Titebond III, Gorilla glue, Liquid Nails... - AVS Forum
Forum Jump: 
 
Thread Tools
Old 06-24-2007, 11:34 AM - Thread Starter
Senior Member
 
Scottyman's Avatar
 
Join Date: Sep 2005
Location: Maine. Yes, it's a state.
Posts: 262
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 10
I searched this forum, but there are no objective comparisons as to which glue is better for building with 3/4" MDF.
Which glue is the strongest and will allow at least 10 minutes or longer of working time?
I checked out the Liquid Nails site and they give their Heavy Duty Construction Adhesive LN903 a shear strength of 240psi after 1 week, but their LN901 has a rating of 425psi after 1 week. (Home Depot guy said the LN903 is best)
The Titebond site is being a pain in the a## so I can't check if they have specs.
Which has the strongest bond--apart from 2 part epoxy glues?

I will be gluing and screwing btw. No clamps.

Thanks

"They that would give up essential liberty for a little temporary safety deserve neither liberty nor safety. - Benjamin Franklin
Scottyman is offline  
Sponsored Links
Advertisement
 
Old 06-24-2007, 11:53 AM
Member
 
Luke G's Avatar
 
Join Date: Feb 2007
Posts: 143
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I've used liquid nails, wood glue, and a few others, and I prefer Gorilla Glue. I highly recommend using nitrile gloves when you deal with it though, unless you want to be sanding it off of your hands.

I build all my enclosures with gorilla glue and screws. I remove the screws once the glue is set. I've actually gone back and destroyed enclosures that were no longer needed. The MDF would separate before the glue, Gorilla Glue is no joke. Just lightly dampen both surfaces with a wet rag before gluing the two surfaces together and the glue will soak in.

Also, remember Gorilla Glue does foam up so don't use too much. If you do it is fairly easy to remove excess with a scraper when it dries.
Luke G is offline  
Old 06-24-2007, 12:06 PM
AVS Special Member
 
thylantyr's Avatar
 
Join Date: May 2004
Posts: 3,887
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 18
MDF has a skin layer, this layer will peel off before the glue joint fails regardless of what
glue you use. Use yellow wood glue because it's easy to clean up with water. You can seal
the enclosure with it also by making a bead with your finger or you can use liquid nails.
Gorilla glue makes the biggest mess because it's expanding foam. It's ideal for specific
applications. It's a good idea to use screws with MDF because of that skin layer, with
screws, the wood is held in place better, but if you want to do a paint job it requires
more wood to cover the holes and have then no show through.



The storm was gone, but dark clouds still hung around
The perfect setting for things to come......

thylantyr is offline  
Old 06-24-2007, 12:29 PM
Advanced Member
 
BTT917's Avatar
 
Join Date: Nov 2005
Posts: 689
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Look for the Titebond Extend wood glues. Gives 15 minutes of open time.
BTT917 is offline  
Old 06-24-2007, 12:54 PM
Member
 
RAWAC's Avatar
 
Join Date: Feb 2007
Location: Surrey BC
Posts: 104
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
http://www.taunton.com/finewoodworki....aspx?id=28853

Worth a read.

Have to love that good old yellow glue.

They tested Six types of glue (waterproof and standard PVA, liquid and hot hide, slow-set epoxy and polyurethane) on Maple, Oak and Ipe. (sorry, no MDF )

Total of 162 samples(!) were sent to a university engineering lab and busted. (carefully and precisely, of course)

Results were Waterproof PVA best at 2024 lbs avg, then epoxy (1994) PVA (1924) Liquid hide (1595) hot hide (1531) and polyurethane (1164)

Yep, they were surprised!
RAWAC is offline  
Old 06-24-2007, 01:21 PM
AVS Special Member
 
tundrSQ's Avatar
 
Join Date: Nov 2006
Location: Vermont
Posts: 2,217
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 12
why no clamps? I prefer clamps, biscuits and brad nails. As for the glue, I prefer titebond 2. Using 3 only gives you a more waterproof seal, and I expect your sub to stay dry

Tim
tundrSQ is offline  
Old 06-24-2007, 01:47 PM
Member
 
RAWAC's Avatar
 
Join Date: Feb 2007
Location: Surrey BC
Posts: 104
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Yes I too brad then clamp.
RAWAC is offline  
Old 06-24-2007, 03:25 PM
AVS Special Member
 
deneb's Avatar
 
Join Date: Mar 2007
Location: Pac NW, Seattle area
Posts: 1,089
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
No issues with plain ol' Elmers wood glue (yellow glue) with my DIY build. Cleans up real easy as well.

FWIW, probably easier to use clamps than screws IMO.
deneb is offline  
Old 06-24-2007, 03:56 PM - Thread Starter
Senior Member
 
Scottyman's Avatar
 
Join Date: Sep 2005
Location: Maine. Yes, it's a state.
Posts: 262
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 10
Thanks for all the replies.

About Titebond II Extend. Amazon says "Assembly time: 3-5 minutes".
Rockler.com says "15 minutes of open time". The Titebond site is still giving me an error
when trying to access any of the links--so I don't know what to believe.

A 32 oz bottle would be nice, but it's only offered in a pint or a gal. for the Extend II. 2 pints will have to do I guess.

"They that would give up essential liberty for a little temporary safety deserve neither liberty nor safety. - Benjamin Franklin
Scottyman is offline  
Old 06-24-2007, 08:54 PM
AVS Special Member
 
thylantyr's Avatar
 
Join Date: May 2004
Posts: 3,887
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 18
Yellow wood glue drying time is affected by temperature. Cold day, longer time. Hot
day, you have to work faster. :hehe:



The storm was gone, but dark clouds still hung around
The perfect setting for things to come......

thylantyr is offline  
Old 06-25-2007, 08:47 AM
AVS Special Member
 
Lindahl's Avatar
 
Join Date: Dec 2005
Posts: 1,745
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Liked: 18
Quote:
Originally Posted by thylantyr View Post

Yellow wood glue drying time is affected by temperature. Cold day, longer time. Hot
day, you have to work faster. :hehe:

VERY FAST - like 3-4 minutes! I had to bust some joints because they dried too fast before I could get everything nice and aligned. I agree that Gorilla Glue is more hassle than its worth. Tightbond worked great for me.
Lindahl is offline  
 
Thread Tools


Forum Jump: 

Posting Rules  
You may not post new threads
You may not 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 Off
Refbacks are Off