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Author Topic:   5200/4200 storage
Whalerdan posted 02-20-2002 01:48 PM ET (US)   Profile for Whalerdan   Send Email to Whalerdan  
Every time I buy a tube of this stuff I use it one time, and put the lid on tight when I'm done. The next time I go to use what's left the whole cap end of the tube is hard. I end up poking a whole in the back end of the tube to get some out. Then the tube is wasted.

How do you store this stuff so you can use the whole thing and not waste half or 3/4 of the tube? Has anyone ever seen small (like an ounce or two) tubes?

kingfish posted 02-20-2002 03:03 PM ET (US)     Profile for kingfish  Send Email to kingfish     

3M 4200 and 5200 fastcure is available in 3 oz. tubes through West Marine. I am assuming the tubes you're having trouble with are the typical caulking-gun type 10 oz. tubes?


Tom W Clark posted 02-20-2002 04:08 PM ET (US)     Profile for Tom W Clark  Send Email to Tom W Clark     

That's a tough one. If it's the 3 oz. tubes we're talking about, don't worry about it just buy a new one. With the 10 oz. cartridges 3M has the advantage of having the screw on type tip (this is one of the advantages of the 3M products over the Sika products which do not have the removable tip). Just leave the tip on and the caulk will get hard. When you want to use more just unscrew the tip and pull the "plug" out the back side and reinstall.

Sometimes I use my air compressor with a rubber tipped blow gun to blast that plug out. Works like a charm.

If the caulk has hardened in the cartridge, try puncturing the hardened caulk without the tip on. I use a piece of stainless steel rod from an old Teleflex outboard control cable. Much stronger than a coat hanger but the same idea and diameter. If you can get down to uncured caulk then reinstall the tip and away you go.

It will definitely help if you can store the caulk somewhere with relatively low humidity. Remember, polyurethanes cure with moisture.

Duncan posted 02-20-2002 07:12 PM ET (US)     Profile for Duncan  Send Email to Duncan     
Just read the tube I have laying around. From the Instructions:
"Contents of tube must be used 18-24 hours after seal is punctured"

I guess once a little bit of oxygen touches it it all begins to cure....not sure if pokeing a hole to get at the back of the tube is a good idea. It may produce less than a full strength bond!

Eric posted 02-20-2002 10:07 PM ET (US)     Profile for Eric  Send Email to Eric     
I have been using the same tubes for months. I have a large tube of 5200 and a full size (calking gun size) tube of 4200. Cap them with a small piece of plastic shopping bag under the cap, put them in a baggie, squeeze all of the air out of the bag that you can, and freeze them! I take off the calking tip from the full size tube, and keep some replacement tips; they will clog up. Usually, that's where the problem is.
kingfish posted 02-21-2002 10:26 PM ET (US)     Profile for kingfish  Send Email to kingfish     

Leafing through the new West Marine catalog tonight I see that 5200 (*not* fast cure) is offered in one ounce tubes in white.


whalerron posted 02-21-2002 11:05 PM ET (US)     Profile for whalerron  Send Email to whalerron     
I haven't tried freezing the leftover 5200 but I do store it in the refrigerator. It keeps for at least a few weeks that way.
lhg posted 02-22-2002 01:51 AM ET (US)     Profile for lhg    
What in the world are all you guys using 5200 for? I have yet to find a proper use for it. It was designed to be used by the boat building industry as a permanent bonding agent, such as where the outer and inner liners are bonded together at the gunwales on a conventionally built boat. The stuff takes a month to fully set up & cure.
Tom W Clark posted 02-22-2002 02:00 AM ET (US)     Profile for Tom W Clark  Send Email to Tom W Clark     
5200 is a good and tenacious sealant and adhesive. It is readily available just about anywhere and works in a very wide variety of applications.

It is not the best for bedding hardware however, but contrary to reports here, it is perfectly all right to use it to bed screws. You WILL be able to remove them later.

It does not take a month to set up, but rather overnight or a few days depending on how much humidity is in the air and, of course, temperature.

Whalerdan posted 02-22-2002 08:14 AM ET (US)     Profile for Whalerdan  Send Email to Whalerdan     
Kingfish, I didn't realize that the small tubes where 1 oz. I have used this size but I still think they're too big. Need something like 1/4 oz, something in the order of the size of a tube of supper glue. I don't understand why they don't sell it like this. I mean if I only have a couple of screws I want to seal I have to buy a $7.00 tube and 95% of it goes bad!
DJS posted 02-22-2002 10:39 AM ET (US)     Profile for DJS  Send Email to DJS     
I have quereyed 3M about this problem and will let the members know what I receive. In the meantime the below URL will provide an insight into the properties of these products.


kingfish posted 02-22-2002 12:50 PM ET (US)     Profile for kingfish  Send Email to kingfish     

I'm sure you have been using the 3-oz. tubes if they are smaller than a typical caulking-gun cartridge (10 oz.). My second post above regarding the 1-oz. tube is in reference to the *new* West Marine catalog that just came out. I have never seen a 1-oz. tube - they're brand-new.

Alan Hiccock posted 02-22-2002 02:47 PM ET (US)     Profile for Alan Hiccock  Send Email to Alan Hiccock     
Another 5200 question please - Yesterday I rebedded the siderail on my 15 sport, just checked it & this stuff doesnt want to dry. It was 58 degrees yesterday here on long Island. Today it's 51. Tube says dry to touch in 2 hours @ 25 c , that's 77 deg.s if Im not mistaken , but it didnt say anything about a min. temp for usage. I'm doing a lot of typing here for a simple question,
How long will it take for 5200 to dry in temps around 50+ degrees?
Tom W Clark posted 02-22-2002 03:47 PM ET (US)     Profile for Tom W Clark  Send Email to Tom W Clark     

It depends on whether you're using 5200 or 5200 FC (fast cure). If the former, give it a week, if the latter give it a couple of days. It helps if the humidity is high as polyurethanes cure by water.

Alan Hiccock posted 02-23-2002 09:42 AM ET (US)     Profile for Alan Hiccock  Send Email to Alan Hiccock     
Thanks for chiming in Tom, no I didnt get the fast cure.. I was just suprised it didnt dry to the touch after sitting overnight in 60 deg, weather. As long as it's dry by Flounder opening day in about 2 weeks.
Tom W Clark posted 02-23-2002 03:27 PM ET (US)     Profile for Tom W Clark  Send Email to Tom W Clark     

If you want to give it a little jump start you can spray some water on it with a spray bottle.

DJS posted 02-28-2002 07:45 AM ET (US)     Profile for DJS  Send Email to DJS     
Here is the reply I received from 3M regarding the storage of these products.

Thank you for your recent inquiry regarding 3M Marine products. 5200 and
4200 are moisture curing products, so the minute you open the cartridge it
will start curing in the tube. This is why we have the statement on the
Cartridge. What you might want to buy the smaller tubes - carded, 05203
3oz white 5200 or 05260 3oz 3M 4200 if you have a small job to do and don't
require a full Cartridge.

Marine Trades

Notice there wasn't any reference to one-ounce tubes. David

Whalerdan posted 02-28-2002 08:04 AM ET (US)     Profile for Whalerdan  Send Email to Whalerdan     
DJS - Hey thanks for looking into this with 3M. I'm going to try and put this stuff in a plastic bag and pull a vacum on it next time. Can't hurt to try.
kingfish posted 02-28-2002 10:01 AM ET (US)     Profile for kingfish  Send Email to kingfish     
Maybe someone ought to try ordering the one-oz. tube of white 5200 that is advertised in the new West Marine catalog and see what happens...

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