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Blood-red inlay fill needed. Recommendations?
Posted: Mon Sep 02, 2013 11:46 am
by David King
I have a strangeish request for a blood splatter inlay on a holly fingerboard. I have the splatter marks lasered out and am now ready to fill but I've got to get it right the first time. I was thinking I'd seal the grain with shellac first and then mix up some acrylic paints until I got a reasonable color (I've heard that this is a bit of a trick.) I would then fill flush the rest of the way with clear doming epoxy and do my radius.
Does that seem workable?
Re: Blood-red inlay fill needed. Recommendations?
Posted: Mon Sep 02, 2013 11:56 am
by Chuck Tweedy
I expect that you will have wide swaths of blood - yes?
Then you better make sure that you get very good adhesion between you layers.
The acrylic to shellac bond is the one I'm thinking about.
Re: Blood-red inlay fill needed. Recommendations?
Posted: Mon Sep 02, 2013 1:00 pm
by Paul E Buerk
Reconstituted stone comes in a variety of colors, including red. I bought some years ago in sheet for to use as inlay material.
Re: Blood-red inlay fill needed. Recommendations?
Posted: Mon Sep 02, 2013 4:29 pm
by David King
I'd thought about the recon stone material but unless I can buy it in paste form It's not going to help me. There are hundreds of droplets of different sizes to cut and fit. I'm not getting paid for that unfortunately.
Chuck I wasn't aware of bonding issues between shellac and acrylic paints. Is there a better paint for this?
Re: Blood-red inlay fill needed. Recommendations?
Posted: Mon Sep 02, 2013 5:11 pm
by Bob Gramann
Re: Blood-red inlay fill needed. Recommendations?
Posted: Mon Sep 02, 2013 5:41 pm
by Chuck Tweedy
I don't know if there is with your particular paint.
"Acrylic paint" is a pretty generic term, so you better check what you intend to use.
Re: Blood-red inlay fill needed. Recommendations?
Posted: Tue Sep 03, 2013 1:23 am
by David King
Chuck, That's a good point, I forgot about all the other permutations. What I have is artist's colors in tubes. It's WB and kind of rubbery if you get it on thick.
Bob the inlace stuff looks perfect, probably just polyester resin with some pigment to thicken it up a bit. I wonder if bondo would work as well.
Has anyone tried transtint in bondo?
Re: Blood-red inlay fill needed. Recommendations?
Posted: Tue Sep 03, 2013 2:38 am
by Paul Rhoney
David, this is literally the first time I've seen you ask a question. I thought you knew everything!

Re: Blood-red inlay fill needed. Recommendations?
Posted: Tue Sep 03, 2013 6:35 am
by JC Whitney
David - The lasercut recesses look really intriguing. PLEASE post a pic of the finished product... can't wait to see how it comes out.
Re: Blood-red inlay fill needed. Recommendations?
Posted: Tue Sep 03, 2013 9:49 am
by Chuck Tweedy
I would go the Inlace direction David.
With the artist colors, I see several potential problems:
- Adhesion to the sealer (AKA shellac)
- Having a rubbery layer in the middle of your sandwich
- Discoloration of the epoxy over time, killing the red color
Re: Blood-red inlay fill needed. Recommendations?
Posted: Tue Sep 03, 2013 10:01 am
by Steve Senseney
I have used epoxy with black pigment to fill rosettes.
I don't know if epoxy with red pigment would work for your purposes or not. (or is the same as your resin that was discussed?)
Re: Blood-red inlay fill needed. Recommendations?
Posted: Tue Sep 03, 2013 11:41 am
by Mark Swanson
If you do that, of course alcohol thins and mixes with epoxy so use an alcohol-based dye to tint the epoxy.
Re: Blood-red inlay fill needed. Recommendations?
Posted: Tue Sep 03, 2013 12:36 pm
by John Sonksen
I have done an inlay with acrylic paint mixed into system 3 epoxy on a table before. Besides a little shrinkage due to the large size (about 1 1/2" by 1/8" thick round hole) I haven't had any problems with it, and I made that table over 6 years ago.
Edit: I think I used knife grade epoxy, not system 3. It's used for filling joints on granite countertops.
Re: Blood-red inlay fill needed. Recommendations?
Posted: Wed Sep 04, 2013 1:33 am
by Michael Lewis
Polyester gelcoat, any color you can imagine and sets hard. Talk to the guys at the automotive paint store, or a boat shop.
Re: Blood-red inlay fill needed. Recommendations?
Posted: Wed Sep 04, 2013 1:12 pm
by David King
Gel-coat would be great but I worry about the quantities it's sold in.
I wonder if corian joint filler/glue could work. I'll head over to the hobby shop and see what they have.
There's a white pigmented boat repair epoxy called marine-tex that I can probably color with transtint.
OK gelcoat repair kits exist in 2 oz bottles
http://www.spectrumcolor.com/Items.aspx?key=cat&code=K
Re: Blood-red inlay fill needed. Recommendations?
Posted: Thu Sep 05, 2013 4:22 pm
by David King
Yesterday I tried an experiment using a 10 minute "gel" epoxy (thixotropic) and adding a drop of red transtint. I get a very dark red that's semi transparent. The epoxy had a very hard time hardening up. It's still too soft after 24H.
I'm going to the auto parts store to look for a tube of white bondo and some universal tint.
Re: Blood-red inlay fill needed. Recommendations?
Posted: Thu Sep 05, 2013 4:38 pm
by Bob Gramann
I've done the Inlace in white. It works. It sure smells like polyester.
Re: Blood-red inlay fill needed. Recommendations?
Posted: Thu Sep 05, 2013 8:03 pm
by David King
OK I finally found an online vendor for the inlace. Lots of false starts there as most of the storefronts had been abandoned.
It was available from a place called turtlefeathers.net
Re: Blood-red inlay fill needed. Recommendations?
Posted: Fri Sep 06, 2013 6:24 am
by Charlie Schultz
Re: Blood-red inlay fill needed. Recommendations?
Posted: Fri Sep 06, 2013 1:23 pm
by Tony Costa
Why not actually bleed on the FB and then seal that with lacquer? A little cut on a finger tip, a few flicks, and PRESTO!! Can't get more real than that. Of course, it will darken over time.....