Titebond-liquid-hide-glue-review-online,picture-frame-making-supplies-03,modern-woodworking-chapter-7-answers-error,wood-workshop-furniture-usa - Step 1
Every member of the staff chose the Old Brown as the smelliest. Interestingly, after we finished our non-scientific poll, we found that there was a tie in the race for the most-smelly glue. Non-woodworkers, for the most part, preferred the Old Brown smell and found the Titebond glue more offensive.
More Interesting Comparisons A rub joint, wherein you add glue to two pieces of wood and rub them together until the glue achieves its initial tack, is a benefit of hot hide glue. So, we tested the initial tack with the two glues.
The Titebond product had virtually no perceivable tack. When the Old Brown product was rubbed, you could immediately feel a tack in the process. No, there was not the same tack as with hot hide glue, but you could feel a slight grab as the two pieces were joined. Score one for Old Brown.
However, we remembered that the Old Brown glue was heated and wondered if that preliminary tack was due to the glue gelling as it cooled. To keep the test equal, we heated the Titebond glue and performed the same test.
Our original findings held. The Titebond glue exhibited less tack than was found with the Old Brown Glue. The Most Important Comparisons Smell, color, transparency and initial tack are notable characteristics of these two liquid hide glues, but the important features are how the glue joint holds up and what it takes to reverse glued-up joints. The holding power of the glue joint is of primary importance when building or constructing a project.
If you experience failure, your project is nothing more than a pile of sticks. There are two types of failure as shown in the photo below.
The first is glue failure the left-most pieces , where the glue bond fails and the two pieces come apart directly on the glue line. A second failure is wood failure the right-most pieces in the photo. This is what you hope to find if you have a problem. A wood failure means that the glue bond held and the wood itself gave way to stress. While this is not something you wish for, it happens to a single joint, for the most part, and not throughout your project.
Pieces on the right side, with ragged edges, clearly show wood failure. To test the glues for failure, we assembled 10 sets of joints using Eastern white pine, five joints per glue.
What we found from our basic test was that 60 percent of the failures were in the wood, 30 percent involved partial wood failure and 10 percent were a complete glue-joint failure. What was interesting is that both liquid hide glues experienced identical results. The only difference was in the partial wood failures. More wood fibers were apparent on the Titebond assembly than on the joint glued with Old Brown glue.
Hot hide glue is reversible with heat and moisture. Liquid hide glue has the same characteristic. The simple test we did to discover which product is most-easily reversed was to apply heat from an ordinary hair dryer. In , the Titebond glue separated. The break was about 80 percent glue failure.
Additional patience might have kept the wood preserved. It took only for the Old Brown glue to reverse and that was a true reversal — no wood breakage. A simple test to determine if joint failure is a result of glue failure or wood failure, is to assemble a few joints then whack the assembly with a hammer. Something has to give. Heat from an ordinary hair dryer was all it took to reverse these small joints, but with a more traditional glue joint, a damp cloth and stronger heat source might have been needed.
Option No. Three While we have dissected and evaluated the two chief liquid hide glues on the market, we have yet to mention the possibility of making your own liquid hide glue. If you have a lot of preservatives, how do you know how old the glue is? To begin, you have to make hot hide glue. You can use an electric hot plate, a saucepan, a small glass jar and a small amount of hide glue flakes or pearls, along with salt.
Here are the steps: The first day, mix two parts hide glue flakes with three parts water into the jar and let everything soak. Next, immediately stick the cooked mixture into your refrigerator for the balance of the day quick cooling is key. On morning three, fire up the burner and cook the mixture for another two hours Williams always cooks the glue twice.
Once the batch cooks the second time, you have liquid hide glue. What I enjoy most is that for smaller glueups, you just hold the pieces together for a minute while the glue cools enough to hold it. The process took me right back in my mind to building model cars as a kid. I have used nothing but hide glue for several years. I make my own version of Old Brown Glue by adding some urea to the hot glue mix.
I also add a couple of drops of pure cedar wood oil that acts as a biocide and helps keep fungus at bay. By adding more urea the glue stays open longer and vice versa. People are always telling me you cant make a rubbed joint with liquid hide glue but I have done it.
It is faster with my OBG and faster still with neat hot hide glue. I am also frequently told hide glue is no good in a damp place — not true. Although you can take hide glued parts apart if you have a large contact area then it is very difficult to do.
You also need moisture and heat to be present and it seldom is. I would not use it for woodwork thats to be left out in the open but anywhere under cover it is fine. Hello, I have stumbbled upon this blog just now, searching for some specific information about the effect that urea has on hide glue. Is there a way to determine just how much longer working time would become by adding a certain amount of urea? Thank you!
High wood shop class. I have a large piece in my dining area from that long ago time, glued with hide glue. It looks a lot easier than faffing about with hot pots. I converted to liquid hide glue several years ago and would never go back. What first attracted me to liquid hide glue is the long open time — it takes all the stress out of glue ups.
Guess PVA glues are like the digital miter gauges — the new products make for better woodworking, not skill and practice. The rumour started after WWII, the marketers had a new product and needed to get hide glue out of the way.
The same thing happened when machinery was introduced to the home hobbyist. They advertised all the frustrations and inaccuracies of hand tool woodworking, so people like sheep as they commonly are said baaah and bought machinery.
Anyway I wrote an entire article on hide glue on my blog. I generally use several types of glue, but I am generally switching to OHG for most of my indoor projects. I use Gorilla Glue for outdoor projects I have built gat frames with it, and the are stll in use after more than 10 years outdoors , Nexabond mostly for scrool-work , and thick cyanoacrylate for working with metal-to-wood bonds.
Admittedly deep inside a Pyramid is pretty stable in both temperature and humidity. And you can take as much time as you , come back to it tomorrow, or, even next week, if you feel like it. I learned to love hide glue in my advanced piano technology course where we rebuilt old pianos.
We used to use hide glue crystals and would sometimes put urea crystals to stretch working time but I never knew cedar oil would ward off bacteria. Thanks to Bernard Naish for the great tip. I originally came here after looking up the use of hide glue in wood flooring installation. That way if you needed to replace anything you could either give it a good whack or lightly steam or use a vinegar treatment to separate the glue joint.
I remember reading a book by Arthur C Clark which was set in the far distant future and two characters were amazed at a box one of them had that was actually made of wood….. Excellent article, excellent explanation. Thank you for sharing. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Notify me of follow-up comments by email.
A Glue That Slides I get asked a fair old bit, why do you use liquid hide glue? Instead it acts like lube.
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Romeo777
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