Originally Posted by
Brighty83
Thanks Oz,
I have heard its not good for synthetics so I wont use it on my synthetics ( unless it a barbers hone :p ). It does make sense that synthetic hones could be damaged by soaps as they are held together by resins and\or glues etc, natural stone are held together by stone itself thus should be less of a risk with corrosive agents.
Just fyi, I found my old style waterstones i.e. Kings, suffer no damage from the soda but the newer ceramics are a different story.
It sounds like they were trying to achieve the same results if they used to use sodium carbonate, I would have thought i basic lather soap would be less corrosive then sodium carbonate, since sodium carbonate is a salt.
I dunno, soap is made with caustic soda why would that be less corrosive ?
Isn't the whole "dont get your jnats too wet" to do with the stone cracking not dissolving? I though it was to do with the natural lines through the stone and expansion with the water causing it to crack, i know max has soaked jnats with no issue but i'm guessing they don't have any line or faults in the stone.
It's about both. I bought my Asagi & Suita at the same time about 3 years ago. Always left them wet. The Asagi being so dense no dramas. The Suita being more porous started to get soft & could be scratched by my fingernail. Took some serious lapping to get it back to a healthy surface. You may argue it was just that stone but the potential is there.