Filling screw holes in MDF subwoofer enclosure

[GoT_2B_BuMpN]

So...I am at the point of my subwoofer enclosure build where it's time to fill the pesky, ugly screw holes. I am curious what everyone's preference is. I am planning to seal & paint it. I know that some puttys and fillers do not dry to a sandable finish. So that is something to take into consideration

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[Grimmjoww]

I used to take the saw dust from cutting the mdf and mix it with wood glue. Then I would use it like Bondo to fill the divets.

 

[hispls 5,000+ posts]

You can always use bondo or any sort of putty or spackle you could buy at your local paint store.

 

[Clifff150 10+ year member]

I’ve used spackle and also wood filler. Both work well but you may have to do some areas more than once

 

[SlugButter]

If you’re doing any type of gloss or semigloss finish, use bondo. I always use a texture of some type on mine to save time. Hiding screws with gloss paint is a little difficult. On this one I bought a little bag of texture at Home Depot that I added into a gallon of primer (thinned down), and rolled it on.. I do enclosures often, and the spray paint textures are expensive. There is a stone paint that sprays on a nice texture also. It takes at least 2 cans to spray a whole box, but it is faster and easier. You can spray any color over it that you want. You can fill the screw holes once, sand them down a bit and just spray a texture. Doing a high gloss finish, you’ll really need to do a lot of sanding and hiding seams. This one was very easy to paint. The texture hid everything basically.

 

[djdilliodon!]

I use body filler.

 

[metalheadjoe 10+ year member]

I used Bondo All Purpose Putty on my last box.

 

[akheathen Premium Member]

depends how deep the holes are. body filler (bondo) will shrink and pull if its too thick, just like primer will. wood glue mixed with sawdust, or wood glue and a dowell cut flush makes for good filler that stays bonded and reacts with the surrounding wood just the same.

 

[Ridinhi 5,000+ posts]

 

[GoT_2B_BuMpN]

I used to take the saw dust from cutting the mdf and mix it with wood glue. Then I would use it like Bondo to fill the divets.

Yea. That's what I did. I mixed the glue with the dust from sanding and fill in the bigger holes. Then filled the rest with wood filler..works awesome