Using 2x4's?

[evil_lies]

I know mdf is the standard material for boxes, but I am thinking about doing a false bottom in my truck to fit a full size spare and hide my amp. I was thinking I might incorporate a couple shallow subs in the construction. If I used the 4" side of a 2x4 as the side walls and msg for top and bottom, sealing the crap out of the seams should I expect problems?

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[adulbrich 5,000+ posts]

Nope that's perfectly fine. Just seal the edges with caulk like you were saying.

 

[youdoofus]

Nope that's perfectly fine. Just seal the edges with caulk like you were saying.

ive seen good results with liquid nails too

 

[adulbrich 5,000+ posts]

ive seen good results with liquid nails too

Liquid nails is designed to be an adhesive. I don't use it.

On small boxes I glue every piece together and use screws. After the glue dries, silicone caulk is what i use to seal small cracks.

 

[Buck 5,000+ posts]

Loctite PL premium. Wear gloves

 

[adulbrich 5,000+ posts]

Loctite PL premium. Wear gloves

That's what I used to stick plywood sheets to the roof of my truck. I still haven't been able to remove it from the roof. It sticks to painted metal surprisingly well.

 

[Buck 5,000+ posts]

That's what I used to stick plywood sheets to the roof of my truck. I still haven't been able to remove it from the roof. It sticks to painted metal surprisingly well.

I've done the same with MDF in my explorer

 

[BEEKAY]

I've used tube after tube of PL I love that ****. It's sticks to anything and seals seams very well. Just don't get it on your skin it literally stains your skin. The only way to get it off is just waiting it out and using friction lmao.