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Reply by Rich

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Posted on Hide Glue differences

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Rich

4554 posts in 1008 days


#1 posted 10-24-2018 03:54 AM

First, liquid hide glue is nothing more than hide glue, water and urea. Period. The urea is what lowers the temperature at which the glue remains fluid.

The Franklin Titebond product has several ingredients that stray from that formula. You can find the MSDS online and review them for yourself. I consider it to be the least “pure” of the commercially available liquid hide glues.

Old Brown Glue by Patrick Edwards is the standard. However, it’s relatively pricey at upwards of $20 to $25 for a 20 oz bottle.

I make my own. I buy the hide glue granules from Patrick and, using my own formula of glue, water and urea, cook it to my specifications. I’m not going to share my recipe, however, instructions for the cooking process are available online. Since the critical element is the concentration of urea, which affects the viscosity at room temperature, I used a bottle of Old Brown Glue to gauge the amount and came up with a very effective glue that only costs about $4 per pint.

Hot hide glue has the advantage of a fast tack. However, that’s one of its drawbacks — a short open time. If you need more open time, but faster tack than liquid hide glue, you can add a small amount of urea. It’s also great for glue blocks. I use it all the time for that. A slather of glue and a quick rub and you’ve got a solid joint. I prefer liquid for things like dovetail joints, mortise and tenon, etc. It has another advantage in that it’s slippery and helps joints go together which is really helpful with joints like sliding dovetails.

-- Knowledge is not skill. Knowledge plus ten thousand times is skill. -- Shinichi Suzuki


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