How to remove scratches on windshields
It got scratched real bad. I pressure washed the coating off and that took about half the scratches off. I have been going to try buffing out the scratches so got in the mood.
I took some 400 wet dry and sanded it first, then some 1000, then used just regular Turtle wax rubbing compound then polishing compound.
will try to take a better photo, but it is much better, this took about an hour, think I will take the windshield out of the stainless frame and do some more sanding, and then polish it again.
Well time to report back, (reminder windshield slid two hundred feet down road has deep scratches)
I took the windshield apart, sanded the real bad scratches on the outside with 220 wet, then 400 , 1500 then rubbed it out with rubbing compound then used polish compound. This was with an electric buffer.
Then had a few scratches on the inside, did the same thing where it needed it.
Remember that the outside had the film, coating removed several month ago with a pressure washer.
Well when I was done put the shield back on the bike, and in all honesty was not very pleased with the results.
Got my pressure washer out and hit the shield real good, and took off the coating on the inside.
This made all the difference, and although not perfect would give it a eight out of ten. Ten being new, nine a decent one off e-bay. Three, the way it was after the wreck.
I might take it off again and hit it with the buffer again, but going to run it the way it is.
I might buy another one as a back up one, since the frame was scratched up pretty bad also.
I polished the stainless some, and it looks better, but don’t want to spend anymore time on it.
About four hours.
Here is what I learned.
The deep scratches I could have used 100 first. The 220 never did take them all the way out, but much better. where the real deep scratches are you get some distortion when it is polished out. But you need to look close to see this.
The outside coating is very hard, and hard to polish, you can use a pretty coarse polish to get results.
For small scratches the finer plastic polish should work fine.
Using a buffer is safe.
If you go through the finish it really shows.
Gas wont touch it.
The shield is Lexan.
The lexan polishes easer than the finish. It will probably scratch easer also.
Before you buy a new shield try removing the coating.
This is the second shield I have had in twelve years, the first one I could not get the coating off.
This one is about six years old and the coating comes off real easy with a pressure cleaner. Put it about on inch away, once it starts you can move it out to three and it comes right off.
I still might try to get some clear window coating/tint.
But I am happy with the results.
Last edited by Harleycruiser; Jan 27, 2013 at 05:31 PM.
I took the windshield apart, sanded the real bad scratches on the outside with 220 wet, then 400 , 1500 then rubbed it out with rubbing compound then used polish compound. This was with an electric buffer.
Then had a few scratches on the inside, did the same thing where it needed it.
Remember that the outside had the film, coating removed several month ago with a pressure washer.
Well when I was done put the shield back on the bike, and in all honesty was not very pleased with the results.
Got my pressure washer out and hit the shield real good, and took off the coating on the inside.
This made all the difference, and although not perfect would give it a eight out of ten. Ten being new, nine a decent one off e-bay. Three, the way it was after the wreck.
I might take it off again and hit it with the buffer again, but going to run it the way it is.
I might buy another one as a back up one, since the frame was scratched up pretty bad also.
I polished the stainless some, and it looks better, but dont want to spend anymore time on it.
About four hours.
Here is what I learned.
The outside coating is very hard, and hard to polish, you can use a pretty coarse polish to get results.
For small scratches the finer plastic polish should work fine.
Using a buffer is safe.
If you go through the finish it really shows.
Gas wont touch it.
The shield is Lexan.
The lexan polishes easer than the finish. It will probably scratch easer also.
Before you buy a new shield try removing the coating.
This is the second shield I have had in twelve years, the first one I could not get the coating off.
This one is about six years old and the coating comes off real easy with a pressure cleaner. Put it about on inch away, once it starts you can move it out to three and it comes right off.
I still might try to get some clear window coating/tint.
But I am happy with the results.
I have done similar on cars, watches, and a smaller windshield before.
It takes time, but the results are worth it
Sand.

Buff.

:-)
So this what I do on all Plastic/Plexiglas, Lexan type surfaces.
I fold the paper in half then again making a pad, keeping the use paper aids in final polishing, the 600 (without flipping) becomes 800 after 15 minutes of sanding. Use it to your advantage.
First its better to start high on grit 600 and use lots of water & a teaspoon of dish soap in a spray bottle. I lot of elbow grease is your best bet, look at it as a workout for your guns!
The theory is to select the finest grit of wet sand paper that will not make matters worse, the idea is to sand evenly (a 2 to 4 times larger area) then where the scratches are, or more is better! Blending from around the outer area and slowly with increased pressure moving towards the scratched area more emphasis of course concentrating on blending in circular motions on scratched area. Remember always keep the paper & surface wet at all times!
Repeat several times, spraying area keeping wet all the time. You can also use water and the angle of the eye as to emulate a temporary clear coat moving your head up & down looking for flaws or imperfections. Always use a glean finger checking for smoothness. First you will notice frosted milky non-transparent glass, do not worry! This is what you want, you are wearing the plastic down to meet the base of the scratches. The ability to be patient, in removing the lowest depth of the scratch without causing more scratches is the art of perfection. Remember blending from the most outward point gradually making your way towards the scratched area is will always work to your advantage.
Repeat same procedure now using 1000 grit wet sand paper 4 or 5 times depending on feel & smoothness of surface. You will start seeing the transparency returning. Repeat again with 1500 wet sand paper, now you like what you see complete transparency wahoo!!! Your not quite home, now it's time for a high quality swirl remover (this is the mildest compound you can buy) I use 3M products as they offer many compounds of blends to choose from. When your finish, you have a new windshield, and a great set of guns!
B Bop
2012 FLHR (Road King) Ember Red Sunglo & Merlo
Cruise Control, ABS, Chrome Aluminum Profile Laced Spoke Tubeless Wheels, Security Package, Saddle Bag LED Lid Spoilers, and an array of accessories that enhances nostalgic appearance & blood curdling performance.
Great spirits have always encountered violent oppositions from mediocre minds.
Last edited by B Bop; Jun 6, 2017 at 01:51 PM.
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