Ridgidized Chile forge question

[arm and hammer]

The floor of the Chile forge I received doesn’t seem to have rigidizer on it, but the walls/ceiling of the forge do. 

Since the ceramic floor tile goes over the floor, covering the exposed wool, do I still need to rigidize that part? So far, everyone has told me I’m good to go but I don’t exactly understand why and want to be sure before I destroy my lungs. 

[Irondragon Forge ClayWorks]

I would apply rigidizer out of an abundance of caution, better to be safe than sorry. Given the velocity of the exhaust gasses, tiny particles of the blanket will become airborne without it. I would also apply a coating of Kast-O-Lite 30 and Plistix 900F.

[Mikey98118]

3 hours ago, arm and hammer said:

Since the ceramic floor tile goes over the floor, covering the exposed wool, do I still need to rigidize that part?

Well, if the "floor tile" is a high alumina kiln shelf, I would still put a layer of Kast-O-lite 30 between it and the ceramic wool. If the walls and ceiling of the forge should be ceramic wool board; I would just coat that with two or three layers of Plistix. But, if that  "floor tile" is ceramic wool board, the Kast-O-lite 30 should go on top of it, and than two or three layers of Plistix over that.