patching holes in mdf?

[Lil Poot 5,000+ posts]

so i drilled holes in my last 2 boxes to mount to the chassis of my truck. they're really nice boxes, so i'd rather not just throw them away. whats the best way to patch up a good sized (1/2 inch diameter) hole in some mdf?

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[PaulThompson229 10+ year member]

Mix up sawdust and glue and fill the hole with that, put a peice of tape on the bottom side of the hole to hold the mixture in place until it hardens.

 

[Lil Poot 5,000+ posts]

Mix up sawdust and glue and fill the hole with that, put a peice of tape on the bottom side of the hole to hold the mixture in place until it hardens.

is this better than wood filler putty?

 

[PaulThompson229 10+ year member]

is this better than wood filler putty?

I would assume so seeing as the glue joints are supposed to be the strongest parts on the box, so I think the same would be true for a sawdust/titebond plug, this is the way I have always done it. The putty doesn't bond to the mdf and soak in like the glue does so it seems to me that high enough pressure on a putty plug could blow it out of the hole, I have never used putty before though so I can't say from personal experience.

 

[Lil Poot 5,000+ posts]

how do you gauge how to mix it, just eyeball it, look for a certain consistancy, measure?

 

[PaulThompson229 10+ year member]

No specific measurements, just make it thick and lumpy, kind of like the consistancy of cookie dough, then pack it into the hole as tight as you can, after that put a few extra drops of glue onto the top of the plug so it can soak down into the mixture and the surrounding surface wood.

 

[dman4486 5,000+ posts]

how do you gauge how to mix it, just eyeball it, look for a certain consistancy, measure?

just by consistency......mdf is made of is sawdust and glue:fyi:.....so you are just creating more mdf:

 

[mlstrass 5,000+ posts]

why not just glue a small piece of scrap MDF over the hole...

 

[Trey803 5,000+ posts]

Caulk?

 

[fatboyracing 10+ year member]

put a peice of mdf inside the box covering the hole

 

[I Like Waffle]

liquid nails //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[PaulThompson229 10+ year member]

why not just glue a small piece of scrap MDF over the hole...

He wants it to look good

Caulk?

Doesn't bond to the wood

put a peice of mdf inside the box covering the hole

Wouldn't cover the hole on the outside, again he wants it to look good

liquid nails //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

You fail, liquid nails sucks

 

[chase007 10+ year member]

use e-poxy it can hold 5,000 poud per sq inch but it cost like 35$ a tube i i have 4 tubes on my shelfs there so handy in box building for thoughs fck ups

 

[PaulThompson229 10+ year member]

use e-poxy it can hold 5,000 poud per sq inch but it cost like 35$ a tube i i have 4 tubes on my shelfs there so handy in box building for thoughs fck ups

Interesting, never heard of it, got a link?

 

[chase007 10+ year member]

Interesting, never heard of it, got a link?

local hardware store has them..at my resturant we poured epoxy on the bar so it had this clear finish coat on it like a big thick layer of sealer....sec i'l get u a nice link but ur local stores always have this ...even walmart http://www.aplusbputty.com/applications.htm

e-poxy>all glues