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-   -   Preserving Gorilla Glue? (https://www.rcuniverse.com/forum/tips-techniques-180/5147909-preserving-gorilla-glue.html)

FlyingGreg 12-22-2006 10:50 AM

Preserving Gorilla Glue?
I like using polyurethane glues, such as Gorilla Glue, but have trouble keeping the glue remaining in the bottle from developing a hard crust making it impossible to get any out. I have resorted to drilling through the crust into the still liquid glue and am able to squeeze some out then. I wipe the drill clean, but there has got to be a better way. Any thoughts out there in cyberland?

RCKen 12-22-2006 11:32 AM

RE: Preserving Gorilla Glue?
Glues such as Gorilla Glue are activated by moisture, so the trick to keeping them fresh is to keep them in a dry location. For all of my adhesives that are activated by moisture (polyurethanes and CA's) Previously I had a Rubbermaid container that I keep them in. I used to use those silica packets you see shipped with electronics in there to absorb the moisture out of the container. I stopped using that when we purchased a Food Saver vacuum machine. This is on of those things you see on info-mercials that vacuum seals food to store it (and yes, it works great!!!!). I use one of the big containers that came with it, I put in the adhesive bottles, and pump the air out of it so the adhesives are stored in a vacuum state. Works great. The glues will stay fresh for years if you do this.

FlyingGreg 12-22-2006 01:27 PM

RE: Preserving Gorilla Glue?
Thanks Ken. I am going to try zip lock food storage bag. I used to force canned air into my photo chemical bottles to help evacuate any trapped air to help the chemicals last longer. Might work with PU glue as well.

T_om 12-22-2006 05:21 PM

RE: Preserving Gorilla Glue?
For years and years I have preserved open cans of paint by taking my propane torch and directing a stream of propane gas into the open can. Propane is heavier than air and will settle on the top of the cans contents, shielding it from oxidation.

I do not know if this would work with PU glue or not, but that is what I would try.


majortom-RCU 12-23-2006 03:27 AM

RE: Preserving Gorilla Glue?
I store my polyurethane glue with the soft plastic bottle upside down. That way I have fresh glue ready to run through the spout, and whatever crust formation occurs is away from the spout. This has worked so far over maybe a year, using it every month or so, re-capping and re-storing. This is also an argument for buying smaller bottles--less quantity to go bad.

LesUyeda 12-23-2006 10:59 AM

RE: Preserving Gorilla Glue?
The instructions on the bottles of glue I get, say to store it the way Majortom does. The first time I did that, I developed a crust of hardened glue around the screw threads that hold the cap on. Obviously, the area is NOT air tight, so as the glue leaks and hardenes, it becomes air tight, and preserves the glue. My current bottle must be at least a year old, and is just starting to get thick.


Dzlstunter 12-23-2006 11:38 AM

RE: Preserving Gorilla Glue?
I got the crusty formation around the cap when I stored mine upside down, too.

I live in the Midwest, which is known for its humidity, so I noticed a tip on a British forum which I am currently trying out. I used a small plastic "soft oleo sized" container with a drying compound you can buy at Wally World for damp closets and cellars. The compound comes in a 1/2 gallon carton as a refill for their closet dispenser unit. I poked (drilled) holes in the lid of the small container to allow air circulation, then put it into a larger (gallon ice cream sized) container. Next go in all the water-sensitive adhesives.

So far (three months) it works. Takes longer to read my tortured explanation of it that to do it. Good luck, Dzl

FlyingGreg 12-26-2006 08:02 AM

RE: Preserving Gorilla Glue?
Why didn't I think of that???? MajorTom gets the nod for the best solution IMO--so simple and obvious I feel like a fool for starting this thread. Thanks MajorTom.

majortom-RCU 12-26-2006 09:37 AM

RE: Preserving Gorilla Glue?
I will say that the cap does get glued to the spout, such that I need a pair of pliers to crack the cap open, but it comes off clean and goes back on the same way.

FlyingGreg 12-26-2006 10:07 AM

RE: Preserving Gorilla Glue?
MajorTom--I have been using a short pieces of plugged fuel line as a cap for CA glues. I seals well and does not let air in. Don't know if it would seal a PU glue bottle. They may be too large, or perhaps a piece of large fuel line would work. I use vasoline on the threads of Goop to seal the tube, otherwise the Goop hardens near the top also making it unusable. or at least very messy if the tube breaks at the botom. Vasoline on the threads of the gorilla glue may keep a better seal as well. I think we are on to something!

Thanks to all that responded.

BTW--Goop is great for glueing on canopies. Sticks like crazy to monocote or ultracote. No need to cut covering and glue directly to wood. I use an acid brush to apply a thin coat to the edge of the canopy and just stick it on, hold down with rubber bands and/or tape. If you get any on the outside of the canopy or the planes covering, use alcohol to get it off before it dries or you'll never get it off.

jetpack 12-28-2006 05:35 AM

RE: Preserving Gorilla Glue?
caps allow air passage. the old water bottle trick wins again. tried and true.

rctrax 12-28-2006 05:32 PM

RE: Preserving Gorilla Glue?
for my ca'sI just let them sit withoput the cap in their holder on my workbench and they last for months without getting hard and I use them up by that time. If they get hard it's time to find a new brand

Flying freak 12-30-2006 12:32 PM

RE: Preserving Gorilla Glue?
If you dont want your CA too dry up in the tip trow it in the fridge just make sure it doesnt freeeze thats what i do now and it works nicly

tucker1865 01-05-2007 08:55 PM

RE: Preserving Gorilla Glue?
Gorilla glue is activated by humidity...I store mine rolled in a large plastic bag with rubberbands at the top and bottom. It has lasted well over 3 years.

