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Forum topic by 18wheelznwood posted 04-15-2021 08:04 PM 475 views 0 times favorited 6 replies Add to Favorites Watch
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143 posts in 111 days

04-15-2021 08:04 PM

Topic tags/keywords: question padauk sanding joining milling

As a way to improve my woodworking skills and familiarize myself with different species of wood, I am making a variety of styles of cutting boards. I figured that I could possibly sell a few along the way to put a little cash in the pocket too. It has been a great learning experience so far as I have now used maple, walnut, cherry, purple heart and now padauk. I’m now making a cutting board from walnut, cherry and padauk. After my final glue up, In only the padauk I noticed a bunch of micro fractures running perpendicular to the grain. The cracks do not run through to the other side. On that side I have some small gaps in the glue lines that I have just filled with epoxy. I don’t think it is a issue with my gluing process, I use copious amounts of glue and get uniform squeeze out. The odd thing is that I can feel the glue lines in the padauk after sanding, but not in the rest of the board. It was planed (cracks present before planing) and sanded with 80, 120, 150, 180 and 220 grit sandpaper. Just wondering if this is a quirk of padauk or possibly a flaw in my process somewhere. Any input would be greatly appreciated.

6 replies so far

View Ocelot's profile


3029 posts in 3719 days

#1 posted 04-15-2021 09:05 PM

Perhaps the padauk wasn’t dry. Did you buy it as a turning blank wth wax on it?

-- I intended to be a woodworker, but turned into a tool and lumber collector.

View 18wheelznwood's profile


143 posts in 111 days

#2 posted 04-15-2021 09:09 PM

Bought it as a S3S 8’ 8/4 board with the end grain sealed with yellow paint.

View MikeUT's profile


207 posts in 2441 days

#3 posted 04-16-2021 06:32 PM

It almost looks like tear-out, especially when you consider that you have the problem on one side but not the other.

How old is your glue? Padauk isn’t extremely oily compared to other exotics but it is compared to domestics. If the glue is old or semi-compromised it might be able to hold initially on the domestics but not on the more oily padauk.

View 18wheelznwood's profile


143 posts in 111 days

#4 posted 04-16-2021 06:58 PM

My glue is only a couple of months old and is kept in my garage but is not subject to below freezing temperatures (sorry Midwest and east coasters). If it was a oil issue with the padauk I’d expect glue separation on both sides of the board.

View Aj2's profile


3838 posts in 2879 days

#5 posted 04-16-2021 07:16 PM

To me thick glue line that creep are a problem. And yes you should try to figure out how to eliminate them.
I would also like to suggest when designing or crafting a wood project you consider what it’s most important purpose will be.
For instance a chair should feel good when you sit in it. If it looks great but is very uncomfortable that’s a fail.
What the main purpose for a cutting board? I think a good cutting board will survive many years of service and look better with age.
So what woods should I consider to achieve this goal.

Good Luck

-- Aj

View 18wheelznwood's profile


143 posts in 111 days

#6 posted 04-18-2021 08:00 PM

I might have figured out what is going on with the padauk. I’m using more of the same 8/4 board that cracked in the cutting board I made. I’m making several cutting boards out of a combination of maple, purple heart and padauk. I batch cut 8 of each wood 1 1/2” strips 26” long. The maple and purple heart stayed very straight over the last couple of days, but the padauk has all developed twists. I’m thinking that is what caused the micro cracks after glue up. So I’m going to leave the newly cut pieces finish doing their thing then run them over the jointer and plane them.

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