Thinning Yellow Waterproof Wood Glue?

I have in my shop a gallon jug of the yellow waterproof casein wood glue used by professionals. I am a professional wooden body restorer of early brass era antique autos, but I know nothing about revitalizing 6 year old glue which is thickening in the jug.

It is like syrupy, slow pouring out of the bottle, and very sticky. There are no clumps nor lumps. It still dries and glues like normal after application. It takes lots of soap to get your fingers clean after use. The fella I use to get it from died 4 years ago. He purchased it in 5 gallon pails. He manufactured those Georgian columns for homes. Some of those were 3 feet in diameter (each) x 15 to 20 foot tall. I want to use the old glue as it works. But I need it thinned down without harming the adhesion. Anyone know how to do this?

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April 2, 20180 found this helpful

I would write to the manufacturer first. If you cant find out who manufactures it, take small samples and thin out with water or other thinner to see if it still works.

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April 3, 20180 found this helpful

Believe it to be titebond III pva. I have read those articles on line. I was hoping to find a professional wood worker on this forum who has dealt with this type of glue.


Article said to thin with no more than 5% H2O. cold water and shake and stir. If it becomes stringy then throw it out.

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April 5, 20180 found this helpful

Since you have no information about this glue, I believe you will have to go to some "experts" on either antique car restoration or the professional woodworker's clubs.

  • I have found that most people really like to help their fellow man when it is an unusual question and in the same or similar field.
  • With that in mind, you may wish to ask your question at this site:
  • You might also ask your question here as they may not know the name but may be able to offer suggestions for thinners.
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Crafts WoodworkingApril 2, 2018
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