
Has anyone ever tried using meguiars plast x with just a hand held buffing pad buff it off with a microfiber towel and then use the Spar Urethane. I'm wondering if I tried that how it would come out. I used the Spar method on my wife 2006 Nissan Altima and it came out better but it was still a little foggy. And I'm just wondering if that might help clear some of that fog up.
I know everyone has their own preferences but what are your thoughts on highest level of sanding?
2000 , wipe, apply gclear
2500, wipe, apply gclear
3000, wipe, apply gclear
I didn't include buffing/polishing to leave a bit of "tooth".
If I were using Spar I would go up to 3000