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View Full Version : bondo or wood filler for outer seams and screw holes



on1wheel01
03-25-2009, 03:19 PM
well I'm looking to build a really clean looking box. I've searched but couldn't find to many opinions. so which would be best wood filler or bondo to fill in the outer seams and screw holes.

netzero
03-25-2009, 03:23 PM
I've use bondo, wood filler, and glue and mdf dust... Wood filler was the worst in my case, the way it dimpled when it dried and i had to go over it twice or 3 times to get it right.

Bondo was the least amount of effort, I just put a little extra on then it appeared i needed, and it sanded down perfect the first time.

But the best was the glue and mdf dust mix. If you get the consistency to a paste, its almost as if you're "making" mdf. It's harder to sand once its fully dry, but for me, it made the most
seamless look. hope that helps

gqjeff
03-25-2009, 03:28 PM
Yea back in my HS/College wood working classes we always mixed our own with the saw dust of the mat we used with the wood glue..

mlstrass
03-25-2009, 04:46 PM
bondo, dries fast and is easy to work with. I've painted plenty of enclosures and never had a problem with it...

ChanzSafari
03-25-2009, 04:48 PM
Never used bondo but i did use wood filler. Takes about 3 times to get it looking right as said.

fatboyracing
03-25-2009, 04:50 PM
dust and glue

SubNit
03-25-2009, 04:56 PM
Dust and glue works well and is usually easiest

I don't know what type of wood filler you guys are using but I never have a problem with the smoothness. Just apply, let dry then sand

Bondo works good too

Take your pick

ChanzSafari
03-25-2009, 05:05 PM
Dust and glue works well and is usually easiest

I don't know what type of wood filler you guys are using but I never have a problem with the smoothness. Just apply, let dry then sand



Take your pick

I was using that elmers stuff, it turned out smooth just looked really crappy with one layer.

on1wheel01
03-25-2009, 05:24 PM
ok so far bondo is sounding the best I didn't know if it would crack or not from bass. any specific way of prepping and laying it.

01 S 10
03-25-2009, 05:28 PM
ive only used wood filler on the outside of boxes, its a pain in the arse most of the time. im going to start using bondo or mdf/glue combo. ive used the mdf/glue combo on the inside of boxes before though and it worked out well

netzero
03-25-2009, 05:53 PM
ok so far bondo is sounding the best I didn't know if it would crack or not from bass. any specific way of prepping and laying it.

Just little bits for screws and little things here and there wont be bothered by vibrations. Once you start doing bigger spans of it, I would worry. Bondo will do just fine, but if you want the assurance, the dust glue combo will be your best bet.

on1wheel01
03-25-2009, 07:04 PM
OK ill have to decide the box is for two American pro garbage subs 12" they won't be hitting hard enough to do any damage i doubt. But this glue / dust does sound interesting

x2o
03-25-2009, 07:08 PM
I like using mdf dust / wood glue to make the paste. Very easy to put on, dried like MDF, and doesn't cost anything extra since if your building a box your likely to already have wood glue, and well, you make your own MDF dust. :P

on1wheel01
03-25-2009, 08:35 PM
well to be honest i've never used wood glue on any of my boxes. Just liquid nail and screws, im thinking of going to harbour freight and buying some clamps and tryin one with no screws tight bond 2 all the way. I am undecided as of yet though. It would be my 1st with no screws. I am unsure on the outcome.

gqjeff
03-25-2009, 09:21 PM
The brad nailer and tight bond II worked awesome for my first build.. I had plenty of dust/glue left if I would have needed any for filler too.. Go that route..

groundpound4200
03-25-2009, 09:26 PM
well to be honest i've never used wood glue on any of my boxes. Just liquid nail and screws, im thinking of going to harbour freight and buying some clamps and tryin one with no screws tight bond 2 all the way. I am undecided as of yet though. It would be my 1st with no screws. I am unsure on the outcome.

:crap: you gotta use wood glue for joints man.... wood glue >>>>> Liquid Nails. Ive made a box with no screws before but I tongue and grooved everything and clamped it really good.

on1wheel01
03-25-2009, 09:36 PM
ok I may try it out I'm just confused on how it stays in place I know with the clamps and all. ill have to do some searching abd get some tips

BluePoint
03-26-2009, 09:04 AM
I don't use screws on any of my boxes. Titebond2, Bunch of clamps, and that box will be solid for ever. The wood will break before the glue joints will. Router the edges, sand, and fill in the cracks and you have a nice box.
http://i187.photobucket.com/albums/x18/porsche968turbo/00001-3.jpg
http://i187.photobucket.com/albums/x18/porsche968turbo/00004.jpg

gqjeff
03-26-2009, 09:05 AM
Nice and clean work man...

geowick07
03-26-2009, 09:12 AM
Definitely MDF dust/wood glue. I have used wood filler in the past, and it was a pain to work with and get right.
Just helped a friend build an enclosure and MDF dust/wood glue worked great. Never lookin' back!



geo

ChanzSafari
03-26-2009, 11:18 AM
Blu, thats a super clean box man. I love the rounded edges and no screws.

psych0ticnemes1
03-26-2009, 12:23 PM
The tongue and groove method is a sure way to make a solid box without screws.

on1wheel01
03-26-2009, 01:15 PM
ill have to do some research on the method when I get off work. I'm gonna build the box this weekend and I picking up a porter cable 690 router for 25 bucks works great just missing one handle which is a easy fix.

BluePoint
03-26-2009, 01:32 PM
I have never used the tongue and groove method. I don't even use screws on comp boxes with 50lbs subs in them. (Just my experience, Never had a problem with one coming apart). If you have a router handy, get a good round over bit to round the edges. I also use the router with circle jigg to cut the holes. Bondo works and sands easy for seams or screw holes.

BluePoint
03-26-2009, 01:37 PM
ill have to do some research on the method when I get off work. I'm gonna build the box this weekend and I picking up a porter cable 690 router for 25 bucks works great just missing one handle which is a easy fix.

Look at the jasper Jigg on parts express. Makes cutting your speaker holes exact and easy.

snb778
03-26-2009, 01:53 PM
i used wood filler... sht took FOREVER to dry!!

on1wheel01
03-26-2009, 01:58 PM
yea I'm gonna pick one of them up. although the one I'm getting is a fixed base would it work with it or only plunge ones. but I have to finish this box this weekend so ill have to go another route.

dappa5
03-27-2009, 08:13 AM
go tounge and grove you'll love it

on1wheel01
03-27-2009, 02:34 PM
where di you guys buy your clamps wonderin if wal mart sells em

on1wheel01
03-27-2009, 04:01 PM
man i hate rain cant get the mdf cuz it

BluePoint
03-28-2009, 02:37 PM
I got my clamps from harbor freight. They are cheap $$$ and do the job for box building.