Previous Thread
Next Thread
Print Thread
gluing in lexan polycarbonate window #3008333
01/23/22 09:26 PM
01/23/22 09:26 PM
Joined: Jun 2005
Posts: 482
Michigan
B
BigFish69 Offline OP
mopar
BigFish69  Offline OP
mopar
B

Joined: Jun 2005
Posts: 482
Michigan
has any one glued lexan polycarbonate window in instead of screwing it, if so what adhesive did you use.

Last edited by BigFish69; 01/23/22 09:27 PM.
Re: gluing in lexan polycarbonate window [Re: BigFish69] #3008426
01/24/22 08:17 AM
01/24/22 08:17 AM
Joined: Jan 2003
Posts: 5,892
Florida
Locomotion Offline
master
Locomotion  Offline
master

Joined: Jan 2003
Posts: 5,892
Florida
Never used adhesive in my bracket car & would never trust it. I don't recall if there is anything in the rule book about it.

Re: gluing in lexan polycarbonate window [Re: BigFish69] #3008432
01/24/22 08:58 AM
01/24/22 08:58 AM
Joined: Jan 2003
Posts: 9,963
Frostbitefalls MN (Rocky&Bullw...
gregsdart Offline
master
gregsdart  Offline
master

Joined: Jan 2003
Posts: 9,963
Frostbitefalls MN (Rocky&Bullw...
I wouldn't be willing to try it till I new it is being used in Pro Stock or similar classes. Call some of the big chassis builders to seek the best guidance on how to install.


8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
Re: gluing in lexan polycarbonate window [Re: gregsdart] #3008439
01/24/22 09:42 AM
01/24/22 09:42 AM
Joined: Mar 2006
Posts: 9,791
MI, usa
dvw Offline
master
dvw  Offline
master

Joined: Mar 2006
Posts: 9,791
MI, usa
All mine is set in the factory rubber seals. 9 years, 150mph. Never an issue.
Doug

Re: gluing in lexan polycarbonate window [Re: dvw] #3008460
01/24/22 11:26 AM
01/24/22 11:26 AM
Joined: Jan 2003
Posts: 1,599
westerly, ri. usa
4
440lebaron Offline
pro stock
440lebaron  Offline
pro stock
4

Joined: Jan 2003
Posts: 1,599
westerly, ri. usa
3M urethane windshield caulking, used in OEM good till 170 mph, glass needs to be molded to shape (curve)


all parts are sold as is, all parts are considered used no warranties or returns
paypal/check/money order, shipping is from zip 02891, buyer pays paypal fees 24% IRS 1099A plus 3% of part price, check/money order preferred
site is not monitored 24/7 there might be a delay in response

Re: gluing in lexan polycarbonate window [Re: BigFish69] #3008461
01/24/22 11:28 AM
01/24/22 11:28 AM
Joined: Jan 2003
Posts: 2,289
NE Ohio
DoubleD Offline
top fuel
DoubleD  Offline
top fuel

Joined: Jan 2003
Posts: 2,289
NE Ohio
I have used the 3M window weld - it comes in a roll in different thickness for the height you want the window to set up from the body - I can tell you taking the window back out after it sets is a job in itself.

Re: gluing in lexan polycarbonate window [Re: DoubleD] #3008490
01/24/22 01:09 PM
01/24/22 01:09 PM
Joined: Dec 2006
Posts: 2,094
Byron, NY
W.I.N. Racing Offline
top fuel
W.I.N. Racing  Offline
top fuel

Joined: Dec 2006
Posts: 2,094
Byron, NY
Yes Optic Armor provides it with it molded windshields.

optic armor.jpg

'01 P1500, Blown/Inj BAE,/Veney ,Bruno/CS2,Dana 60
'01 Dodge 3500 S Cummins Auto, Fresh air kit, 4" Exhaust,
'05 Dodge Magnum R/T - Too Much to list
'60 Willys CJ5
'01 International LPX - Project,DT466, Allison
'64 Plymouth Valiant, Inj 528 Hemi, 2spd
Re: gluing in lexan polycarbonate window [Re: W.I.N. Racing] #3008723
01/25/22 08:23 AM
01/25/22 08:23 AM
Joined: Nov 2003
Posts: 1,825
NW Indiana
F
fbs63 Offline
top fuel
fbs63  Offline
top fuel
F

Joined: Nov 2003
Posts: 1,825
NW Indiana
Look up Larry Larson's Cadillac on YouTube. All the lexan is glued in with urethane windshield adhesive. Even the side windows are glued to the frame. Some cool little details on that car.

