glue for boxes, securing fiberglass

I'm new to the forums but def not new to installs. However I still have a few questions that I was hoping to get answered.  Ive used this sight for alot of my installs and the help has always been wonderful so I'm hoping I can get some insightful info here. First I was wondering what kind of glue (if any) was used to build boxes for subs. All the boxes Ive built Ive just screwed together and then siliconed but I'm wondering if there is a better way or atleast a way to form a much better bond.  Also I was wondering how when the box is finished or when custom pieces are made of fiberglass or just mdf how are they secured? I may just be looking to far into this but I want to build a wall across the inside of the trunk as well as fiberglass a piece in front of that but I'm not sure how to secure everything down without being able to get behind it. (I know this isnt the best way to describe something but I can post a pic of what I'm trying to do if that will make it easier.) I just did my first fiberglass project last week and that was some tweeter pods in the sail panel for one of my buddies and they turned out great. I'll post some pics on here for criticizing once I get a chance. I'm trying to learn everything I can as I plan on attending the Installers Institute this summer and I'd like to have as much practice as possible before then. Anyway thanks in advance for any insightful information that some of yall can provide. I'm eager to learn as much as I can so all help is greatly appreciated.

I like to use liquid nails to "glue" my mdf together. as far as securing fiberglass enclosures, it all depends where it is and the size. Some I bolt down using stock bolts. others I have to add bolts. either way, the enclosures must be bolted down."People with mullets live 40% longer"   - Ricky Bobby

I like to use carpenter's glue and screws to build my boxes. Carpenter's glue shrinks as it dries so it pulls the seams even tighter together. I don't like to use silicone because the chemicals evaporating from it can affect SOME surrounds on subs. As for attaching the glass to anything, it'll vary based on what the project is. Ganbatte ne!Never send your ducks to eagle school.

The difference between ordinary and extraordinary is that little extra.

The 3Ls of life: Learn from the Past, Live for the Present, Look to the Future.

I like to use Elmers woor glue (carpenter's glue) between the pieces of the enclosure, then seal the inside with liquid nails construction adhessive.  Never had a problem with boxes built this way.  As far as securring a fiberglass panel, you can screw it on and cover the screws with color matched screw caps.  Or, I like to use grille guides like the ones that are used to secure grilles on home speakers.  They are a pair, ball and socket type of fastener which mount between the box and false panel and are totally invisible!  Good luck!Devil's_Workshop

bellsracer wrote: I like to use carpenter's glue and screws to build my boxes. Carpenter's glue shrinks as it dries so it pulls the seams even tighter together. I don't like to use silicone because the chemicals evaporating from it can affect SOME surrounds on subs.

when i use silicone, i wait atleaste 24 hours to make sure everything is evaporated

I wish my customers had your patience for their sub installations...Never send your ducks to eagle school.

The difference between ordinary and extraordinary is that little extra.

The 3Ls of life: Learn from the Past, Live for the Present, Look to the Future.