so me and my friend built a box for my back seat and were wanting to plexiglass the whole front... on question is would plexi hold a 10" shallow sub? and im about to post some pictures and i was wondering if you guys had any ideas of how i would plexi this and it hold good








let me know what yall think...

i still have to carpet it and do the trim so dont worry about the two different colors

 

First, I would use Lexan before I would use Plexi. It is stronger and easier to work with. You are also going to need something pretty thick (1/2" to 3/4")which is going to be expensive compared to MDF. Now to make it hold and look good doing it is beyond me so I can not offer any advice on that one. Good luck to you and post pics if you do it.

 

what is lexan?

 

It's just a tough plexiglas. It dont crack and spliter as easy.

 

oh ok so i could put nails and screws through it? and would clear silicon help it stick to wood?

 

drill first, then use bolts. silicon will probably help

 

ok sweet thanks for the help

 

Definately DRILL FIRST!!! 1/2 to 3/4 plexi should work. Whats the RMS?

 

a triangle glass drill bit works best to drill it with. like this http://www.virtualvillage.com/sku007...LAID=219530711 you can get them at a hardware store
when you almost get through it make sure you dont press very hard at all just use slight pressure and it wont crack on you and take it slow on the plexi or lexan which ever you decide to go with because it will crack.
if you use screws to secure it make sure you use little washers between the head of the screw and the plexi and dont over tighten it because itll crack. you can use the black foam weather stripping like you put around doors in a house to seal around the edges. silicon will make it hard to remove if you need to get back into it for some reason.

 

Ive always just used an extremely sharp drill bit that was one size too big and a flat washer on either side.

Hmm.... Those look fragile. Are they?

 

that is actually a spade type glass bit they make one that has 3 edges on it that is better shaped kind of like a pyramid but i couldnt find one on the internet
no not really you can only drill plexi and glass with them. its what we used when i worked as an auto glass installer to drill plexi for customers and mirrors n glass. they work great and dont make it crack at the last little bit before you go through the plexi because it will crack if your not carefull with a regular bit because it bites to much. but when you drill glass you have to use a lubricant like wd 40 or linseed oil works great but dont put that on plexi and when you drill the plexi make sure you leave the paper on it untill you go to install it so it doesnt get scratched.

 

when I did my plexi I used a acrylic bit and a drill press

 

I just always took a regular bit and predrilled the entire way through with a 1/16 then came back with the correct size. Havent had a problem yet.... But ill see if I can find that pyramid bit, its worth a try...

 

you wont have as many problems with a regular drill bit if you only drill on thicker plexi and lexan with it 1/2 in 3/4 but on the thin stuff 1/8 1/16 youll see the diff. it also helps to not crack it if you have it laying flat on a piece of wood where your drilling it so when the drill bit pierces the plexi it wont try to go through it really quick it will be held up by the wood but you have to hold the plexi tight on the wood.

 

Lexan was GE Plastic's (now called SABIC, a Saudi company) registered trademark name for polycarbonate. Polycarbonate is far superior to plexiglas but also more expensive. Polycarbonate is stronger and doesn't crack as easily.

Whatever you use to drill either with, use a slow drill speed and patience for best results.