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white areas on the crossgrain

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Forum topic by yrob posted 12-20-2012 05:31 PM 643 views 0 times favorited 13 replies Add to Favorites Watch
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yrob

340 posts in 2319 days


12-20-2012 05:31 PM

Topic tags/keywords: question cherry finishing sanding

what are those white areas on the crossgrain of the cherry ?
its typically in the corner. could this be discoloration from the glue ?

this has been sanded to 220 grit.

-- Yves


13 replies so far

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Mark Smith

497 posts in 707 days


#1 posted 12-20-2012 05:35 PM

Sap wood. The inner core of the tree is dark and the outter part is lighter. Your board just cuts out into the sap wood.

-- Mark Smith, Tracy, CA., http://www.markscustomwoodcrafts.com

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DS

2131 posts in 1087 days


#2 posted 12-20-2012 06:54 PM

While the sapwood of Cherry IS white and DO I see it crossing the outside corners of the Cherry, there also appears to be white smudges in the photo that looks like glue stains to me. It even appears to smudge across a couple different wood species there if I am seeing it correctly. (Could be light in the camera lens – hard to tell exactly)

End grain is quite porous, so the glue can really go deep. You may be sanding quite a bit to get these out.

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251

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yrob

340 posts in 2319 days


#3 posted 12-20-2012 07:23 PM

Ok. thanks for the feedback. I thought I had selected boards with no sapwood but apparently I must have missed that little bit of sapwood on the side of one cherry board..

Yes, I am going to sand more. That other smudge is probably glue. Each time I glue up a cutting board, I have glue flying everywhere in the heat of the moment of trying to quickly glue up 24 strips. Still have to figure out the optimal way..

-- Yves

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Grandpa

3159 posts in 1342 days


#4 posted 12-20-2012 07:32 PM

Wash it off with a clean wet rag. Wash it a couple of times.

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Mark Smith

497 posts in 707 days


#5 posted 12-20-2012 08:00 PM

You may have selected boards with no visible sap wood, but once you cut into them it was there. Look at the walnut cutting board below. I didn’t see the sapwood until I planed the glued up cutting board. It was visible on the other side of the board, but I had done the glue up so one side would be all dark wood, but that didn’t work out.

-- Mark Smith, Tracy, CA., http://www.markscustomwoodcrafts.com

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Grandpa

3159 posts in 1342 days


#6 posted 12-20-2012 08:15 PM

Yes Mark but look at the photo. The white goes across the joint to the other wood also. This is applied and not sapwood.

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Mark Smith

497 posts in 707 days


#7 posted 12-20-2012 09:44 PM

Grandpa, I don’t think those are the white marks he’s talking about. He’s talking about the sapwood in the corners of the cherry pieces.

-- Mark Smith, Tracy, CA., http://www.markscustomwoodcrafts.com

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DS

2131 posts in 1087 days


#8 posted 12-20-2012 10:00 PM

Mark, those are some mighty fine Walnut racing stripes in that board of yours! ;-D
Wood has a way of asserting its “natural” charms I suppose.

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251

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RussellAP

2954 posts in 953 days


#9 posted 12-20-2012 10:01 PM

You might be able to fix that sap wood with a little Gel Stain and a Q-tip. At least make it more defined against the sap wood. I’d tape the sapwood first. The other looks like a bit of glue or something. I’d try a piece of 180 by hand and see if it sands out. Go easy.

-- A positive attitude will take you much further than positive thinking ever will.

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DS

2131 posts in 1087 days


#10 posted 12-20-2012 10:03 PM

Yves, you might try gluing up in two stages to help take off some pressure during the glue up.
Half as many strips at a time, then glue two halves together.

There is a practical limit to how much glue one can sling about at a time before joints begin to fail.
I think I am worst when it comes to glue slinging.

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251

View Mark Kornell's profile

Mark Kornell

495 posts in 1198 days


#11 posted 12-21-2012 04:25 AM

Mark, there’s nothing wrong with that cutting board – the sapwood stripes add a ton of character

-- Mark Kornell, Kornell Wood Design

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Grandpa

3159 posts in 1342 days


#12 posted 12-21-2012 04:07 PM

If that is all you are concerned with, then realize you are dealing with wood and that is what makes it wood. Some things you live with.

View Mark Smith's profile

Mark Smith

497 posts in 707 days


#13 posted 12-21-2012 04:53 PM

Iguana I didn’t mean to imply there was anything wrong with it. It actually sold for a nice price. I was just pointing out to the original poster here that the sap wood only showed up after I planed and sanded the board. He was saying basically the same thing happened to him as the sapwood wasn’t visible when he selected the boards for his cutting board.

-- Mark Smith, Tracy, CA., http://www.markscustomwoodcrafts.com

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