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Old 09-19-2008, 11:30 PM   #1
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I just bought a 60 Qt. Igloo Ice cube. I think it will make a great MLT. The only thing I'm concerned about is that the lid is hollow, and devoid of insulation. Has anyone ever filled a hollow cooler lid with expanding foam. Would it even make much of a difference.

 
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Old 09-19-2008, 11:32 PM   #2
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I used a 40 qt Igloo for a long time. I'm not sure if the lid was insulated or not, but I suspect it is. I didn't have any problem maintaining temp over the course of the mash time.

If your lid really is hollow, I'm sure that drilling a hole and filling it with foaming insulation would be fine, and probably a good thing. I always just threw a couple of towels over mine.
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Old 09-20-2008, 12:02 AM   #3
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I use my 60 quart igloo for a "lagerator"- and I realized the lid was hollow. I made a "new" styrofoam lid with three layers of cut foam. I just removed the other lid, in case I ever want to use it. Here's a picture, and there are more in my gallery:
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Old 09-20-2008, 12:18 AM   #4
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A lot of people drill a hole in the top of the lid and iject some "Great Stuff" into it. "Great Stuff" is that expanding foam that comes in an aerosol. You should be able to pick it up from any type of building/hardware store.
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Old 09-20-2008, 12:35 AM   #5
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I posted a thread a few days ago concerning the Igloo Ice Cubes. I'm going to use the 50qt myself, but there were a few posts about the "Great Stuff".

Which Cooler Should I get??

mklawz did this with his
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Old 09-20-2008, 12:50 AM   #6
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There was just a thread on BA about someone filling their lid with an expanding foam but while mashing the foam liquified and dripped into the mash. So I guess you'd need to find a high heat foam and make sure you plug any holes on the underside of the cooler lid just in case.

 
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Old 09-20-2008, 01:07 AM   #7
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Why would anyone drill the holes inside? I have considered putting some in mine but figured I would drill from the outside. Am I missing something?
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Old 09-20-2008, 01:23 AM   #8
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Quote:
Originally Posted by Nurmey View Post
Why would anyone drill the holes inside? I have considered putting some in mine but figured I would drill from the outside. Am I missing something?
seriously.
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Old 09-20-2008, 01:29 AM   #9
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No Nurmey, I think you have the right idea. Drill form the top, shoot a bunch of foam in. When it expands and comes out the holes, cut off the excess flush and you're done.

The cooler I'm looking at has a small plug on the underside that acts as some kind of pressure relief valve. This could be a place for something to drip through. I would just plug this hole first with some food grade silicone or caulk. In my case this plug is where I will run my vinyl tube through the lid for my sparge arm, so I'll run some kind of collar(that the tubing would fit snugly in) through the hole first before I spray in the foam.
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Old 09-20-2008, 01:53 AM   #10
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Quote:
Originally Posted by Nurmey View Post
Why would anyone drill the holes inside? I have considered putting some in mine but figured I would drill from the outside. Am I missing something?
My lid has a plug and 4 little holes on the underside. I was just saying that if you spray any foam inside to just plug up any holes on the bottom in case something happened to the foam and it started dripping.

 
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