Re: gluing in lexan polycarbonate window [Re: fbs63] #3008867
01/25/22 02:43 PM
01/25/22 02:43 PM
Joined: Sep 2003
Posts: 19,239
north of coder
moparx Offline
"Butt Crack Bob"
moparx  Offline
"Butt Crack Bob"

Joined: Sep 2003
Posts: 19,239
north of coder
this question has rattled around in the cobwebs of my noggin for a long time, so i guess this is as good a time as any to ask.
supposing i am correct in assuming [you know what that means. whistling] new vehicles use the glued in glass as a somewhat structural enhancement, just exactly how much enhancement is this worth, and is lexan or it's newer, stronger versions [or maybe just different names, i don't know], somewhat comparable ?
if this a stupid question, i apologize in advance...........
beer

Re: gluing in lexan polycarbonate window [Re: moparx] #3009020
01/25/22 09:58 PM
01/25/22 09:58 PM
Joined: Jun 2005
Posts: 482
Michigan
B
BigFish69 Offline OP
mopar
BigFish69  Offline OP
mopar
B

Joined: Jun 2005
Posts: 482
Michigan
Thanks for all the good advise urethane it is

Re: gluing in lexan polycarbonate window [Re: BigFish69] #3009040
01/25/22 11:41 PM
01/25/22 11:41 PM
Joined: Jan 2003
Posts: 18,389
UPPER MICHIGAN, MARQUETTE COUN...
N
NITROUSN Offline
I Live Here
NITROUSN  Offline
I Live Here
N

Joined: Jan 2003
Posts: 18,389
UPPER MICHIGAN, MARQUETTE COUN...
My experience is it will not last. I have heavy equipment that have glass of poly and other compositions. They set and work well until time takes over. The glass will release from the adhesive. Not today but wait and see.

Last edited by NITROUSN; 01/25/22 11:42 PM.
Re: gluing in lexan polycarbonate window [Re: NITROUSN] #3009210
01/26/22 02:15 PM
01/26/22 02:15 PM
Joined: Jan 2003
Posts: 19,304
Las Vegas
Al_Alguire Offline
I Live Here
Al_Alguire  Offline
I Live Here

Joined: Jan 2003
Posts: 19,304
Las Vegas
FWIW it is NOT a new practice, been going on for years. It definitely seems to be better suited to molded lexan than flat sheets in the windshield.But it works with flat sheet as well as long as the windshield does not have a complex curve to it. I have gone back and fourth in my Dakota, stock windshield, lexan bolted or lexan bonded. It previously had lexan with 88 screws, yes 88! So I dont really want to use screws as that's to many and the screws used were to large. Also I cannot use a machine screw and nut which I would prefer to use. So I think I am going to "glue" it in and see hoe it goes. No one makes a molded windshield for a Dakota. But it is a gentile curve so we will do our best and see it goes. FWIW I have used molded front and rear glass many times and had it simply held in with factory gaskets and never had an issue. Of course I only went 170MPH that way. The truck should be able to achieve similar MPH all out when done so we shall see.


"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"
Re: gluing in lexan polycarbonate window [Re: Al_Alguire] #3009822
01/27/22 11:31 PM
01/27/22 11:31 PM
Joined: Oct 2008
Posts: 1,176
East Coast
A
A/MP Offline
super stock
A/MP  Offline
super stock
A

Joined: Oct 2008
Posts: 1,176
East Coast
Lexan or any polycarbonate or acrylic expands and contracts with temp.That's why your bolt holes need to be larger than the diameter of the bolt. If the lexan is in a track and urethane , then there is some wiggly room.

Re: gluing in lexan polycarbonate window [Re: A/MP] #3009993
01/28/22 03:24 PM
01/28/22 03:24 PM
Joined: Dec 2011
Posts: 200
Texas
Chief Offline
enthusiast
Chief  Offline
enthusiast

Joined: Dec 2011
Posts: 200
Texas
Has anyone thought about using the double sided tape that is used on screw less trailer panels? Just had that thought while reading this.
Not sure if it can be bought in different thickness.

Dave


Dave Covey
Re: gluing in lexan polycarbonate window [Re: Chief] #3010090
01/28/22 08:13 PM
01/28/22 08:13 PM
Joined: Jun 2005
Posts: 482
Michigan
B
BigFish69 Offline OP
mopar
BigFish69  Offline OP
mopar
B

Joined: Jun 2005
Posts: 482
Michigan
Thought about it just wasen't sure it would hold, Is that what they use on trailers seem like pretty big panel to be held on by tape ?

Re: gluing in lexan polycarbonate window [Re: BigFish69] #3010239
01/29/22 01:10 PM
01/29/22 01:10 PM
Joined: Dec 2011
Posts: 200
Texas
Chief Offline
enthusiast
Chief  Offline
enthusiast

Joined: Dec 2011
Posts: 200
Texas
Originally Posted by BigFish69
Thought about it just wasen't sure it would hold, Is that what they use on trailers seem like pretty big panel to be held on by tape ?


It is supposed to be some special tape, made by 3M I believe. lot of prep work compared to rivets or screws. They have been doing it for years and it holds up well. I have however seen a few trailers where it stopped holding.

I have a friend in Waco who re skinned his 32 foot tag and he went screwless, he said it was a pain in the rear for him but he was doing it with the walls vertical. Trailer did turn out nice.

I haven't checked but I'm curious as to there are different thickness of the tape.

Dave

EDIT: I just checked and it comes in .045 (45 mil) or .062 (62 mil).

3 M brochure

Last edited by Chief; 01/29/22 01:17 PM.

Dave Covey
Re: gluing in lexan polycarbonate window [Re: Chief] #3010661
01/30/22 08:46 PM
01/30/22 08:46 PM
Joined: Jun 2005
Posts: 482
Michigan
B
BigFish69 Offline OP
mopar
BigFish69  Offline OP
mopar
B

Joined: Jun 2005
Posts: 482
Michigan
That sure would be a easy way out







Powered by UBB.threads™ PHP Forum Software 7.7.1