Need to rebuild forge?

[deloid]

The Satanite and Mizzou are cracking and exposing the lining now. Is it time to tear out and rebuild or is a patch up possible (and safe)?
Thanks

 

[Stacy E. Apelt - Bladesmith]

Small to medium size cracks are normal, and of no concern. You can patch them with some satanite, or ignore them. If they get large, or start falling out in chunks, it is time to re-line the forge.

 

[deloid]

Thanks Stacy!