Moisture oozing from lumber - Router Forums
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 30 (permalink) Old 08-21-2009, 05:49 PM Thread Starter
Registered User
 
Ghidrah's Avatar
 
Join Date: Oct 2008
Country: United States
First Name: Ronald
Posts: 1,466
 
Default Moisture oozing from lumber

I picked up some PT SYP this aft, carried it down to my shop laid one end of a 8' 2X6 on the roller and the other end on the TS. The bag on the Delta Vac was full so I took it out to empty it. I connected the vac to the TS picked up the PT to start the saw and saw a large deep brown rust profile in the shape of the 2X6.

I dehumidify the shop 24/7 so all the moisture was escaping from the PT. My shop is about 20 cooler than outside, the PT was warm to the touch. I cleaned and coated the table maybe 2 plus months back when I was done reconnecting the motor pulley.

I normally use Nu Finish on my tables but used some older Turtle wax this time. Does Turtle wax go bad after a couple yrs? I freaked out, quickly sprayed the surface with WD40 and used a synthetic sanding sheet to get most of it out then sprayed it again let it set for a bit and sanded it again to bring it back to normal. wiped it with an old cloth and used sawdust to buff it.

I never saw anything like this happen so quickly before.

Never bite the hand that looks dirty!
The more you know the more you're worth
Ghidrah is offline  
Sponsored Links
Advertisement
 
post #2 of 30 (permalink) Old 08-21-2009, 07:10 PM
Retired Moderator
 
Bob N's Avatar
 
Join Date: Oct 2004
Country: United States
First Name: Bob
Posts: 5,688
     
Default

Very common with PT lumber. I hate the stuff!
Bob N is offline  
post #3 of 30 (permalink) Old 08-21-2009, 07:56 PM
Retired Moderator
 
BigJimAK's Avatar
 
Join Date: Mar 2009
Country: United States
First Name: Jim
Posts: 3,503
     
Default

It's not *only* the moisture, it's wet caustic chemicals!

I won't cut PT on my CI table saw. I used to have an aluminum-topped BT3000 and cut quite a bit of it, for a 12'x24' floating dock, a couple of decks, etc.

Check out that new high-tech cordless router.. wireless and no recharging required!!
BigJimAK is offline  
Sponsored Links
Advertisement
 
post #4 of 30 (permalink) Old 08-22-2009, 09:12 AM Thread Starter
Registered User
 
Ghidrah's Avatar
 
Join Date: Oct 2008
Country: United States
First Name: Ronald
Posts: 1,466
 
Default

I come across PT lumber all the time, it's part of my trade, especially when it concerns sundecks. The ACQ PT is supposed to be better than the older CCA PT, chemical wise but not by much, I don't get the reaction to splinters like the older stuff. The quality of the SYP seems to be worse.

Never bite the hand that looks dirty!
The more you know the more you're worth
Ghidrah is offline  
post #5 of 30 (permalink) Old 08-22-2009, 03:44 PM
Retired Moderator
 
Hamlin's Avatar
 
Join Date: Dec 2005
Country: United States
First Name: Ken
Posts: 3,437
 
Send a message via MSN to Hamlin
Default

This is the problem with PT lumber. You have both the wood moisture plus the caustic chemicals added to it. I let any of my PT lumber sit in the old barn for a yr or two before touching it.

Correct me if I'm wrong but, isn't Turtle wax an auto wax? I see this all the time in the auto sections of any store.

Ken

***Please fill in your profile, at least your location. As this will help us help you better.***

"A VETERAN"
"Whether active duty, retired, national guard or reserve - is someone who, at one point in their life, wrote a blank check made payable to "The United States of America", for an amount of "up to and including my life". That is HONOR, and there are way too many people in this country who no longer understand it." -Author Unknown

Hamlin is offline  
post #6 of 30 (permalink) Old 08-22-2009, 07:14 PM Thread Starter
Registered User
 
Ghidrah's Avatar
 
Join Date: Oct 2008
Country: United States
First Name: Ronald
Posts: 1,466
 
Default

I wish I had the luxury of being able to afford thousands of dollars worth of PT that I could sit on in a barn and rotate for proper cooking.

New growth SYP inherently is unstable for most but exterior PT duties due to it's engineered fast growth properties, it rolls, folds, bends twists and mutilates.

