The Forestry Forum is sponsored in part by:

iDRY Vacuum Kilns


Forestry Forum
Sponsored by:


TimberKing Sawmills



Toll Free 1-800-582-0470

LogRite Tools



Norwood Industries Inc.




Your source for Portable Sawmills, Edgers, Resaws, Sharpeners, Setters, Bandsaw Blades and Sawmill Parts

EZ Boardwalk Sawmills. More Saw For Less Money!

STIHLDealers.com sponsored by Northeast STIHL


Woodland Sawmills

Peterson Swingmills

 KASCO SharpTech WoodMaxx Blades

Turbosawmill

Sawmill Exchange

Michigan Firewood, your BRUTE FORCE Authorized Dealer

Baker Products

ECHO-Bearcat

iDRY Wood Lumber Vacuum Drying for everyon

Nyle Kiln Dry Systems

Chainsawr, The Worlds Largest Inventory of Chainsaw Parts

Smith Sawmill Service



Author Topic: Drying Holly  (Read 825 times)

0 Members and 1 Guest are viewing this topic.

Offline Rwill114

  • member
  • *
  • Posts: 4
  • I'm new!
    • Share Post
Drying Holly
« on: November 24, 2019, 09:07:56 AM »
I have a lot of holly trees available for milling so I chose one of the less desirable for drying practice. I know drying holly has been touched many times but I havenít seen anything along these lines. Just for background, the tree was felled, milled, stacked and started air pre drying all in the same day. Milling was done under cover so no sun ever saw the planks. The stack was about the size of the box fan I am using to pre dry. Temperature and humidity were about 55 degrees at 40 percent humidity with air speed of about 200ft/min. From the picture you can see blue staining everywhere but the where the stickers were. Suggestions/explanations?

FYI the photo is after one week of drying, the board has also been planned so this is beyond the surface.




Offline doc henderson

  • Senior Member x2
  • *****
  • Posts: 7908
  • Age: 61
  • Location: Hutchinson, Ks
  • Gender: Male
  • Evil Prevails when Good Men Standby and Do Nothing
    • Share Post
Re: Drying Holly
« Reply #1 on: November 24, 2019, 10:35:03 AM »
Welcome to the forum.  It appears the blue stain is after the fact as it spares the wood under the stickers.  hmmmm.  @GeneWengert-WoodDoc .  sounds like you tried to get it done quick.  unless not enough airflow.  how tall/thick were your stickers.  air flow across the stack?
timberking B 2000, 277c track loader, PJ 32 foot gooseneck, 1976 F700 state dump truck, JD 850 tractor.  2007 Chevy 3500HD dually, home built log splitter 18 horse 28 gpm with 5 inch cylinder and 32 inch split range with conveyor 12 volt tarp motor

Offline kelLOGg

  • Senior Member x2
  • *****
  • Posts: 2523
  • Age: 77
  • Location: Durham, NC
  • Gender: Male
  • More is better but enough is best
    • Share Post
Re: Drying Holly
« Reply #2 on: November 24, 2019, 11:46:28 AM »
To preserve the whiteness of holly it should be kiln dried immediately after cutting. No air drying.
I think I got that right but check it out anyway.
Cook's MP-32, 20HP, 20' (modified w/ power feed, up/down, loader/turner)
DH kiln, CatClaw setter and sharpener, tandem trailer, log arch, tractor, thumb tacks

Offline btulloh

  • Senior Member x2
  • *****
  • Posts: 4203
  • Age: 69
  • Location: Midlothian, VA
  • Gender: Male
  • I never met an air conditioner I didn't like
    • Share Post
Re: Drying Holly
« Reply #3 on: November 24, 2019, 12:29:19 PM »
To preserve the whiteness of holly it should be kiln dried immediately after cutting. No air drying.
I think I got that right but check it out anyway.
That has been my experience.
It also needs to be sawn ASAP after felling because the logs will stain almost immediately.
I have seen spalted holly that looks real good turned, but if you want the white-white holly, get it processed immediately if not sooner.
HM126

Offline Don P

  • Senior Member x2
  • *****
  • Posts: 8766
  • Location: Southwestern VA
  • Gender: Male
    • Share Post
    • Calculator Index
Re: Drying Holly
« Reply #4 on: November 24, 2019, 01:32:55 PM »
Usually reverse sticker stain is from dry stickers pulling moisture and the rest of the surface drying too slow. I'd bet that is an enzyme stain rather than bluestain, but either is from going too slow. 
The future is a foreign country, they will do things differently there - Simon Winchester

Offline Rwill114

  • member
  • *
  • Posts: 4
  • I'm new!
    • Share Post
Re: Drying Holly
« Reply #5 on: November 24, 2019, 08:23:06 PM »
The stickers are 1.5 in, thatís what I use in my Dh kiln. The tricky thing is  I tried something new, I put painters tape on the stickers to try to avoid direct contact with the sticker (thought maybe that would help with discoloring). Tape seems relatively waterproof but Iím not sure while itís in constant contact. Guess Iíll have to try again with another small test tree and go straight to the kiln.

