Ok I know this post is not in the right category but I couldn't find a category for kilns but this category is similar to kilns. Now to the post, In my recent posts I mentioned I needed to find a blower for my kiln, well I found one now and that was one item of the list. Now I'm trying to line either the inside or outside of my kiln with refractory cement diy or store bought. I need a refractory cement that can withstand 3000 degrees Fahrenheit because I'm firing pottery that requires 2500 degrees so why not have a cement for 3000. I do need a durable cement that can last long. I dont know if steel wool would reinforce the cement if I were to make my own. But if someone knows a good long lasting refractory cement recipe that can withstand 3000 degrees please let me know. I know it wont last forever that's why I will be ofcourse changing it. I provided photos of a smoker grill with measurements soon to be a kiln, Dont laugh. I'm using lump charcoal to fire clay like a charcoal blast furnace. I included a photo of the flue being measured from base and the photo with the calipers is being measured in mm. I dont know why it was in mm but owell. I hope all this info helps so some one may help me.