I need a dab of 5200

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Eric 1207

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Aug 28, 2025, 11:54:42 AMAug 28
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I thought I'd try this as I can't see opening a tube for such a small amount on a minor project.  And wasting the rest as it has such a short shelf life when opened.

If any of you local Seattle members has an opened tube of 5200 or similar strong goop, I'd gladly pay you on Thursday for your hamburger a dab of it.  I couldn't resist the old Popeye/Whimpy reference.  (Is this also in the recent movie, which I've never seen?)

I'm happy to come get the dab and it doesn't have to be now or in the next few weeks.  I can wait if you are planning a project in the future where I can nab a dap.  It's ok if it's a bit cured as long as it has some tackiness.   Any color is ok.  

Thanks 

Eric 

Mark Dix

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Aug 28, 2025, 12:21:37 PMAug 28
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Maybe this helps. I heard about this and searched Google AI to find this response.  I know it works with Aquaseal.  Maybe it works with other caulks and glues too.  Mark Dix:
How to freeze an opened tube of 3M 5200
For best results, follow these steps when storing your opened tube: 
  1. Release pressure from the tube by pulling back the plunger on the caulk gun.
  2. Remove the nozzle and set it aside.
  3. Clean the tip of the tube and the inside of the nozzle to remove excess sealant.
  4. Create an airtight seal by placing a small piece of plastic film over the threads at the tip of the tube, then screwing the nozzle back on tightly. This will keep air out of the main sealant reservoir.
  5. Place the tube in a sealed freezer bag to add an extra layer of protection from moisture and condensation.
  6. Store the bagged tube in your freezer. 
How to use the sealant again
  1. Remove the tube from the freezer and allow it to sit at room temperature for about 15 minutes to soften.
  2. Unscrew the nozzle and pull off the dried plug of sealant that formed inside.
  3. Use a skewer or wire to remove any excess cured material from the nozzle.
  4. Reassemble the nozzle and use the sealant as normal. It should flow freely like a fresh tube. 
AI responses may include mistakes. Learn more




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Eric Lindahl

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Aug 28, 2025, 5:00:07 PMAug 28
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Thank you Mark.  I'll do that if I end up cracking a tube of the stuff.  Interestingly I was cleaning up my shop this morning and came across an old open tube of Boatlife caulk.  Squeezing the foil tube I can feel that its it's still pliable and usable but I don't think it is as strong as 5200.  I need more of a glue than a caulk.
Eric 

Northwest Multihull Association Membership Officer

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Sep 10, 2025, 11:02:17 AM (6 days ago) Sep 10
to NWMA, Mark Dix
I don't know if you got your 5200, but Loctite PLS40 might also be an option:


Unfortunately it only comes in gun-sized tubes but I see it online for as little as $5.50! I think I found it at the local chain hardware store for ~$11

Ostensibly, 5200 comes in small tubes 1oz or 3oz, but 3M knows what they're up to and charges too much for a small tube when that is often what we need. I think it should be sold like superglue - a 6-pack of 1oz tubes for the same price as one 10oz gun-sized tube would be reasonable.

Eric Lindahl

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Sep 10, 2025, 12:34:31 PM (6 days ago) Sep 10
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Thanks Paul,  I totally agree about the smart super glue packaging.  Unfortunately so little SG is needed for the typical repair (in my experience) that the bulk of it is still left in the small tube.  Fortunately I've found that if you keep the tube's nozzle upright the SG seems to remain liquid and useable for a surprisingly long time.  Like a year, so that is good.
Eric 
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