Polydeuces

Thank you for the suggestion! It's actually an octagonal kiln! (Skutt KM1027). This helps a lot, though. It looks like my local supplier has greenpatch available in pint volumes and is very reasonable. I understood most of your recommended course of action but was curious, what do you mean by "final strike all the joints?"

Thanks, Neil! They don't go all the way through as of yet. I'm wondering if it might be the mud daubers around here or something, but I've never noticed any critters hanging out on top of it.

Thanks! A dumb question but... If I put tape over the seams, wouldn't the tape melt onto the kiln lid?

Yes, I'm not exactly certain what's happening there. The kiln is outside (well-covered) and I'm not sure if it's critters or if it's a combination of the heat + relative humidity. Either way, I know it's not a problem right now, but I just want to keep it from becoming a problem! So I'm just wondering if there's some kind of cement that would be good for this portion of the kiln. Cheers!

Certainly, here is the photo:

Hey y'all! As per title, I have some lines (they look like "seams") on the lid where cement is beginning to peel. I'd like to treat it, but there are many different kinds of refractory cement out there and I'm just wondering what the community's recommendation is for repair materials. Thanks very much! Cheers, Kevin