I have a large bottle of Gorilla glue that is almost to thick to use anymore. I would like to try and save it. Anyone know what to thin it with and what the ratio might be? I tried a google search but there is not much info out there about it.

Email the manufacturer. Mention that you were a little disappointed that it thickened so soon. And how to fix that.

Likely get a new one in the mail.

Find the MSDS(easy to find online) of your flavor of glue and see if they can figure it out without neutralizing through glue.

I would put a little in small container or a dish and give it a shot in the microwave. See what happens

That was something that always bothered me with Gorilla Glue even in the smaller bottles. Once you opened it, you'd better use it in a month or two.

I did a little search and found a boatbuilder in the UK who thins it with Xylene. He saw no difference in adherence, lifespan or strength. Might give it a try. Other suggestions I saw were squeezing out as much air as possible and storing in a freezer.

On a side note, years ago I watched a video from an adhesives engineer talking about good glue up techniques and common mistakes. He said that with the Gorilla type glues you should clamp lightly or not at all if possible until the foaming starts, then clamp as you would any other glue.

Pete

I believe moisture activates the glue. If it's getting think in the bottle it's due to moisture or humidity.

It’s a urethane based glue. So I would think acetone or mineral spirits would work. Try it with a small amount first to see.

acetone, I believe. You can clean it up with acetone as the sovent.

I thought it was polystyrene, similar to spray foam and other spray adhesives that clean up with acetone.

There may be a solvent that will soften the glue but it will never be restored it to it's original condition. Gorilla Glue is a moisture curing urethane glue. There is a chemical reaction - actually two chemical reactions that happen with water that converts the liquid into a solid. Moisture gets into the bottle when you open the lid and over the next couple of months, it slowly cures the glue. There isn't much you can do to prevent it. Once that chemical reaction happens, you can't reverse it. Urethane glue that is partially cured can't be uncured and made into glue again.

Gorilla sell 16 different adhesives, you might need to know which one.

maintenanceguy covers the situation nicely. What he says is kinda true of most adhesives, not that they all cure with water, but that partially cured adhesive can't be uncured. Same applies to paint.

Thanks, yea, it's kind of what I thought. It's just like an epoxy. I figured the only thing that was saving me was the fact that it hadn't foamed up. I can still use it, it's just a pain in the butt to use.

Might be more expensive to keep buying the small bottles so your not wasting the big bottles unless you're doing large projects.

Water is pretty thin, you have to wet one side and put glue on the other side for it to bond.

When we used to use it we just bought more small bottles because of the, we have now quit using it because of failing issues.

Have a talk with the gorilla.He should know.

Failing? I have used it in hundreds of projects both indoor and outdoor. In fact, I used it for a flower wheelbarrow in the front of my driveway 7 years ago and it's still together. I have never had a glue joint from that product fail. I'm not being a spokesman for them. I just haven't heard of this "failing". Can you elaborate?

When gluing the plywood on cabinets it didn’t hold, and I had oak turning projects with gaps in the glue even when I completely cover it, made a mess with foam everywhere, but it seemed like it would create an air pocket and not fuse like it should, we use Bessy clamps and get them as tight as possible. So went back to titebond seems to work better and it doesn’t get hard in the bottle unless you forget to close it.

1. I assume you were doing end butts?
2. I have also seen that happen but mostly from the foam filling voids.
3. A great product that I also use all the time. However, for anything that I know will go through the "ringer" I like the gorilla.

In the dado joints, we build the cabinet up to eight feet in one piece, and dado the dividers in with the ends also dadoed. On the turning projects, if we are talking the same thing, the gap is in the glue joint without any void to fill, just couldn’t figure it out and I like to run my lathe very fast and enjoy my teeth. So I just got leery.

Throw it in the trash, don’t respond to this, instead do something that makes money. Buy new bottle of glue. Have brainstorm, invent successful coyote glue trap. Make millions

I recall tests way back when it first came out showing it had less strength on wood joints than white glue and the few times I used it or saw it used it failed, but a zillion users and and million dollar marketing team can't be wrong, so, while I don't use it I don't discourage others from using it.

That's why I hate monkeys.