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-   -   Grade of vermiculite to use for render? (http://www.fornobravo.com/forum/f6/grade-vermiculite-use-render-5146.html)

pizzahead 09-25-2008 04:23 PM

Grade of vermiculite to use for render?
 
Hi. I originally purchased all my WFO supplies a few weeks ago, bricks, insulation, mortar, vermiculite etc. After much thought (and many questions on this forum) I decided to lay vermiculite concrete under my calsium silicate board so I purchased some extra vermiculite from the local hydroponic supplier.

The vermiculite I purchased off him was grade 4 and the size of tiny marbles, the product I purchased a few weeks ago was grade 2 and much finer in size. I mixed the two together to make the concrete and it seems to have worked well.

My question is what grade (or partical size) should I use for the insulation around the dome once it is complete?

Cheers
Jase

Johnny the oven man 09-25-2008 06:57 PM

Re: Grade of vermiculite to use for render?
 
Grade 2 or 3 are the better grades Jase.


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