[QUOTE=rlabbe] [QUOTE=Larry Davis] Cooking won't do it, guys. Vacuum to evacuate the wood cells of air and pressure to force the liquids into the wood. Some "deep" penetration will happen as the air evacuates the cells and is replaced by the liquid, but adding a pressure cycle I penetrate thru and thru 2"-ash in about an hour, but that's not the limit by any means.[/QUOTE]When I wrote "cooking" I was referring to a pressure cooker, so pressure is present, but not vacuum. This goes back to a MIMF archived article that recommends using RIT dyes with a pressure cooker to color purflings. Doesn't seem to work too well. I know a fabric artist I talked to this about made a face when I said RIT; apparently they aren't very good dyes, but then she formulates her own.
Perhaps the pressure cooking isn't generating nearly enough pressure? I was never able to penetrate much below the surface with my set up.[/QUOTE]
Right...should have said "boiling"

The unknown factor here is was the wood wet thru and thru with no dye penetration or was the wood dry in the center with no liquid penetration at all to the center?