Touring Models Road King, Road King Custom, Road King Classic, Road Glide, Street Glide, Electra Glide, Electra Glide Classic, and Electra Glide Ultra Classic bikes.
Sponsored by:
Sponsored by:

polycarbonate/lexan vs. acrylic windshields

Thread Tools
 
Search this Thread
 
Old Mar 1, 2010 | 04:17 PM
  #1  
407Guy's Avatar
407Guy
Thread Starter
|
Cruiser
Joined: May 2009
Posts: 228
Likes: 1
From: 407 area code
Default polycarbonate/lexan vs. acrylic windshields

Is one type of windshield REALLY better?

In the HD catalog they are using Lexan.

*shrug*

Thanks for any info.


.
 
Reply
Old Mar 1, 2010 | 04:48 PM
  #2  
Standard's Avatar
Standard
Tourer
Joined: Aug 2008
Posts: 335
Likes: 2
From: New Jersey
Default

Just my ahole opinion, but I had a recurved windshield and it was nice. I bought a Fastaire windshield dark 10" just to try it out, but I loved the damn thing so much I have never taken it off. If I ever do it will be to replace it with another one. His windshield are priced so well, I could buy a few and still be under the price of those other shields out there. I know it is just my opinion, and the material debate is yours to work through, but I, along with others will rave about Fastaire windshields and their effectiveness/appearance and function. Its is a minimal investment to see what you like.....

Ride safe
 
Reply
Old Mar 1, 2010 | 05:35 PM
  #3  
rbabos's Avatar
rbabos
Banned
Joined: Mar 2007
Posts: 3,706
Likes: 7
From: Woodstock, Ont , Can
Default

Originally Posted by 407Guy
Is one type of windshield REALLY better?

In the HD catalog they are using Lexan.

*shrug*

Thanks for any info.


.
Better depends on a couple of things. Function and safety. Plexi has better clarity, and marks can be buffed out. It will shatter on impact and could slice you up should you go through it.
Lexan is safer on impact and will usually bend out of the way. Clarity usually don't last long due it being easier to put micro swirls in it from normal cleaning.
Not that it matters much in bikes but acrylic can be heat formed to many shapes where as lexan is flat sheet that can only be forced into shape and held with restraints.
Ron
 
Reply
Old Mar 1, 2010 | 07:00 PM
  #4  
Standard's Avatar
Standard
Tourer
Joined: Aug 2008
Posts: 335
Likes: 2
From: New Jersey
Default

Man It is impossible to not be impressed and learn something here everyday. :O)
 
Reply
Old Mar 1, 2010 | 08:00 PM
  #5  
pork's Avatar
pork
Cruiser
Joined: Jun 2009
Posts: 217
Likes: 0
From: Central Texas
Default Not exactly

Originally Posted by rbabos
Clarity usually don't last long due it being easier to put micro swirls in it from normal cleaning.
Not that it matters much in bikes but acrylic can be heat formed to many shapes where as lexan is flat sheet that can only be forced into shape and held with restraints.
Ron
No, actually, Lexan (GE's trademark) is a type of polycarbonate (generic name), and it is a thermoplastic, just like acrylic (Plexiglas). Both can be heated and shaped into forms; this is the definition of a thermoplastic. I have seen Lexan successfully thermoformed, many years ago. A thermoset cannot be heated and re-shaped.

Lexan was originally developed for, and continues to be used in, applications requiring higher strength than acrylic, as well as higher abrasion resistance. So, Lexan actually is more difficult to scratch thab acrylic. Those are the two main reasons why Lexan is used in windshields.
 
Reply
Old Mar 2, 2010 | 06:41 AM
  #6  
407Guy's Avatar
407Guy
Thread Starter
|
Cruiser
Joined: May 2009
Posts: 228
Likes: 1
From: 407 area code
Default

Thanks everyone.


Anyone else have personal experiences between the two?
 
Reply
Old Mar 2, 2010 | 12:53 PM
  #7  
acchd's Avatar
acchd
Stellar HDF Member
15 Year Member
Photogenic
Liked
Loved
Joined: Apr 2008
Posts: 3,002
Likes: 86
From: Charlotte Metro
Default

Always thought this vid was cool especially the shotgun !

http://www.youtube.com/watch?v=bDXwcgSYjws
 
Reply
Old Mar 2, 2010 | 01:01 PM
  #8  
jberg's Avatar
jberg
Road Warrior
Joined: Oct 2008
Posts: 1,832
Likes: 37
From: Rockland County, NY
Default

I work with the stuff.
Lots of good information above.
Polycarbonate is safer as it is flexible and won't easily shatter.
It can be formed though some companies offer flat panels which, since they're flexible, can be curved as they're inslalled if the material is thin enough.
Some companies offer coated poly that is more scratch resistant, though this costs more.
I'd always choose poly for safety. If you're careful you can keep the fine scratches to a minimum and your shield will last years. They're not that expensive that you can't replace one every five years if it gets scratched.
I'd avoid putting acrylic on your bike. There are already enough sharp objects to snag your ***** on should you fall.
Edit: I think the video says it better than anything.
 

Last edited by jberg; Mar 2, 2010 at 01:04 PM.
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-5

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old Mar 2, 2010 | 01:07 PM
  #9  
FastFreddie1's Avatar
FastFreddie1
Stage I
Joined: Feb 2010
Posts: 1
Likes: 0
From: Seattle, Wa.
Default

Originally Posted by 407Guy
Thanks everyone.


Anyone else have personal experiences between the two?
Personally I have stayed with the Lexan from Harley and its been a great product from the get go if you know what I mean. Never have had a problem with it. Always cleans up real good and I never use anything on it othere than a Micro Soft Rag along with a spray plastic polish cleaner. Can't stand a dirty windshield so I am cleaning off buggs and crap all the time. You never see me riding my RK's wiithout the windshields in place!
 
Reply
Old Mar 2, 2010 | 02:12 PM
  #10  
Road Ranger's Avatar
Road Ranger
Road Warrior
Joined: Apr 2009
Posts: 1,757
Likes: 4
From: Northern Illinois
Default

Originally Posted by pork
No, actually, Lexan (GE's trademark) is a type of polycarbonate (generic name), and it is a thermoplastic, just like acrylic (Plexiglas). Both can be heated and shaped into forms; this is the definition of a thermoplastic. I have seen Lexan successfully thermoformed, many years ago. A thermoset cannot be heated and re-shaped.

Lexan was originally developed for, and continues to be used in, applications requiring higher strength than acrylic, as well as higher abrasion resistance. So, Lexan actually is more difficult to scratch thab acrylic. Those are the two main reasons why Lexan is used in windshields.
Originally Posted by jberg
I work with the stuff.
Lots of good information above.
Polycarbonate is safer as it is flexible and won't easily shatter.
It can be formed though some companies offer flat panels which, since they're flexible, can be curved as they're inslalled if the material is thin enough.
Some companies offer coated poly that is more scratch resistant, though this costs more.
I'd always choose poly for safety. If you're careful you can keep the fine scratches to a minimum and your shield will last years. They're not that expensive that you can't replace one every five years if it gets scratched.
I'd avoid putting acrylic on your bike. There are already enough sharp objects to snag your ***** on should you fall.
Edit: I think the video says it better than anything.
Thank you! I was about to explain the supiorority of Lexan over Acrylic but you guys did a fine job...I've been working in thermoplastics for over 20 years working with both thermoplastics and thermoset materials.
 
Reply



All times are GMT -5. The time now is 09:46 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE