RCF porous rigid boards are manufactured through a vacuum casting process using a slurry made of RCF fibers with inorganic and organic binders, formed to near thickness, dried in an oven, and sanded to final thickness. Standard casting thickness can be up to six inches, but thicker than four inches is often made by stacking board assemblies. Boards are Fabricados em densidades baixas e mais altas em tamanhos padrão, mas também disponíveis até 60 polegadas de diâmetro . placas de baixa densidade são isoladores um pouco melhores, mas não são tão duráveis e fortes quanto a alta densidade .
Customized shapes can be fabricated with made-to-order vacuum molds or by assemblies of smaller parts and layers bonded with RCF cement. The rigid RCF molding mix is machinable and can be manufactured in a wide range of shapes and sizes to meet customer needs, including bolt-together pipes, manifolds, elbows, transitions, and custom fittings, as well as burner blocks, peep-sight Janelas e mangas para qualquer design exclusivo do sistema de forno . Também é possível incorporar elementos de aquecimento na face quente dos mecanismos de isolamento e fixação no corpo e nas costas das placas .
