fastest way to make a sealed box airtight?

[dmc 10+ year member]

I just built a sealed box for a 12" sub. I need to make sure it's airtight, but I don't want to have to wait overnight for silicone to dry. Is there something else I can use to seal it that will take less drying time?

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[david in german 10+ year member]

build it air tight from the beginning is the best way, otherwise you need to wait for the silicone to cover your flaws.

 

[dmc 10+ year member]

Would "Great Stuff" do the trick?

http://greatstuff.dow.com/greatstuff/diy/products/gc.htm

 

[grassroots 10+ year member]

 

[bubbagumper6 5,000+ posts]

dude just put the silicon in it and shut up. If you half *** it, it will show

 

[Focalrock4life 10+ year member]

mix up a batch of resin and coat teh inside of your box with it..shouldnt take but a couple minutes to dry....

 

[k12ug 10+ year member]

while we are on the "airtight" subject

when i used the gasket that came with my sub....it was no were near being air tight...but when i took it of and used this really strong sealant used to make things water prof my dad had...then everything was sealed....it seems no one has that problem.....

is there any trick i could use?

 

[Lakota 5,000+ posts]

mix up a batch of resin and coat teh inside of your box with it..shouldnt take but a couple minutes to dry....

It will take longer than that unless you put a lot of hardener in it and keep it hot.

 

[Lakota 5,000+ posts]

while we are on the "airtight" subject
when i used the gasket that came with my sub....it was no were near being air tight...but when i took it of and used this really strong sealant used to make things water prof my dad had...then everything was sealed....it seems no one has that problem.....

is there any trick i could use?

If you don't mind ugly installs like bassheads put duct tape around the sub.

 

[Blove1991 10+ year member]

Use silicone and just wait it out

 

[406er 10+ year member]

man how big are the gaps u need to fill. if u need expanding foam to fill em, just start over. a air tight box starts with the cuts. everything square. all the peaces glued, clamped and air nailed. ive built a few sealed boxes in my day, and have yet to use anything BUT the wood clue it self to keep it sealed up tights