I'm needing to glue a couple pieces of lexan together since the sheets I was using aren't big enough for a full quarter window. So I was wondering what people recommended to glue to pieces together that would hold up in extreme temperatures and could possibly hold up to me trying to blast them out with a nice set of subwoofers. Any ideas?

Once upon a time I knew, but seems to me that the store that sold you the Lexan would know (maybe). And Home Depot here carries Lexan plenty big for a quarter window, and wouldn't have the seaming issues.

I believe Gorilla Glue would do you up right. Course, the glue would be stronger than the parent material at that point, but at least the glue won't break.

Go with gorilla glue. My friend slashed one of his 35/12.5 baja claws while wheelin and put gorilla glue in the cut and the tire works like a dream

Nothing like a big Gorilla Glue seam down the middle of a window...

 

I am not sure that the polyurethane glue would adhere to the polycarbonate... but don't know that it wouldn't. Most "glues" used on plastics are actually solvent welds.

Once upon a time I knew, but seems to me that the store that sold you the Lexan would know (maybe). And Home Depot here carries Lexan plenty big for a quarter window, and wouldn't have the seaming issues.

 

Well the lexan was free courtesy of Wal-Mart security. Also the closest Home Depot is about an hour away. I'll give Gorilla glue a try to see if I can get it to work.

I believe you are correct regarding Solvent weld glue.

 

There are different plastics and ways to glue... One example I have seen is a solvent glue with long schnouts that you just run along the joint, hold and it melts the material (solvent) then cures back out in a minute or so. But each type of plastic is diffent...

 

Sounds like your in a hurry. I know at HOme depot they have a two part mix (activator) & (Glue) in a kit for plastic. My son used it on plastic parts on his paint ball hopper. (acts much like a super glue)

 

Next choice would be a super glue...

 

Sorry not familiar with Gorila glue.... seen it, never used it. Try it on a test piece and see what happens?

 

My .2 cents

Harbor frieght has a plastic welder that you can buy...that'll do it up nicely...complete with big, borking seam right down it. But it won't break!

two part apoxy any home improvement store would have it but it would be over kill ounce again

Use supr glue, it is almost an invisable join with plexiglass.

 

I have laminated plocks together with superglue before, you gan see through the glue layer easily.

 

Its what they reccomend too.

ok I'm not really in a hurry, I'd rather try and do it with something that I know would probably work, or I'll have to spend a lot more $$ and drive a few hours away to try and get a bigger sheet of lexan. I'm going to try different things on some scrap I have and since they're both straight edges that I didn't cut, They'll bond together very nicely. Hopefully I can get something that will withstand the elements...