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Old 06-15-2018, 12:15 AM   #21
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I have a wholesale account with the West Coast 3m distributor. I still have to pay $6 a tube. If you can get a pro account with West Marine I think it’s $7.50 a tube.
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Old 06-17-2018, 03:53 PM   #22
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I have a wholesale account with the West Coast 3m distributor. I still have to pay $6 a tube. If you can get a pro account with West Marine I think itís $7.50 a tube.
If that's the 3 oz tube, that's a bargain... will call my dealers and see what they can do.

Thx.
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Old 06-17-2018, 05:07 PM   #23
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5200 white is available in 1oz tubes. I keep one in my tool box and toss after use.
The freezer trick makes a lot of sense. 5200 is moisture cured. No humidity in a freezer to set it off.

I wonder if vacuum bagging would work?
Yes, it does. Foodsaver makes it like the tube hasn't been opened. Just remember to tightly seal the tube with the cap before vacuum bagging....
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Old 06-17-2018, 07:10 PM   #24
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If that's the 3 oz tube, that's a bargain... will call my dealers and see what they can do.

Thx.
Thatís for 1 oz tubes.
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Old 06-18-2018, 01:18 PM   #25
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The savings isn't worth it to me to have to deal with storing the tubes and dealing with extracting and using the material from old tubes. The savings comes up to about the cost of a drink at a bar. If I used it daily or even weekly it might be a different story. The infrequent use isn't worth it to me in the long run.
us$32.00 a tube down here is hardly what I'd call beer money! Or maybe you just drink very expensive beer.
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Old 06-18-2018, 02:53 PM   #26
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I spoke to a 3M tech rep at their headquarters specifically about this subject. She said that 5200 cures by moisture and heat. Said best advice is to buy in smallest tube size you need for a specific project, seal the remainder in a zip lock bag (or vacuum sealer) and store in the refrigerator. She didn't mention freezing, but from the reports, apparently it works!
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Old 06-18-2018, 03:12 PM   #27
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us$32.00 a tube down here is hardly what I'd call beer money! Or maybe you just drink very expensive beer.
3oz tubes aren't nearly that expensive here.
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Old 06-19-2018, 09:57 AM   #28
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I thread a 1/2" #8 screw down into the tip when done using it. The screw often lasts only once because the 5200 / 4000 hardens at the very tip; but I have no trouble using the tube months later.
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Old 06-19-2018, 10:07 AM   #29
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Be aware that 5200 / 4000 have expiration dates that are only about a year from manufacture. When they get old, they won't cure. Freezing might suspend the aging process, but I don't know.
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Old 06-19-2018, 02:13 PM   #30
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Be aware that 5200 / 4000 have expiration dates that are only about a year from manufacture. When they get old, they won't cure. Freezing might suspend the aging process, but I don't know.
I think it is not that they don't cure, it is that the entire tube solidifies into a cured rubber. I have never seen polyurethane no cure, but regarding silicones, those tubes expire and DO NOT cure if old. I have had it happen, I called GE to complain because some silicone before the expiration time did not cure, and I got free coupons.

However the silicone you buy for engine repair, even if ancient, will cure. Usually old tubes simply harden all the way through. Put everything in the freezer to slow down or stop curing.
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Old 06-19-2018, 08:40 PM   #31
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I called GE to complain because some silicone before the expiration time did not cure, and I got free coupons.
I wonder if they will continue to be as accommodating, having been just kicked out of the Dow.
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Old 06-21-2018, 05:39 PM   #32
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Saving sealants

I store all sealants and caulks in a container which I vacuum pack. They stay fresh indefinitely. I also store all spare parts in bags which I vacuum seal.
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Old 06-21-2018, 06:09 PM   #33
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I store all sealants and caulks in a container which I vacuum pack. They stay fresh indefinitely. I also store all spare parts in bags which I vacuum seal.
Seems like a lot of folks vacuum pack their things.... Can you educate us on what vacuum equipment you use... options and bags needed?

Thx
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Old 06-21-2018, 06:32 PM   #34
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I use an old Foodsaver. Similar to this. https://amzn.to/2yvVWSv

Here is another popular (and inexpensive) vacuum sealer on Amazon. https://amzn.to/2ys91fI

We bought a small one that is low on extra features, but easy to store.
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Old 06-21-2018, 09:49 PM   #35
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It’s good to vacuum bag your flares as well. The retail packaging isn’t very water resistant.
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Old 06-22-2018, 02:45 AM   #36
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I noticed that 3m 5200 comes in 1oz, 3oz, 10oz or 5 gal pail.
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Old 06-22-2018, 06:32 AM   #37
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At the marine electronics place I worked , we got a lot of tubes that only after a half season or so of storage, the whole tube had hardened.

Now that was a few years ago, maybe things are better, and freezing certainly may help but I would still be leary of storage time.

Most things that self harden....usually do.....
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Old 06-22-2018, 09:56 AM   #38
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Seems like a lot of folks vacuum pack their things.... Can you educate us on what vacuum equipment you use... options and bags needed?

Thx
It is a Food Saver, GameSaver Big Game model. It operates on both 120 volt A/C electric as well as 12 volt D/C current. In addition to Food Saver bags we have Ball Dome canning jar accessory and Food Saver cannisters of varying volumes. We use one canisters for all sealants and caulks.

We lightly spray spare machinery, such as a starter, alternator, water pump, etc., with Patron Plus spray lubricant prior to sealing them for storage.

As an aside, I use Patron Plus lubricants in or on ALL mechanical equipment and fuels, and Royal Purple oil in ALL engines.
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Old 06-24-2018, 04:41 PM   #39
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Most things that self harden....usually do.....
...until they're old.
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