Re: O.T.---Wood Glue

Posted by spacechem on December 09, 2009 at 19:22:01 from (202.103.229.139):

In Reply to: O.T.---Wood Glue posted by Jiles on December 08, 2009 at 19:22:59:

Jiles-
At the risk of piling on yet another reply, I think I might be able to sort out all of these responses, as I have used almost all the ones mentioned.

1. Part of the challenge of woodworking is to design joints so that you don't rely only on the glue to hold two pieces together. Over time, with the natural wood movement, any glue joint will fail. A good joint will merely need taken apart, cleaned up, and reglued for another 50 years service.

2. For most indoor woodworking, the Titebond with the red top will do just fine, though it needs to be kept fresh. Buy from some place where you can reasonably assume they have a good turnover of stock, and write the date on the bottle. In only a few months, you can notice a change in viscosity. Throw it out and buy fresh. Blue top is "waterproof", meaning it can't be reversed with water the same way the redtop supposedly can. Nothing wrong with the stuff, I just think other adhesives are better for outdoors- read on.

3. For outdoor work, and for any time I needed a longer open time for a complicated glueup, I use Gorilla Glue. I've never found the "expansion" a problem- it only means I used too much. It's easy to clean off, won't interfere with finishes like yellow glue, and it's very strong. Downside is, if you get it on your fingers, Mineral Spirits will remove it if you can wipe it off immediately, otherwise you'll have to wait for it to wear off. I've tried other brands of polyurethane glue, but keep coming back to Gorilla Glue.

4. West System epoxy is a very fine product, but the mixing is messy and wasteful unless you have a particular need (you typically find it in marine stores- that should tell you something), so I rarely used it.

5. Hide glue is smelly and messy, but I've used it for veneering. Luthiers use it because it's reversible.

Bottom line, the better you are with your woodworking skills, the less it matters what glue you use. If you're a sloppy woodworker, no glue is going to make you into a good one.

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