Reply by Lazyman

I’ve never used either but I think that they are different things. My understanding is that the Yorkshire grit has an abrasive used to prepare the wood for a finish, sort of a last sanding step before applying a finish, while the Shellawax is a finish. Shellawax is called a friction polish because it sets and hardens due heat from polishing while the lathe is spinning. I’m not sure that the sanding sealer is necessary for most woods since I’ve never turned a burl, I cannot say if it would beneficial or not.

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.