blackpete
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You can buy castable refractory and also different kind of refractory materials from Vitcas
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Homemade refractory recipe
blackpete replied to easilyconfused's topic in Insulation and Refractories
Perlite on its own is not useful for temperature above 900 C. Perlite is usally used in refractories in conjuction with other materials to increase insulation. For example in refractory castable sometimes called refractory concrete