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Old 12-29-2017, 05:18 PM
Grant Galloway Grant Galloway is offline
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Lexan Windows

Looking for some input! I am gutting my doors and windows in my Civic..

The factory side glass is about 3.5mm thick, anyone know if there is any required thickness or recommendations for how thick it should be?

Not doing the windshield

Grant
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Old 12-29-2017, 08:07 PM
Gary Gary is offline
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Re: Lexan Windows

I use 1/8 inch. Works fine. Just trace your glass window on tbe lexan without removing the protective cover, cut with a jigsaw, and you are done. Forget rolling anything up and down. Doesn't work with a flat panel. I use two long machine screws to hold the lexan window up where it belongs.
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Old 12-30-2017, 04:25 PM
Grant Galloway Grant Galloway is offline
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Re: Lexan Windows

Thanks Gary..

So no rule on mandatory thickness?

I plan to completely remove the glass in the front doors in favour of window nets.

Lots of work being done on the Civic this winter

Grant
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Old 12-30-2017, 06:19 PM
Gary Gary is offline
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Re: Lexan Windows

Grant, the replacement of glass windows is permitted in the rules, section 1.4.5. There are no minimum thickness rules for the windows in the doors or the rear window. Most people use 1/8 inch (3 mm.) for this. However, if you change the windshield as per rules 1.4.6 & 7, there are several specific requirements for that, including a minimum thickness of 6mm.

I once replaced the windshield in an ice race car with Lexan. This did not work well, as I did not pay the really big bucks for the kind that won`t scratch. The result, once the wipers had been used, was a mass of tiny scratches. Horrible to drive into the sun. I won`t do that again. Treat your Lexan windows with care.

Finally, no doubt you are aware of the PIP`s for window modification as set out in C.13, but I thought I`d mention it. Although, now I think of it, you have a cage and probably will be using race weight. Regardless, best to read the rules yourself, as always.
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Old 12-30-2017, 06:23 PM
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DavidSim DavidSim is offline
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Re: Lexan Windows

>>This did not work well, as I did not pay the really big bucks for the kind that won`t scratch.<<

I agree, do yourself a favour and buy the good stuff for any window you will be looking through (e.g. windshield, back window).

Ask me how I know !!!
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Old 12-30-2017, 07:26 PM
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Saj5DJ Saj5DJ is offline
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Re: Lexan Windows

What is the good stuff exactly? And where do you guys source it?
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Old 12-30-2017, 08:50 PM
Grant Galloway Grant Galloway is offline
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Re: Lexan Windows

Thanks guys..

Barry, spoke to Fulton Glass in Kitchener the 3mm 4'x8' sheet is $160
James Houghton sources it from them!

There is a special cleaner that will keep things looking good..

The Windshield I will be leaving stock

Grant
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Old 12-31-2017, 05:51 AM
1qwkmini 1qwkmini is offline
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Re: Lexan Windows

Grant

Give Parker Plastics (Clarke Side Rd) a call they stock Lexan...not sure on price.
(519) 457-2535
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Old 12-31-2017, 08:30 AM
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Re: Lexan Windows

be advised if you ever plan to run your car in race and use lexan in the front there is a 1/4 inch thickness requirement.
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Old 12-31-2017, 11:48 AM
Grant Galloway Grant Galloway is offline
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Re: Lexan Windows

Quote:
Originally Posted by Doug P View Post
be advised if you ever plan to run your car in race and use lexan in the front there is a 1/4 inch thickness requirement.
Stupid rule when the factor glass is 3.6mm 1/4 inch is over 6mm not even sure that it would fit??

Regardless I will not be doing any wheel to wheel with this car!

Grant
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Old 12-31-2017, 11:49 AM
Grant Galloway Grant Galloway is offline
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Re: Lexan Windows

Quote:
Originally Posted by 1qwkmini View Post
Grant

Give Parker Plastics (Clarke Side Rd) a call they stock Lexan...not sure on price.
(519) 457-2535
Thanks bud, I sourced locally even if they are cheaper truck will burn $30 in gas to go to London..

Grant
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Old 12-31-2017, 11:35 PM
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Saj5DJ Saj5DJ is offline
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Re: Lexan Windows

Quote:
Originally Posted by Grant Galloway View Post
Stupid rule when the factor glass is 3.6mm 1/4 inch is over 6mm not even sure that it would fit??

Regardless I will not be doing any wheel to wheel with this car!

Grant
Not too stupid really, even Chumpcar requires 3/16". Windscreen is a big part of what keeps the driver safe from debris in event of incidents occurring in front of you; Lexan isn't as tough as auto glass given equal thickness. Plus Doug is really just trying to help.
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Old 01-01-2018, 10:58 AM
Grant Galloway Grant Galloway is offline
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Re: Lexan Windows

Quote:
Originally Posted by Saj5DJ View Post
Not too stupid really, even Chumpcar requires 3/16". Windscreen is a big part of what keeps the driver safe from debris in event of incidents occurring in front of you; Lexan isn't as tough as auto glass given equal thickness. Plus Doug is really just trying to help.
Barry, it was nothing against Doug! My point is the factory glass is the same thickness and Lexan will not shatter like OEM Tempered Glass

I would never Change the Windshield out for two reasons! Lexan scratches easily and I know the OEM Windshield is part of the structural integrity... Even though my car has a very well built cage with 90ft of tubing in it

Grant
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Old 01-02-2018, 11:31 AM
wparsons wparsons is offline
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Re: Lexan Windows

Quote:
Originally Posted by Grant Galloway View Post
My point is the factory glass is the same thickness and Lexan will not shatter like OEM Tempered Glass
Factory windshields are laminated and don't shatter like side/rear windows.
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  #15  
Old 01-02-2018, 04:53 PM
Grant Galloway Grant Galloway is offline
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Re: Lexan Windows

Quote:
Originally Posted by wparsons View Post
Factory windshields are laminated and don't shatter like side/rear windows.
Yes I am fully aware of the windshield being Laminated, was talking about all the other glass.
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