Advice on epoxy filling cracks in mesquite?

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Forum topic by ColonelTravis posted 10-23-2014 02:33 AM 2463 views 0 times favorited 3 replies Add to Favorites Watch
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1801 posts in 1920 days

10-23-2014 02:33 AM

Topic tags/keywords: mesquite epoxy crack

Got a mesquite slab for a table top. One crack in my board goes all the way through, top and bottom:

I’ve seen a lot of people making their fills after the wood has been dimensioned substantially. But it would seem to me in the case of my board here I need to fill this part before doing that so it’s stabilized. Aside from that, didn’t know advantages/disadvantages to when to fill? I’ve planed a few spots on the board just to see the grain, haven’t done anything else yet.

Also, that crack isn’t open space all the way through. There’s a bunch of gunk in there – how much do I need to clear out – just as much as I can with a file or something until I hit that turn? Is thinking about using dental floss the sign of a dumb and deranged woodworker?

3 replies so far

View jerryminer's profile


928 posts in 1467 days

#1 posted 10-23-2014 03:18 AM

I’ve done several of these (tables with cracks/splits) and have never bothered with cleaning out the crack before filling. Never had a problem. I put blue painter’s tape on the bottom so the epoxy doesn’t run out, then fill, sometimes with a pigmented epoxy (I use System Three—- they offer pigmented epoxy resin, but you can use your own pigments instead)

Filling before flattening makes sense if the slab is moving around.

-- Jerry, making sawdust professionally since 1976

View mahdee's profile


3888 posts in 1794 days

#2 posted 10-23-2014 12:31 PM

It also depends on what you want it to look like. If you are going to use stones or metals like copper, then it is best to go ahead and dimension it first. Epoxy alone plane well. If the gunk in there is hard, then epoxy won’t penetrate it and more likely will dry on surface. In that case CA glue might be a better option. Looks good so far.


View putty's profile


1192 posts in 1633 days

#3 posted 10-23-2014 12:39 PM

I like to use fiberglass resin, I mix it with black chalk for a chalk line to color it. With fiberglass resin you can sand it a lot sooner.
Try it on a scrap piece to see if it will work for you.

-- Putty

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