Windshield material


Information and questions on GL1500 Goldwings (1988-2000)
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Redhot
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Windshield material

Post by Redhot » Tue Sep 04, 2018 1:12 pm



Considering a new screen. What is original screen made from ? I have option of Lexan or Perspex as a replacement. What are pros and cons of each ? BTW. I want to add cut to add a vent. (Did this on original screen just fine)



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offcenter
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Re: Windshield material

Post by offcenter » Tue Sep 04, 2018 1:38 pm

I would go with Lexan.
Lexan is just about unbreakable, and it's easy to cut.
Perspex ( I think you mean acrylic) shatters easily, and
it's very easy to break while cutting.
Plus, you need a much thicker, HEAVIER piece of acrylic
to equal the strength of a thinner piece of Lexan.
George in Jersey.
99 Goldwing GL-1500 SE
76 Goldwing Gl-1000
77 Honda CT-90 "Trail 90"

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WingAdmin
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Re: Windshield material

Post by WingAdmin » Tue Sep 04, 2018 1:45 pm

Redhot wrote:
Tue Sep 04, 2018 1:12 pm
Considering a new screen. What is original screen made from ? I have option of Lexan or Perspex as a replacement. What are pros and cons of each ? BTW. I want to add cut to add a vent. (Did this on original screen just fine)
The original is acrylic (Perspex is a brand name of an acrylic manufacturer). You can also get polycarbonate (Lexan is again a brand name of a polycarbonate manufacturer).

Acrylic is harder, and breaks if flexed too far, or on impact. It will shatter into sharp shards if hit, something like glass. It can be scratched, but if not too deep, these can usually be polished out.

Polycarbonate is softer, and flexes and can maintain impact without breaking. Because it is softer, it can be more susceptible to scratching. For this reason, windshield manufacturers put an extremely hard coating on their polycarbonate windshields, that makes them almost impervious to scratching. If you do damage it so badly that it is scratched, it generally cannot be polished out.

Acrylic is about eight times stronger than untempered glass, polycarbonate is about 200 times stronger. Layers of laminated polycarbonate are generally used to make bulletproof glass.

To me, my choice would definitely be polycarbonate.




Redhot
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Re: Windshield material

Post by Redhot » Tue Sep 04, 2018 3:31 pm

Thanks for the info. Sooo, why did Honda use acrylic ? As acrylic does shatter, has anyone actually shattered an OEM shield ? The video is a bit worrying !

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WingAdmin
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2007 Aspen Sentry Trailer

Re: Windshield material

Post by WingAdmin » Tue Sep 04, 2018 6:52 pm

Redhot wrote:
Tue Sep 04, 2018 3:31 pm
Thanks for the info. Sooo, why did Honda use acrylic ? As acrylic does shatter, has anyone actually shattered an OEM shield ? The video is a bit worrying !
It's cheaper. :)

And yes, pretty much everyone who has hit something head on on while riding their motorcycle has shattered their windshield, as they go flying through it. Myself included.

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CrystalPistol
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Re: Windshield material

Post by CrystalPistol » Tue Sep 04, 2018 8:57 pm

Look for something made of GE Lexan MR-10, it's hard coated lexan. It will take a beating.

I cut one down, bent strip like this:





Then let go, it snapped back, no cracks, no sign of distress:





1/8" thick and as clear looking as glass, and I have cut and added a vent. as well. Edge polishes out real well.


Image

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