#1  
Old 10-11-2009, 06:02 AM
Serf
 
Join Date: Sep 2009
Location: Malta
Posts: 4
Default Horticulture perlite

I need some help regarding my oven insulation?

I would like to know whether horticulture perlite is good for the insulation of the dome? I found bags of perlite at a horticulture store. Is this the right material?

Shall I put it loose on the dome or mixed with portland cement?

I appreciate if somebody can give me some advice.
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  #2  
Old 10-11-2009, 06:55 AM
jmhepworth's Avatar
Journeyman
 
Join Date: Feb 2008
Location: Kaysville, Utah
Posts: 291
Default Re: Horticulture perlite

That's the right stuff. Whether you put it in loose or apply it with portland depends on your enclosure. If you are framing a house, pour it in loose. There's no reason to add all of the extra moisture. If you are making an igloo, if it's loose it will just blow away.

Have you downloaded the ebook? That answers a lot of questions.

Joe
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Old 10-11-2009, 08:04 AM
Journeyman
 
Join Date: Oct 2005
Location: Gilbert, AZ
Posts: 420
Default Re: Horticulture perlite

If you have a choice, be sure to get the coarser grade! Sometimes the fine grade is really small and dusty.

CW
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Old 10-11-2009, 09:07 AM
kebwi's Avatar
Il Pizzaiolo
 
Join Date: Aug 2009
Location: Seattle, WA, USA
Posts: 1,010
Default Re: Horticulture perlite

Yeah, I bought some perlite that looked remarkably similar to laundry detergent. Then I learned better and quickly returned it!!!
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Old 10-11-2009, 09:29 AM
Serf
 
Join Date: Sep 2009
Location: Malta
Posts: 4
Default Re: Horticulture perlite

I am going to put it in an enclosure so it can stay loose. However the perlite I could find is a bit small (the size of rice) and it has that fine dust. Would it do the job as well if I use this material?
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