Bulb's ,lens fog & t-cut

[Roverv8]

Another job done
I won't gone on about the head lights ,yes foggy, yes yellow- no see in dark
Removed yellow and most fog with t- cut with a 6inch sponge pad from tool station
fitted on a drill but still rubbish on the road at night.
Well today some magic really did happen i removed both lights noted that the head light bulbs although retained in the
Housing with that metal wire clip were not seated correctly sorted that out
put lights back in car and given the twice over with tool station plastic cleaner
Just been on the test drive lottery and I have seen the light
Working on the good side of alrighty then
Cost about £7
Had the t-cut in

[s12vea]

Someone at dingday was using brasso.

It worked bloody well, I'm sure someone will confirm who and how it was used.

[lamcote]

Just tried to polish up the lights with T Cut. Did an OK job but still left a slightly yellowish tint. Then tried Brasso, just using a paper towel and they have come up brilliantly. Just as good as the Meguiars kit I bought a few years ago (that I can't find anymore).

[Topdownman]

I think most polishes will get rid of the yellow hazing, the problem is stopping them just going the same way straightaway.

I tried the 2 part tcut headlight kit and their polish worked fine but the sealant didnt work for me at all.

I have not tried the megiuars kit yet but will do at some stage as that has some good reviews.

[s12vea]

I sealed mine with polish seems to have stopped the yellowing so far.

[lamcote]

It only took 2 minutes with the Brasso and they came up perfectly so I don't mind doing that every few weeks if necessary. It will be interesting to see how long it takes for the fog to return....

[normanh]

Been doing the same here for years but the lenses fog/yellow quickly in maybe a week or two due to uV in sunlight, the lenses simply oxidised each time, have tried sealants and polishes but it still happens, I dont think you can stop it once its bite into the plastic.

Norman

[Roverv8]

Just watched a guy on YouTube mixed polyurethane  varnish with mineral solvent and wiped it on with a paper wipe  
He says it last 2 years    may be worth visiting a scrapers to get a foggy light to experiment on but for now
Got front and rear pads to do this weekend

[normanh]

The trouble with PU's is there are two basic types - one will yellow for sure and one wont. If your using a varnish you must make sure its one using a aliphatic di-isocyanate, which are the only type that are uv stable, aromatic di-isocyanates will yellow as fast as our headlights can untreated. Often wondered whether a car lacquer would work, maybe one day I'll test an edge and see if the lense will take the solvent in a light coat.

Norman

[m1tch]

I think I saw a video of leethesparky going at his lights with a basic mouse sander and carried on until the dust was white rather than yellow and then simply put UV stable clear coat over them - looks to be a good job.