SON OF PALEFACE 03-17-2010 03:28 AM

RE: Preserving Gorilla Glue?
Keep your glues in the fridge , Gorilla, cyno ...anything will keep MUCH longer because the inside of the fridge is a dry enviroment ..............works for me

spasmatic 03-17-2010 08:34 AM

RE: Preserving Gorilla Glue?
When finished using the gorilla glue, turn the bottle upside down and allow some of the glue to run out the spout. This eliminates the air normally left in the bottle and it works very well for me.

SON OF PALEFACE 03-17-2010 02:35 PM

RE: Preserving Gorilla Glue?
what about when the bottle is half or one third full ????

spasmatic 03-17-2010 03:13 PM

RE: Preserving Gorilla Glue?
I should have added to replace the cap before turning upright.

SeamusG 03-17-2010 05:10 PM

RE: Preserving Gorilla Glue?
A while back I posed that same questions to the Gorilla Glue mfg. Here is their reply:

<font size="2">"Gorilla Glue</font><span style="FONT-FAMILY: Arial"><span style="FONT-SIZE: 10pt"> is a polyurethane adhesive, and like all polyurethane glues, reacts to moisture to cure; that is, moisture is what causes the chemical reaction in polyurethane adhesives to harden. In reply to your concerns, it sounds like the glue bottle may have been closed with the air trapped inside. When the bottle is opened and the glue is exposed to the moisture in the air, it starts to cure (harden). For this reason, properly storing the glue is critical.  We advise customers to squeeze out any excess air before recapping the bottle tightly. You will need to make sure the glue is at the tip of the bottle before capping – otherwise air can be sucked back in.  The bottle should be a bit misshapen if all the air has been removed. This must be done after each application of the glue. Once the glue has cured, there is no way to return it to liquid form, so please do not attempt to heat the glue in any way.  Shelf life of completely unopened bottles would be about 3 years; however, once opened and not closed properly (that is, all air squeezed out), the shelf life would be very short.</span></span><span style="FONT-SIZE: 10pt">


<span style="FONT-FAMILY: Arial"><span style="FONT-SIZE: 10pt">

</p></span></span><span style="FONT-FAMILY: Arial"><span style="FONT-SIZE: 10pt">Any glue that is still in liquid form is reliable and usable. Take the bottle apart (be careful not to spill any glue) and clean the nozzle using a dry cloth or a toothpick to remove hardened glue.   If you have a crust on top of the liquid, we recommend poking down through the crust (with a stick, <font color="#000000">screw</font> driver, etc.) to remove the top dry layer.  If your glue is thick, you might try placing it in a bowl of warm water to thin it.  However, <u>never</u> microwave </span></span><span style="FONT-SIZE: 10pt"><personname><span style="FONT-FAMILY: Arial">Gorilla Glue</span></personname><span style="FONT-FAMILY: Arial"> as it can explode and cause damage. We recommend wearing protective gloves and old clothing when working with our glue.</span>


zzprop 12-05-2014 08:56 AM

What about the go to on the cell phone getting drenched in water.
Rice and phone in a zip lock baggie trick to absorb the moister.
Sound logical?

OldScaleGuy 12-23-2014 04:57 AM

Best place i found for Gorilla glue is in the trash can. :D
I store my CA in the fridge with the cap in place, never have a problem with it.
Aliphatic glues (my favorite) stay on the bench along with epoxies.
I used to store my epoxy upside down until one day one of the caps was found lose and i had a real mess, that was the end of that idea.

dhal22 12-26-2014 05:37 AM

Originally Posted by OldScaleGuy (Post 11946536)
Best place i found for Gorilla glue is in the trash can. :D
I store my CA in the fridge with the cap in place, never have a problem with it.
Aliphatic glues (my favorite) stay on the bench along with epoxies.
I used to store my epoxy upside down until one day one of the caps was found lose and i had a real mess, that was the end of that idea.

Gorilla glue has it's uses but not many in building planes. It is unmatched in sheeting balsa to foam wing cores.

takEon 02-20-2015 03:56 PM

I tried majortom's suggestion and it has worked great for several month's. In the past I had never had any luck storing it for anything over a week or two. Thanks!

vindee 03-25-2015 05:40 PM

The best way I have found is to set the bottle upright and squeeze the glue to the top leaving no air space. Then screw the top on. Other methods like turning the bottle upside down still leaves air in the bottle.

zzprop 03-29-2015 02:51 PM

i also store my GG upright squeeze all the air out put the cap on. I also put some vasaline on the threads.
it works great i also put mine in a container with a little rice in the container.

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