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Bombarde16

Eastern redbud bowl

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Leaving the pith can sometimes cause cracks deep into good wood that otherwise wouldnt happen if turned away.  Its iffy, depends on the wood.  Have fun with it.

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What kind of paint was that? Waterbase acrylic? Would have been better to simply bag the rough turned blank until it was dry enough.

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On 8/31/2019 at 11:30 AM, Gary Beasley said:

What kind of paint was that? Waterbase acrylic? Would have been better to simply bag the rough turned blank until it was dry enough.

Correct. Leftover interior house paint from gawdonlyknowswhat.

Drying a rough piece in bags can be a tricky endeavor. Plastic bags (obviously) don't allow any moisture to escape.  Within a week or two, your blank with be covered in rank, sticky mold and will smell awful. Paper bags do allow moisture to escape, yet somewhat slower than if the blank was just out in the open air. I tried paper bags a few years ago and sometimes it worked...sometimes it didn't. Sometimes even the paper bag held in so much moisture that it started to grow mold itself.

In the abstract, painting the surface is preferred because it plugs up the pores (slowing the transit of moisture) but doesn't leave mold anywhere dark and damp to work its moldy awfulness.

In this case, however, nothing would have saved this blank. (Except perhaps a vacuum kiln?) As one other poster mentioned, redbud is just a wild and wonky wood. Lesson learned.

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On 8/31/2019 at 9:27 AM, wtnhighlander said:

So, instead of a bowl, you have a dugout canoe. Still a success!

So, instead of a bowl, you have a dugout canoe. Still a success!

You're stuttering.

  • Haha 1

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3 hours ago, Bombarde16 said:

Correct. Leftover interior house paint from gawdonlyknowswhat.

Drying a rough piece in bags can be a tricky endeavor. Plastic bags (obviously) don't allow any moisture to escape.  Within a week or two, your blank with be covered in rank, sticky mold and will smell awful. Paper bags do allow moisture to escape, yet somewhat slower than if the blank was just out in the open air. I tried paper bags a few years ago and sometimes it worked...sometimes it didn't. Sometimes even the paper bag held in so much moisture that it started to grow mold itself.

In the abstract, painting the surface is preferred because it plugs up the pores (slowing the transit of moisture) but doesn't leave mold anywhere dark and damp to work its moldy awfulness.

In this case, however, nothing would have saved this blank. (Except perhaps a vacuum kiln?) As one other poster mentioned, redbud is just a wild and wonky wood. Lesson learned.

Looking at the picture the first problem is leaving the pith on the bowl. This is the epicenter for cracking and keeps the wood from relieving the drying stresses without splitting. The house paint is another thing I would not use, acrylic paint will pass moisture fairly easy. The point behind the bagging is to keep the moisture gradient through the wood fairly even. You may have to change the bags out often to prevent mold but you do what it needs done. If the outside of the wood dries too fast and shrinks on to the inside splitting is how it balances the forces. 

Good luck on your next bowl, may it make something nice.

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