Offline Don P

  • Senior Member x2
  • *****
  • Posts: 8766
  • Location: Southwestern VA
  • Gender: Male
    • Share Post
    • Calculator Index
Re: Drying Holly
« Reply #6 on: November 24, 2019, 09:40:25 PM »
Got me scratching my head ???, learned something new.
Quote
Painterís tape is slightly thicker than ordinary masking tape, so as not to tear and leave remnants on surfaces. High-quality versions are also embedded with sponge-like polymers to absorb moisture, thereby preventing bleeding onto unpainted areas.
The future is a foreign country, they will do things differently there - Simon Winchester

Offline scsmith42

  • Senior Member x2
  • *****
  • Posts: 5594
  • Age: 61
  • Location: New Hill, NC
  • Gender: Male
  • He who dies with the most toys... WINS!!!
    • Share Post
    • Whispering Pines Farm
Re: Drying Holly
« Reply #7 on: November 24, 2019, 11:43:11 PM »
The stickers are 1.5 in, thatís what I use in my Dh kiln. The tricky thing is  I tried something new, I put painters tape on the stickers to try to avoid direct contact with the sticker (thought maybe that would help with discoloring). Tape seems relatively waterproof but Iím not sure while itís in constant contact. Guess Iíll have to try again with another small test tree and go straight to the kiln.
1.5Ē sticker thickness will require some very large CFM fans to provide airflow.  Industry standard sticker thickness is 3/4Ē.
Peterson 10" WPF with 65' of track
Smith - Gallagher dedicated slabber
Tom's 3638D Baker band mill
and a mix of log handling heavy equipment.

Offline GeneWengert-WoodDoc

  • Senior Member x2
  • *****
  • Posts: 3152
  • Location: Bishop, GA
  • Gender: Male
  • Author of "Sawing Hardwood Lumber"
    • Share Post
    • Book on Sawing hardwood Lumber
Re: Drying Holly
« Reply #8 on: November 26, 2019, 06:58:02 AM »
Holly must be dried immediately after sawing a fresh log.  It must be dried  24 hours a day, which is why air drying does not work.  Holly is very difficult to keep white as a small time at high humidities when above 40% MC results in the enzymatic oxidation stain.

Indeed, the dry stickers were able to dry the wood fast enough, so there is no stain.

You may be able to whiten the wood with oxalis acid, also called wood bleach, but this is o oh a surface treatment.
Gene - Author of articles in Sawmill & Woodlot and books: Drying Hardwood Lumber; VA Tech Solar Kiln; Sawing Edging & Trimming Hardwood Lumber. And more

Offline Rwill114

  • member
  • *
  • Posts: 4
  • I'm new!
    • Share Post
Re: Drying Holly
« Reply #9 on: November 26, 2019, 07:43:06 AM »
Thanks for all the replyís. As my current dh kiln has a back log of wood to dry at a different schedule, I think Iím going to make plans for a miniature dh kiln, hopefully almost portable. If I go down this route, Iíll post pics of the build and the drying results. 

Offline GeneWengert-WoodDoc

  • Senior Member x2
  • *****
  • Posts: 3152
  • Location: Bishop, GA
  • Gender: Male
  • Author of "Sawing Hardwood Lumber"
    • Share Post
    • Book on Sawing hardwood Lumber
Re: Drying Holly
« Reply #10 on: November 26, 2019, 06:05:01 PM »
When using a DH kiln to dry holly, you need to obtain the correct low humidity within an hour.  There is no tolerance for having the kiln heat up until the DH compressor starts working.  You also need to make sure you have enough horsepower to remove moisture fast enough.
Gene - Author of articles in Sawmill & Woodlot and books: Drying Hardwood Lumber; VA Tech Solar Kiln; Sawing Edging & Trimming Hardwood Lumber. And more

Offline scsmith42

  • Senior Member x2
  • *****
  • Posts: 5594
  • Age: 61
  • Location: New Hill, NC
  • Gender: Male
  • He who dies with the most toys... WINS!!!
    • Share Post
    • Whispering Pines Farm
Re: Drying Holly
« Reply #11 on: October 08, 2021, 04:13:54 PM »
When using a DH kiln to dry holly, you need to obtain the correct low humidity within an hour.  There is no tolerance for having the kiln heat up until the DH compressor starts working.  You also need to make sure you have enough horsepower to remove moisture fast enough.
Gene, what do you recommend for a drying schedule for holly in a DH kiln?
Peterson 10" WPF with 65' of track
Smith - Gallagher dedicated slabber
Tom's 3638D Baker band mill
and a mix of log handling heavy equipment.

