Direct Fire MLT Insulation Project - Page 2 - Home Brew Forums
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Old 01-10-2010, 01:06 AM   #11
Bobby_M
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Hmm, not as much progress as I would have hoped. I actually piggy backed a brew day on top of my daughter's birthday party so I was helping set that up for a day or two. I had to rely on the old trusty reflectix. It ended up losing 3.5F over 60 minutes which isn't bad for a 45F ambient garage.

Progress so far is notching the sheet for the bulkhead and thermo and bending into the tightest circle I could muscle. This stuff is a bit too thick to bend by hand but I'll make it happen somehow. I have some 3M Super 88 spray adhesive to sort of attach the wool to the shell, we'll see how that goes.


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Old 01-11-2010, 05:45 AM   #12
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Quote:
Originally Posted by Bobby_M View Post
I have some 3M Super 88 spray adhesive to sort of attach the wool to the shell, we'll see how that goes.
Looking forward to hearing how this works.



Reason: off topic / posted while drinking too much

 
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Old 01-16-2010, 01:11 PM   #13
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Looking forward to hearing how this works.
+2
Hope it works out, great potential.

 
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Old 01-16-2010, 04:08 PM   #14
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Ugh, I guess I should get my lazy ass off HBT for an hour today and get some work done on it. It's actually a little warmer today so I have no excuse.
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Old 01-16-2010, 05:40 PM   #15
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if it as fragile as described, you may want to try shaping it around the carboy first, and glue the aluminum to it while on the 'form', or do you think it will survive the compression from flat to cylindrical?
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Old 01-17-2010, 02:08 PM   #16
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Don't know if you go to this project yesterday. When I was using the aluminum with adhesive backing, it wouldn't stick to the insulation. The adhesive would just pick up a thin layer of fuzzy insulation like one of those rollers you use to remove lint from your cloths. I'm curious if a liquid adhesive would penetrate better?

 
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Old 01-17-2010, 02:35 PM   #17
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That's a good point, and no I didn't get to it. I got reassigned to christmas light removal duty. Of course saying that I have nothing else to do is an immediate jinx.

I'm thinking about applying a light coat of the spray adhesive ahead of time to try to bind a full layer of fibers and letting it dry. To be honest, I may be procrastinating because this is a one shot deal. Once that thing falls apart, it's toast. Then again, it's a $6 item and at least I could say I tried. If this fails, I might have to pony up for the ceramic fiber blanket.
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Old 01-17-2010, 03:04 PM   #18
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You could use some of that SS lock wire you have to hold it initially to the kettle at about three positions. Then use the aluminum tape to wrap it with. Start with the tape 1/2 on the kettle and insulation and continually wrap all the way down. The tape sticks very well to itself and to the kettle. I secured my insulation this way, it has withstood the heat of all three kettles and traveling at 60 MPH down the freeway without being ripped apart.
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Old 01-17-2010, 05:53 PM   #19
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Then use the aluminum tape to wrap it with. Start with the tape 1/2 on the kettle and insulation and continually wrap all the way down. The tape sticks very well to itself and to the kettle.
How does the HVAC/Al tape hold up to the occasional flame that may go up the side of a kettle?

I was thinking of using Isofrax but wanted a good way to make sure that the fibers were contained and I didn't have some potential carcinogen's floating around (yes I know Isofrax has no hazard classes currently associated with it, hence why it is my first choice but I bet in a couple years it will be reclassified as a type 2b like all the other ceramic insulations), this could be the ticket. Sounds like a good idea if it can handle a lil flame!

 
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Old 01-17-2010, 07:25 PM   #20
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why not sandwich it?


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