I have gotten hold of some old SYP from old revclaimed Boston Brown stone beams that was very nice.

Yes it is car wax, I used to use it strictly till I had a rep from Wood Worker's Warehouse suggest Nu-Finish as a superior protection. I ran out of Nu Finish, still had the Turtle wax so used it.

Yrs ago I noticed that leaving something on the table surface for any extended period would produce the effect even with protection, but never saw that kind of damage after 10 or so minutes a month maybe.

Never bite the hand that looks dirty!
The more you know the more you're worth
Ghidrah is offline  
post #7 of 30 (permalink) Old 08-22-2009, 07:33 PM
Forum Contributor
 
AxlMyk's Avatar
 
Join Date: Jun 2006
Country: United States
First Name: Mike
Posts: 3,165
   
Default

Quote:
Originally Posted by Ghidrah View Post
I normally use Nu Finish on my tables but used some older Turtle wax this time. Does Turtle wax go bad after a couple yrs? I freaked out, quickly sprayed the surface with WD40 and used a synthetic sanding sheet to get most of it out then sprayed it again let it set for a bit and sanded it again to bring it back to normal. wiped it with an old cloth and used sawdust to buff it.
Turtle wax is for cars. Furniture wax is for tools. WD40 isn't a rust remover. Try Bar Keepers Friend.

.
Never, under any circumstances, combine a sleeping pill and a laxative on the same night.

Mike - Retired FoMoCo Tradesman
My Gallery @ http://www.routerforums.com/axlmyks-stuff/
AxlMyk is offline  
post #8 of 30 (permalink) Old 08-23-2009, 11:28 AM
Retired Moderator
 
Hamlin's Avatar
 
Join Date: Dec 2005
Country: United States
First Name: Ken
Posts: 3,437
 
Send a message via MSN to Hamlin
Default

I don't nor will I ever place PT on any of my tables. I cut them with my worm drives/circular saws or jig saw. The left overs go into the barn. I don't even store them anywhere close to my reg. wood pile.

I don't use WD40 for any of my tools. I have several different types of rust protection I use. I usually get them from Grizzly.

Ken

***Please fill in your profile, at least your location. As this will help us help you better.***

"A VETERAN"
"Whether active duty, retired, national guard or reserve - is someone who, at one point in their life, wrote a blank check made payable to "The United States of America", for an amount of "up to and including my life". That is HONOR, and there are way too many people in this country who no longer understand it." -Author Unknown

Hamlin is offline  
post #9 of 30 (permalink) Old 08-24-2009, 10:39 AM Thread Starter
Registered User
 
Ghidrah's Avatar
 
Join Date: Oct 2008
Country: United States
First Name: Ronald
Posts: 1,466
 
Default

Axlmyk,
Call WD40 whatever you want, I've found nothing better at loosening the rust from my tables. The synthetic sanding material, close to the dobie pads my wife uses for dishes, (doesn't mar the table surface) in combo with the WD40 removes/lifts the rust from the table. I wipe with old rags till dry then use rubbing alcohol to remove the WD40 then UI use NU-Finish.

I had used Turtle wax for yrs before Nu-Finish with no ill results, I just had to apply it more often. Nu-Finish is also a Car polish, I apply it a couple 3 times a yr. depending on how much work the TS has seen.

Everyone has a modicum of success with many different products, the only thing I've come across with most consensus is to stay away from products using silicon as a component to the wax product because it can transfer the silicon to the wood.

Never bite the hand that looks dirty!
The more you know the more you're worth
Ghidrah is offline  
post #10 of 30 (permalink) Old 08-24-2009, 01:02 PM
Registered User
 
nikki1492's Avatar
 
Join Date: May 2009
Country: United States
First Name: Barb
Posts: 268
 
Default

hey to you all,

What is PT lumber? It sound horrid and I want to stay away from it.... but since I don't know what it is....

Thanks

"Later mon"

Barb
nikki1492 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Router Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
New to woodworking...where to buy lumber? embo5 Starting Off 14 11-18-2013 09:43 PM
Oak lumber moisture? wyatt earp Starting Off 9 08-20-2008 09:00 AM
HD and their slim choices of lumber.... Hamlin Lobby 6 07-07-2006 04:16 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome