greaseless

adjective3

1. •
   Without fats or oils.

   • Many lubricants are greaseless, being based on graphite or silicone.
2. •
   Not feeling greasy to the touch; not leaving a non-water-soluble residue.

   • Users insist on greaseless cosmetics.
3. •
   Not requiring separate lubricant.

   • The O-ring and the Teflon formed a greaseless seal.