T&T: water pump grease

[Chester Brummett]

Changing the raw water pump impellors on my engines.

What grease is recommended for the inside of the pump housing and the new
impellor?

Engine manual (Perkins M135) recommends Castol Spheerol SX2.  A "true
multipurpose ships machinery lubricant..."  Unfortunately, I have not been
able to locate a local source (Orlando, FL).  apparently this product is
marketed to the commercial shipping industry only.

I am trying to find something at the local NAPA or other auto parts store.

Thank you for any recommendation.

Chet
Defever 44+5, Cygnet
Daytona Beach, FL