i used to be a plastX believer, and i thought the results i was getting were good. but my headlights were never truely clear. they always still had a haze to them even after going at with plastX over and over and over. ill try to be as objective as possible, but plastX to me, is pretty much useless, and what im going to show, is evidence to support my reasoning. this is a 2000 civic ex. Its a detail i just got done with. the car is sitting in my garage right now ready to be picked up tomorrow.
before. obviously the headlights are yellowed with haze
this is the first product i used. XMT3 on a medium cut orange pad via a UDM
before
50/50
i worked the polish in at 4.5-5k rpms until the polish had broken down
here it is once again for reference
plastX on a foam applicator.
after plastX. obviously it removed some of the yellow haze, but the headlight wasnt crystal clear.
so here it is. the leftside is plastX, you can see where the tape was, thats the remaining haze, and on the right is where i polished it.
here it is all done. this was the results of a single pass of XMT3 on orange, and a single pass of XMT1 on orange. XMT1 is just a finer polish, that takes longer to break down, and results in essentially being able to remove more haze before it breaks down, however it has less cut then XMT3 which is why i started with a heavier cut, and worked my way down.
side by side.
the car itself recieved a single pass of meguiars 83 cleaner polish (which has a similar cut to XMT3) and was sealed with megs 21 synthetic sealant. the whole polishing process took about 6-7 hours.
PlastX as an over the counter product is good, but there are alternatives that yield much better results. Wetsanding is the best option to fix headlights. wetsanding removes the pitting scratches, which is something that the polishes i used and plastx cannot do.
if you are to wetsand your headlights, this is the process i would use.
2 passes 1000 grit (depending on how bad your headlights are with pitting and scratches. if your not comfortable using 1000 then dont)
if they arent terrible, start with 2000 grit sandpaper then work your way to 2500. after that youll need something of a similar cut to the XMT3 that i used. the best way to do this is with a random orbital polisher. its impossible to yield these results by hand.
if machine polishing isnt your thing, and you dont want to spend that kind of money for just your headlights there really isnt anything wrong with plastX. it does what it says it does... but there are other options.