I'm almost finished locating all the materials I need for insulation: cal sil board and ceramic fiber blanket and some perlite over the insulated oven. I've also received a quote for a bag of calcium silicate insulating cement for $41 /25k bag.
I would have ordered the cal sil boards from the fb store, but the shipping was over $500 since I'm in the Philippines. So I decided to look for sources here though they may be of lesser quality.
The calcium silicate cement specs says service temp of up to 650 Celsius. bulk density 350 kgs/cubic meter. I'm thinking of using this for the buttressing of the soldier course and the angle setting brick of the dome. Do you guys think this would work as an insulator or would it be just be a heatsink wicking heat away from the oven chamber? I'm thinking of using perlcrete but this might seem as a more solid buttressing since it's cement.
Thanks in advance for any insight.
