using a cartridge of 3M 4200

[jjwelly]

So I feel a little dumb with this question, but I bought a cartridge of 3M black 4200 to seal a hole in the hull where my transducer will pass thru. I pretty much only need like a 1/2 ounce, but, sadly, 3M does not sell tubes of black 4200. The cartridge showed up today, and it's a metal tube that opens up like grease cartridges, not like a tube of caulk or silicone that I'm used to. So I'm completely puzzled as to what I am supposed to use to push the sealant out the tube. Also frustrated that the tube will surely be wasted/non usable in a couple of days once opened. Can someone who has experience with these cartridges help me with using this? I was thinking I could just pop open the tube from the bottom, then just spoon it out since I don't need to make any beads or anything. Also thinking about just giving up on black, and using white since I have 4200 in the 3oz tube, but my boat is black everywhere I need to use the 4200. Thanks for any help..

EDIT: I know 3M sells black 5200 in a tube, which I also have, but didn't really want to use that for the application at hand..

 

[jacoviii]

4200 and 5200 is prone to curing. They seal both ends to prevent this. You still use a caulking gun.

 

[zipper]

As stated above, use a regular caulking gun. After use, put it in a zip lock bag in the freezer. It will last a long time in there. That is where I keep mine.



I know your 10 oz. cartridge is bigger, but that will keep it from hardening. As you already know, they put black 5200 in a 3oz. tube, it's in there. I've had that black in there for 3 years and it is still good.

 

[jjwelly]

ok thank you. So when I pull the metal tab from the back of the cartridge, is there a plastic plug or similar that is behind that, that the caulk gun pushes on? I was thinking when I saw it, that the sealant is directly behind the metal tin, like grease guns. I wish they just made black 4200 in a tube like they make everything else, but maybe I can still keep it usable for a few times. Thank you all..

 

[jjwelly]

As stated above, use a regular caulking gun. After use, put it in a zip lock bag in the freezer. It will last a long time in there. That is where I keep mine.

View attachment 169490

I know your 10 oz. cartridge is bigger, but that will keep it from hardening. As you already know, they put black 5200 in a 3oz. tube, it's in there. I've had that black in there for 3 years and it is still good.

love this. "Hey honey, do we have any burritos?" "Yes, they are underneath the adhesives.."

 

[zipper]

ok thank you. So when I pull the metal tab from the back of the cartridge, is there a plastic plug or similar that is behind that, that the caulk gun pushes on? I was thinking when I saw it, that the sealant is directly behind the metal tin, like grease guns. I wish they just made black 4200 in a tube like they make everything else, but maybe I can still keep it usable for a few times. Thank you all..

There should be a disk seal inside to push against.