Offline K-Guy

  • Senior Member
  • ****
  • Posts: 889
  • Location: Bangor, ME
  • Gender: Male
    • Share Post
    • http://www.nyle.com/
Re: Drying Holly
« Reply #12 on: October 11, 2021, 08:45:49 AM »

If you are using a Nyle L53 or L200, I would recommend using the same schedule as for soft maple. They aren't the same but close enough.
Nyle Kiln Sales & Service
"He has all the virtues I dislike and none of
 the vices I admire." -Winston Churchill

Offline GeneWengert-WoodDoc

  • Senior Member x2
  • *****
  • Posts: 3152
  • Location: Bishop, GA
  • Gender: Male
  • Author of "Sawing Hardwood Lumber"
    • Share Post
    • Book on Sawing hardwood Lumber
Re: Drying Holly
« Reply #13 on: October 15, 2021, 09:52:00 PM »
I also suggest using the soft maple schedule, except use as low a temperature as possible.

Remember, you just achieve the required humidity within a few hours after sawing to get the whitest wood.  If the settings are for low humidity, but the actual humidity is higher, bad news.
Gene - Author of articles in Sawmill & Woodlot and books: Drying Hardwood Lumber; VA Tech Solar Kiln; Sawing Edging & Trimming Hardwood Lumber. And more

Offline Don P

  • Senior Member x2
  • *****
  • Posts: 8766
  • Location: Southwestern VA
  • Gender: Male
    • Share Post
    • Calculator Index
Re: Drying Holly
« Reply #14 on: October 16, 2021, 08:47:51 AM »
Lo temp, low humidity, dumping lots of water. Is a fanshed type of setup better to start?
The future is a foreign country, they will do things differently there - Simon Winchester

Offline scsmith42

  • Senior Member x2
  • *****
  • Posts: 5594
  • Age: 61
  • Location: New Hill, NC
  • Gender: Male
  • He who dies with the most toys... WINS!!!
    • Share Post
    • Whispering Pines Farm
Re: Drying Holly
« Reply #15 on: October 16, 2021, 11:34:02 AM »
Gene / Stan:  Thanks for the insight.  I'm thinking that for holly I'd want to only load 1K bd ft or so in a Nyle L200 in order to bring the RH% down as quickly as possible.  Maybe even less?
Peterson 10" WPF with 65' of track
Smith - Gallagher dedicated slabber
Tom's 3638D Baker band mill
and a mix of log handling heavy equipment.

Offline K-Guy

  • Senior Member
  • ****
  • Posts: 889
  • Location: Bangor, ME
  • Gender: Male
    • Share Post
    • http://www.nyle.com/
Re: Drying Holly
« Reply #16 on: October 20, 2021, 08:07:09 AM »
Lo temp, low humidity, dumping lots of water. Is a fanshed type of setup better to start?


Only if you don't have too much air, then case hardening could happen.
Nyle Kiln Sales & Service
"He has all the virtues I dislike and none of
 the vices I admire." -Winston Churchill

Offline K-Guy

  • Senior Member
  • ****
  • Posts: 889
  • Location: Bangor, ME
  • Gender: Male
    • Share Post
    • http://www.nyle.com/
Re: Drying Holly
« Reply #17 on: October 20, 2021, 08:08:31 AM »
I'm thinking that for holly I'd want to only load 1K bd ft

That is being very safe but you can probably load more. I would watch the first load at 1K and adjust up from there.
Nyle Kiln Sales & Service
"He has all the virtues I dislike and none of
 the vices I admire." -Winston Churchill

Offline scsmith42

  • Senior Member x2
  • *****
  • Posts: 5594
  • Age: 61
  • Location: New Hill, NC
  • Gender: Male
  • He who dies with the most toys... WINS!!!
    • Share Post
    • Whispering Pines Farm
Re: Drying Holly
« Reply #18 on: October 21, 2021, 09:03:06 PM »
Thanks Stan!
Peterson 10" WPF with 65' of track
Smith - Gallagher dedicated slabber
Tom's 3638D Baker band mill
and a mix of log handling heavy equipment.


Share via delicious Share via digg Share via facebook Share via linkedin Share via pinterest Share via reddit Share via stumble Share via tumblr Share via twitter

xx
Drying Holly

Started by Woodwalker on Drying and Processing

4 Replies
1873 Views
Last post December 27, 2008, 10:39:19 AM
by Den Socling
xx
Drying Holly.

Started by The WoodYard on Drying and Processing

6 Replies
1856 Views
Last post January 02, 2014, 12:14:28 AM
by WDH
xx
Sawing/Drying Holly

Started by pinehillstacker on Sawmills and Milling

4 Replies
757 Views
Last post June 17, 2019, 05:53:10 PM
by pinehillstacker
xx
Holly Daze - biggest holly log I've seen - now what?

Started by btulloh on Sawmills and Milling

12 Replies
1869 Views
Last post January 05, 2016, 09:31:47 AM
by Raym
 


Powered by EzPortal