I'm looking to clean this very old NOS wire-wound Clarostat RA30 pot. it appears like there is mold on the wire-wound resistor cause it's white and stringy under a microscope. It appears like the wire wound part is wound around a phelonic pcb substrate. its old enough also any lube has turned to wax. doing some research it seems that the wire wound resistor is wound around material made up of Phenol-formaldehyde which is degraded by the white rot fungus Phanerochaete chrysosporium. I'm positive this is exactly what I am seeing here. I will say this is the first seeing this on phenolic, but, seeing that the whole unit this pot is going into is also made of phenolic pcb's id hate to see this mold get into the rest of the unit. Looking for how to cleaning this pot without damaging the phenolic or the bakelite, and how to properly lubricate it, and where to lubricate it, should i lube jsut the shaft or should there be any lube on the wiper area? Also looking to keep this issue from coming back, or even worse spreading to any other phenolic in the equipment its in.