Sealing Tape Can You Use A Sealing Grease With Teflon Tape On Old Plumbing?

Can you use a sealing grease with teflon tape on old plumbing? - sealing tape

I'm trying to put on a galvanized nipple back in an old shirt, corroded galvanized. It is almost inaccessible, and the exchange of old shirts, to hopefully avoid a big mess (concrete, tiles, etc. and not broken) to fit. Should I only Teflon tape or Teflon-putty, or you can even fat. If I am the fat guy I refuse to use white lithium-based, but do not know Don, what is in pipes.There water is not pipe dope Styler years on the local market.