They recommend against letting it freeze, but state it MAY still work.

http://www.titebond.com/ProductLineT...ne=2&prodcat=1

On Sun, 25 Jan 2004 03:46:24 GMT, "Mike in Mystic"
wrote:

The short time I spent in the garage tonight has led me to several posts
(see previous two posted just previously).

As I stated in one of those posts, the garage/shop was about 22 degrees F
when I went out there before turning on the heat. Needless to say, I found
that the glue was frozen just about solid. I checked about 5 bottles, from
half-empty quarts, full quarts, and even a full gallon bottle. These were
either original titebond, titebond II or titebond II extend.

I know the label says that if the glue is frozen it won't affect it's
ability to work, but how long does it take to thaw it out? I got the shop
up to about 70 degrees and put a few of the bottles of glue about 1-2 feet
from the 80,000 BTU propane heater, which was on full blast. I was out
there about 3 hours and none of the bottles seemed to thaw out at all.

I hope I haven't ruined a lot of money's worth of glue (I have probably 5-10
more bottles of it).

Mike