Coloring Epoxy

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Forum topic by Marc5 posted 06-02-2010 04:18 AM 2005 views 0 times favorited 13 replies Add to Favorites Watch
View Marc5's profile


304 posts in 3547 days

06-02-2010 04:18 AM

Topic tags/keywords: question

I have a knot to fill a bout the size of a quarter in the workbench top I am working on. The top is cherry and I want to fill the hole with black or a very dark brown epoxy. I have some black oil based paint and walnut oil based stain and was wondering if a couple drops of either of these can be used as an acceptable method to color epoxy.

Any help and direction is appreciated.

-- Marc

13 replies so far

View a1Jim's profile


117342 posts in 3782 days

#1 posted 06-02-2010 04:25 AM

You can usually color epoxy but I would do a test first and see how it comes out.

-- wood crafting & woodworking classes

View SnowyRiver's profile


51457 posts in 3686 days

#2 posted 06-02-2010 04:26 AM

I havent tried using epoxy, but I have used a mixture of polyurethane glue and fine sawdust from the wood I was filling. I filled some knots and it worked great. I tinted the whole mixture with the stain that I was going to eventually use on the piece. Then when I stained the piece I went right over the patched spots again and it turned the knot holes slightly darker than the rest of it.

-- Wayne - Plymouth MN

View David Kirtley's profile

David Kirtley

1286 posts in 3203 days

#3 posted 06-02-2010 05:10 AM

Matching sawdust would be pretty good. One thing that they use is graphite. It will color it and be kind of slick too. I would not use other chemicals. Inert solids only.

-- Woodworking shouldn't cost a fortune:

View dustbunny's profile


1149 posts in 3500 days

#4 posted 06-02-2010 11:18 AM

I recently tried this tint called Mixol at WoodCraft.
It can be added to epoxy and comes in a wide variety of colors.
The small bottles, 20 ml, are $5.50 and one to two drops is all you need.
I found it still allowed the epoxy to set up good and hard, and sanded well.
I used black to fill some voids in ebony without a trace of suspicion of being filled.


-- Imagination rules the world. ~ Napoleon Bonaparte ~

View Gene Howe's profile

Gene Howe

11078 posts in 3634 days

#5 posted 06-02-2010 01:51 PM

I just use acrylic craft paint. I was worried about using water based stuff, but it did fine.
Some use artist’s oils.
When I use saw dust, I stain the saw dust to match the wood’s final finish first. that’s only if the repair(?) is not decorative. Most often the defects become a “design element”...hehehe. When you work with mesquite, you find a whole lot of “design elements!

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

View Les Casteel's profile

Les Casteel

160 posts in 3265 days

#6 posted 06-02-2010 02:23 PM

I have to fill knots all the time. Epoxy is the best way to do it without a doubt. I use T-88 fast cure and tint them black either with a black tint from T-88 or brown using T-88 and bit of walnut sanding dust. Mix it up in a small serving cup (like you see catsup come in at the fast food places) with a popsicle stick (found at Wal-Mart craft area). I’ve used artist’s oils with great results too. This technique can also be used for joint mistakes as long as the gap isn’t too big. If its humongous then use stained epoxy and slip in small slivers of wood into the joint.

Good Luck!

-- Les, Missouri,

View rance's profile


4266 posts in 3366 days

#7 posted 06-02-2010 02:38 PM

Toner from used up printer cartridges. WEAR GLOVES though! ! !

-- Backer boards, stop blocks, build oversized, and never buy a hand plane--

View Marc5's profile


304 posts in 3547 days

#8 posted 06-03-2010 03:25 AM

Thanks for the info – I am going to do a couple est runs and will post the end result when done.

-- Marc

View John Ormsby's profile

John Ormsby

1288 posts in 3942 days

#9 posted 06-03-2010 04:11 AM

You can get many different epoxy tints from ceramic tile supply companies. I use it at times and it works great. Just mix it with epoxy and hardener in the normal way.

-- Oldworld, Fair Oaks, Ca

View Marc5's profile


304 posts in 3547 days

#10 posted 06-26-2010 03:40 AM

Hey Jocks,

Well I did it. I tried the stain and it look a little milky so I tried the toner and it worked good.

Thanks for the help!

-- Marc

View Milo's profile


869 posts in 3524 days

#11 posted 06-26-2010 03:57 AM


There are also powdered dyes you can try out there. Remember though, additives can effect the cure time of your epoxy.

-- Beer, Beer, Thank God for Beer. It's my way of keeping my mind fresh and clear...

View RichardH's profile


295 posts in 3207 days

#12 posted 06-26-2010 05:00 AM

A 2nd for Milo’s approach. I much prefer the powdered dyes mixed with epoxy as I’ve had less predictable results using any liquid dyes, etc. For small fills, powdered sawdust and CA works fairly well.

-- "It's supposed to be hard. If it wasn't hard, everyone would do it...It's the hard that makes it great."

View Jim Finn's profile

Jim Finn

2687 posts in 3127 days

#13 posted 06-28-2010 02:00 AM

A friend of mine mixed epoxy with blue chalk from the dollar store and it lookes like inlayed turquoise.

-- No PHD just a DD214 Website>

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