Author Topic: CAR Headlight De-Fogging  (Read 1083 times)

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Offline Accolay

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CAR Headlight De-Fogging
« on: July 19, 2012, 02:53:58 AM »
I accidentally found that wiping a bit of MEK across plastic foggy headlight lenses seems to clear them up quite well. Just be careful that you don't try it another time immediately afterwards because the solvent has done its job and if you wipe them again it'll be like wiping across drying paint.

It seems to clear them up really well, and for me, a cheaper and quicker solution than buying one of those kits. No idea how long it will last before they get foggy again, but I'm satisfied for now. Of course, the clear coat on my '96 Civic is peeling off, so I don't really care about the paint. If you try this, you might want to tape off your car first.
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Offline flybox1

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Re: CAR Headlight De-Fogging
« Reply #1 on: July 19, 2012, 01:03:24 PM »
I accidentally found that wiping a bit of MEK across plastic foggy headlight lenses seems to clear them up quite well. Just be careful that you don't try it another time immediately afterwards because the solvent has done its job and if you wipe them again it'll be like wiping across drying paint.

It seems to clear them up really well, and for me, a cheaper and quicker solution than buying one of those kits. No idea how long it will last before they get foggy again, but I'm satisfied for now. Of course, the clear coat on my '96 Civic is peeling off, so I don't really care about the paint. If you try this, you might want to tape off your car first.
Good to know.

I originally bought one of those 3M rotory tool headlight treatment kits, just for the sponge/foam pad to use as polish/swirl remover applicator for my tank and side cover paint i had done.  turned around the next week and used the rest of the kit on the wifes car headlights.  worked well.
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Offline Spanner 1

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Re: CAR Headlight De-Fogging
« Reply #2 on: July 19, 2012, 07:00:42 PM »
Toothpaste  :o.... just give it a try with a rag and rinse -off.....  ;D... works great.
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Offline Accolay

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Re: CAR Headlight De-Fogging
« Reply #3 on: July 19, 2012, 08:26:53 PM »
That would require elbow grease  :P
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Offline wardenerd

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Re: CAR Headlight De-Fogging
« Reply #4 on: July 20, 2012, 07:58:23 AM »
i use the 999 disposable from Harbor freight.  Use the drill for 6 minutes instead of 3 for best results.

Offline Raul CB750K1

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Re: CAR Headlight De-Fogging
« Reply #5 on: July 25, 2012, 04:32:56 AM »
Just a FYI, don't know whether it is true, but I head that the reason for the car headlights to get dull with time is for using low-quality -read "chinese"- bulbs. It seems that the good ones has some kind of filter in the glass to prevent UV being projected.

Offline Duanob

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Re: CAR Headlight De-Fogging
« Reply #6 on: July 25, 2012, 08:17:59 AM »
Funny right after I painted my tank and buffed it out I took the DA buffer and the anti-swirl compound and tried it on my wife's Honda Civic HL lenses. They are notorious for headlight lens gloom. It worked great. I also have some 3m Imperial compound that worked like a charm on my boat's chalky gel coat I might try that next.

"the reason for the car headlights to get dull with time is for using low-quality -read "chinese"- bulbs"

I kind of doubt it because the crud is on the outside of the lens, the bulb is on the inside.
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Offline Raul CB750K1

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Re: CAR Headlight De-Fogging
« Reply #7 on: July 25, 2012, 09:28:55 AM »
I kind of doubt it because the crud is on the outside of the lens, the bulb is on the inside.

As I said, it is just something I heard and maybe it is just BS, but as we are talking reactions to some kind of radiation, it wouldn't mind much whether it is on the inside or the outside where the sensitive material is.

You probably have noticed that, wherever you use fluorescent light, appliances plastics -like old computer's keyboards, monitors, or kitchen appliances- turn to yellow with time. If it was a glass in between, it wouldn't make any difference....

Offline flybox1

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Re: CAR Headlight De-Fogging
« Reply #8 on: July 25, 2012, 09:52:41 AM »
Toothpaste  :o.... just give it a try with a rag and rinse -off.....  ;D... works great.

when car headlights are like this gals teeth :o you need a little more than toothpaste and a wet rinse. 8)
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
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"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"