LumberJocks

how long to keep CA

  • Advertise with us

« back to Woodturning forum

Forum topic by Karda posted 10-06-2019 06:38 AM 615 views 1 time favorited 20 replies Add to Favorites Watch
View Karda's profile

Karda

1765 posts in 1089 days


10-06-2019 06:38 AM

Hi I want to get some CA and clear epoxy to have. How long does it keep. don’t use it frequently but I like to have it on hand thanks Mike


20 replies so far

View Fred Hargis's profile

Fred Hargis

5799 posts in 3029 days


#1 posted 10-06-2019 10:43 AM

The CA seems to keep a long time…until it’s opened. Then it’s more like a matter of months (or at least that’s the way it’s worked for me. The epoxy can vary, depending on what you buy. Those twin tube packs where you squeez out “equal” amounts of the resin and hardener have usually went bad in a couple of years. But when I buy larger bottles of the stuff, it seems to keep for quite a while as long as the storage conditions are good. I didn’t think frezing would affect it, but for mine it ruined the epoxy (wouldn’t cure).

-- Our village hasn't lost it's idiot, he was elected to congress.

View Nubsnstubs's profile

Nubsnstubs

1625 posts in 2265 days


#2 posted 10-06-2019 12:58 PM

CA is usually good until it starts to gell/jell. It depends on the epoxy. Clear Cast Alumilite is an epoxy type product. Has a shelf life of 90 days, but will last a little longer. Some System 2000 I had lasted about 6 months and then it wouldn’t set. .......... Jerry (in Tucson)

-- Jerry (in Tucson) www.woodturnerstools.com

View woodsmithshop's profile

woodsmithshop

1388 posts in 4081 days


#3 posted 10-06-2019 01:11 PM

I just heard the other day that it lasts much longer if placed in the fridge, don’t know how much longer, I haven’t tried it yet, I have had a bottle of Titebond ca for over 2 years now and it just starting to go bad, (thicken up). I have been buying the small tubes that come with several on a card lately, even though they go bad, after opening, I am not losing so much as I would if I bought a larger bottle.

-- Smitty!!!

View TheDane's profile

TheDane

5694 posts in 4198 days


#4 posted 10-06-2019 01:44 PM

My CA lives in the beer fridge in my garage … I have some Starbond and Stick Fast bottles that were opened a couple of years ago, and are still good.

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

View SMP's profile

SMP

1419 posts in 441 days


#5 posted 10-06-2019 03:47 PM

I also found that the Zap bottles of CA that have the cap and then the second cover that go over the cap last longer than ones with the single cap.

View Karda's profile

Karda

1765 posts in 1089 days


#6 posted 10-06-2019 03:50 PM

thanks i just tossed a syringe of epoxy because one side got sand air bubble now it won’t come out even. I want to get tubes because they are there is more control. I buy over the counter CA but I have Arthur in my hand and can’t squeeze the bottles, and I haven’t been able to find thick CA in a tube. I usually get Gorilla Ca. But can’t squeeze it . I’ll try the fridge

View Planeman40's profile

Planeman40

1453 posts in 3296 days


#7 posted 10-06-2019 04:28 PM

Being a long time user of thin cyanoacrylic (CA) glue as a model builder, here is the way I have large bottles of CA sit on my workbench FOR YEARS without hardening.

First of all, understand that the catalyst that begins the hardening process for CA is MOISTURE. This is why it instantly hardens when applied to wood and takes forever is applied to steel or china. Wood has a moisture content while steel and china does not and the CA has to get moisture from the air around it. Keep moisture out of CA and It lasts for years. It does thicken up over a long time, like four of five years, but I use this as “thick” CA and it is good as that for another few years. Thus:

1. Put your CA in an air tight glass jar with a good cap on it.

2. Put a desiccant (silica gel) in the jar with the CA to remove the moisture in the air of the jar. Silica gel is dirt cheap. To buy some, just Google “buy silica gel”. Also, should your silica gel ever become saturated with moisture, you can restore it by putting it an oven at a temperature slightly above 212 degrees to drive the moisture out.

