Helmet Faceshield Scratch Fix - Kawasaki KLR 650 Forum
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post #1 of 22 Old 09-20-2012, 10:41 AM Thread Starter
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Helmet Faceshield Scratch Fix

Well, yesterday I got to work and had my helmet hanging on my handlebar while I put stuff in the Action Packer and the helmet fell off onto the pavement. Sure enough, landed right on the faceshield.

I can still see through it okay, but it's kind of annoying. Anybody know any product that's designed to "sand" scratches out of stuff like that? I would describe the damage as "scuffed," and of course it's right where I look through the shield on the right.

The cheapest visor I can find for a Bell Revolver helmet runs around $40 and I hate to spend almost half the price of the helmet itself just for a new shield. I'm willing to take a shot at fixing it if the price of the product needed to do so is reasonable compared to the cost of a new visor.

I've looked around and found techniques using everything from toothpaste to Brass-O to 1500-grit sandpaper but I'm kind of skeptical of the "how-to" sites. Right now I can still see through it and keep using it, but I'd hate to mess it up even worse.

Anybody had any experience with this? I would appreciate any opinions or experiences.



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post #2 of 22 Old 09-20-2012, 11:16 AM
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planalp

If the scratch is beyond what Plexis will polish out you are going to have to resort to mechanical means to get the scratch out. It will take some sand paper to get the scratch out. Once the scratch is out you can resort to progressively finer polishes to clean things up, but expect an optical aberration in the face shield.

Polishing with anything, be it toothpaste, Bon Ami, or a plastic polish, without removing the actual scratch or scuff will merely polish the scuff; it won't remove it.

T

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Last edited by Tom Schmitz; 09-20-2012 at 11:58 AM.
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post #3 of 22 Old 09-20-2012, 11:32 AM
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planalp-

I think you've nothing to lose by trying to fix it. Might be a good How To if you're successful!

What I've done in the past with scratches (windscreens, headlights, face shields) was to start with 1000 grit wet-or-dry, then progress to 1500, then move to rubbing/polishing compounds, ending up with something like Plexis.

As to the cost, I used stuff I had in the garage.

There are products designed to polish up headlight lenses, but they are designed to remove haze, not scratches. Not sure if they would be helpful or worth the cost vs what you can put together out of the garage.

I think there are finer grades of paper available, but you might have to go to a specialty shop to find them.

Tom

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“Neither of the two people in the room paid any attention to the way I came in, although only one of them was dead.” -Philip Marlowe

“'Why' and 'How' are words so important they cannot be too often used.” -Napoleon Bonaparte


Sting like a butterfly.

Last edited by Tom Schmitz; 09-20-2012 at 11:59 AM.
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post #4 of 22 Old 09-20-2012, 11:38 AM
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If its a clear shield you might want to try one of the scratch removers for glasses they have out on the market. They are pretty inexpensive. Good luck with it bro. Have a shield like that that annoys the heck out of me.


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post #5 of 22 Old 09-20-2012, 12:26 PM Thread Starter
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Thanks guys. I'm leaning toward Tom's sandpaper/polishes technique if I can find paper that fine around here. Hobby store, maybe?

I figured I would never get it perfect, but some waviness/aberration would probably be preferable to the scratches.



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post #6 of 22 Old 09-20-2012, 01:23 PM
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i used a kit to refinish tail light lense covers on a classic car. You start with the coarsest emry cloth then ending with the finest, think the finest cloth was 4000 or 8000 grit. Then ending with their patented (a sarcastic 'right') liquid polish. It was kind of labor intense but put heck of a mirror finish on the plastic lenses and i bet it would work great for you.
Gosh i wish i could remember what it was called. Think it was like NuvoShine or something.
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post #7 of 22 Old 09-20-2012, 01:26 PM
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I found the instructions for it on the internet on how it works, and it is called NUVOSHINE.

http://www.squadranuvolari.com/docs/...structions.pdf
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post #8 of 22 Old 09-20-2012, 03:02 PM
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Novus (available at most Harley shops) has a nice 3 step solution for you but...

If it won't wipe off, you are going to have to remove material. That makes it bad in a couple ways.

The first is that most face shields use some method of hardening the outer layer of plastic. You can remove enough material to make it clear again, but you will be in softer plastic, so it will be much more likely to scratch again with less effort.

The second problem, is optics. Manually polishing and removing material is going to turn the optically correct shield into a (in)corrective lens, because it is impossible to remove the same amount of material through to entire surface of the shield. It might not seem like much from the outside, but after looking through it for any length of time, you can almost guarantee yourself a nice headache. Imagine having to drive through an old house window with all the waves and distortions.

My recommendation, live with the scratches (I have been for better than a year on one of my shields) or replace the shield. If you're going to replace it, get one with tear-off posts, and always run a couple layers of tear-offs. That way, on the next drop, clearing the shield of scratches involves removing only a tear-off or two.
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post #9 of 22 Old 09-20-2012, 03:16 PM
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All good advice above.

I think you'll find paper up to about 1500 grit at Lowes/Home Depot/OSH/Tractor Supply and in an automotive store. There's not much call for finer grits in most refinishing applications.

If you can find a kit like basement describes with the finer grit papers you'll be better off, as going from 1500 grit to fully polished will take you through most of an NCIS marathon. That's a long time, so better hope it's a Ziva marathon rather than Kate...

Tom

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“Neither of the two people in the room paid any attention to the way I came in, although only one of them was dead.” -Philip Marlowe

“'Why' and 'How' are words so important they cannot be too often used.” -Napoleon Bonaparte


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post #10 of 22 Old 09-20-2012, 09:04 PM
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I've used Brasso before for polishing scratches out of my sons game discs, seems to work quite well! I've never tried it on a visor though...

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