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Old 02-24-2013, 10:57 AM   #21
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Quote:
Originally Posted by FF View Post
"I've had a recent tube take a week to begin getting tacky after application."

A spritz with water from a Windex style squirt bottle will start the cure and at least stop the surface from being sticky.

Moisture does the curing ,
On silicone?
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Old 02-24-2013, 05:42 PM   #22
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I had contacted 3M on this very subject and they told me the same as posted here was to put it in the frig, once opened. I had contacted them because the cap would crack and then it cures, but 3M consider a tube as a "one-time" use. Yep at a price of $8 at Home Depot or $20 if you buy it at WM...
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Old 02-24-2013, 07:57 PM   #23
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I had contacted 3M on this very subject and they told me the same as posted here was to put it in the frig, once opened. I had contacted them because the cap would crack and then it cures, but 3M consider a tube as a "one-time" use. Yep at a price of $8 at Home Depot or $20 if you buy it at WM...
I think it's a little more at Home Depot and a little less at WM, but my home centers only carry the 5200 and I need 4200 for my project. I think I paid $12 or $14 from an Internet vendor.

3M puts the 5200 up in smaller tubes, but there's not that much cost savings compared to the standard tubes.
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Old 02-24-2013, 10:39 PM   #24
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SW: sorry to bust your bubble, but I have had the small tubes of sealant last far longer without refrigeration than any large tubes, despite putting the big ones in the fridge. Is a different formula used on the small tubes? I suspect there is a reason for them lasting so much longer than the big tubes.
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Old 02-25-2013, 06:49 AM   #25
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SW: sorry to bust your bubble, but I have had the small tubes of sealant last far longer without refrigeration than any large tubes, despite putting the big ones in the fridge. Is a different formula used on the small tubes? I suspect there is a reason for them lasting so much longer than the big tubes.
You'll have to ask the manufacurer, but I can't imagine them using a different formula in different sized tubes. 5200 is 5200, 4200 is 4200, etc.
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Old 02-25-2013, 11:25 AM   #26
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The large tubes and the small tubes are made of different material. If there is a difference in shelf life maybe that would explain it.
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Old 02-25-2013, 11:36 AM   #27
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For small tubes I found that after you use some cover the top with plastic wrap and then screw the lid back on tight. Kept a small tube active for over a year and used it many times for little projects until the cap finally got weak and cracked.
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Old 02-25-2013, 12:05 PM   #28
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Has anyone had a problem LATELY with small tubes becoming useless?
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Old 02-25-2013, 12:11 PM   #29
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No Jeff. When I finish a project I toss the tube in the trash if it won't be used in the next month. Cuts back on the disappointment factor later on.
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Old 02-27-2013, 07:00 AM   #30
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"Moisture does the curing , On silicone?"

On 5200.
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