3. Add a “precision applicator” to the bottle of CA by buying a few hypodermic syringe needles at your pharmacy and cutting the tip off using a Dremel cut-off wheel. These syringes have a tapered base that fit onto the syringe. This tapered base perfectly fits the tips of large bottles of CA! These syringes come in various diameter tubes. Just get an assortment. They are cheap. And one more thing. The syringe tube will occasionally clog. No problem! Just hold the tip over a butane cigarette lighter for one second.

-- Always remember: It is a mathematical certainty that half the people in this country are below average in intelligence!

View Karda's profile

Karda

1765 posts in 1089 days


#8 posted 10-06-2019 04:36 PM

thanks for the tips planeman I have just the jar. If moisture causes CA to set up can you use moisture as an accelerator. Sometimes when I use it to fill gaps in my bowel I need to wait hours before I can turn it. Id like to reduce the time if I could

View dscheidt's profile

dscheidt

14 posts in 155 days


#9 posted 10-07-2019 01:32 AM



thanks for the tips planeman I have just the jar. If moisture causes CA to set up can you use moisture as an accelerator. Sometimes when I use it to fill gaps in my bowel I need to wait hours before I can turn it. Id like to reduce the time if I could

- Karda

You might want to see a doctor about that bowel problem.

Moisture can be used as a super glue accelerant, if there’s not enough available in the materials being glued. That’s not usually a problem with wood, or using as filler. There are accelerators that will speed set super glue pretty much instantly.

View Karda's profile

Karda

1765 posts in 1089 days


#10 posted 10-07-2019 02:50 AM

ok i’ll make an appointment Tuesday. But it relay just not enough coffee

View WoodenDreams's profile

WoodenDreams

791 posts in 446 days


#11 posted 10-07-2019 02:51 AM

For some repair and restoration projects, I use the syringe two part epoxy. Been buying four packages at time to have in stock, to save time chasing to the store each time needed. With the four I bought a couple months ago, All four had one side totally hardened. Not even useable. I returned all four and bought a different brand. Contacted the manufacture and asked about shelf life. He said the epoxy has a 2 year shelf life from time of manufacture. Who knows how long it sat in a warehouse before It got to the store, and who knows how long it sits in the store shelves before you purchase the epoxy. I was told by different woodworkers that as long as you don’t open it, the shelve life is a very long time. NOT SO. For the CA glue, I have had CA glue unopened for several years and have had no problem. To solve any opened CA glue tube issues, I’ve switch to buying it in the multi-pack small tube version. 4 tubes for 99 cents.

View Karda's profile

Karda

1765 posts in 1089 days


#12 posted 10-07-2019 02:55 AM

I do the multi packs too, but gel only comes in bottles, least that is all i can find

View runswithscissors's profile

runswithscissors

3080 posts in 2560 days


#13 posted 10-07-2019 03:51 AM

As near as I can tell, epoxy has an indefinite life. The resin (not the hardener) will crystalize in cold weather. Heating it in a pot of hot water will dissolve the crystals, and then it’s okay. But I never buy it in the little tubes or self-mixing syringes, as you pay too much per unit of weight. I prefer the 4 oz. bottles or bigger, as it’s much more economical that way.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

View Karda's profile

Karda

1765 posts in 1089 days


#14 posted 10-07-2019 06:32 AM

ok thanks that is good to know

View merlew's profile

merlew

1 post in 115 days


#15 posted 10-15-2019 09:58 PM

I use a lot of CA from Starbond, this is from Starbond website. “When well kept, our product can last several years in a cold environment. Just make sure to store the bottle under 40°F before AND after use to QUALIFY FOR OUR 20 month shelf life warranty. If product does not last, we will replace that bottle free of charge”

Merle

showing 1 through 15 of 20 replies

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com