Black epoxy filler for wood, picnic table separate bench plans - With Secrets

Categories: Wood Wine Rack Plans | Author: admin 16.01.2015

Filling cracked or knotty wood without using wood putty may seem a difficult task, but there are a few options. Cracks filled with epoxy can allow you to create an even finish that wouldn't otherwise be possible. Both West System® and System Three offer an ideal option: epoxy tinting pastes in several colors. Small amounts of universal colorants or liquid dye concentrates, up to two percent by weight, will also work, provided you leave a week before sanding and finishing to allow the solvents to escape from the cured epoxy. Fill the void just slightly proud of the surrounding surface so you can sand the cured epoxy flush. Sometimes, cured epoxy will develop a waxy surface film called “amine blush” that can clog sandpaper and inhibit the cure of some finishes. Very thin finishes, like a single coat of Danish oil wiped on and off, may appear shinier over the epoxy.
Those who work with mesquite may appear a little nuts to woodworkers who are used to the likes of cherry, walnut, oak, and similar woods. I have found that the High Temp duct tape works best for sealing the back side of the cracks as it is not as affected by the heat build up and does not leave adhesive on the wood when removed.


I have been a custom furniture maker for 30 years and have worked with mesquite for 20 of those years.
If the crack goes all the way through the wood, put masking tape on the bottom so the epoxy doesn’t drip out before it cures. Prevent problems by scrubbing the cured epoxy with water on a Scotch-Brite® pad prior to final sanding, especially if you plan to use oil-based varnish. Really like the rustic look of mesquite wood, hard and heavy and long lasting – very nice job – Like the lap joints !!!! The sanding dust, called “swarf,” combines with the still-wet glue to fill the crack as you sand, making an instant patch quite close to the color of the wood. You can add epoxy pastes or pigments up to 10 percent by weight, or about four teaspoons per cup of mixed epoxy. With powders, pastes and concentrates, first mix the two parts of the epoxy together thoroughly, then stir in the colorant.
The color can come from wood dust, pigments that either match or contrast with the surrounding wood, or decorative additives, like metallic flake or pearlescent powders. I use polyester (fiberglass) resin instead of epoxy- I’ve had good results and its cheaper.


Another faster and more effecient method of filling voids in mesquite is to use a gap filling super glue to seal the crack or hole, then use masking tabe or duct tape and then pour your epoxy into the gap. When epoxy cures it generates heat which will deteriorate masking tape and let all the epoxy just run through the board onto your bench. Mark, your description of Mesquite was right on, its in an incredibly beautiful wood, with unequaled character.
Also, if you are working with rough stock, fill all your voids first & then run the board thru your planer.
I recently acquired another Arizona wood with similar characteristics (drying cracks, bark inclusions, etc) – Arizona black oak, much more red than red oak, larger varied rays than qtr sawn white oak, with big black streaks throughout.



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