Hello,

I am in the middle of a restore on my first Nishijin restore and the tulips have a paper or then cardboard gasket (not sure of a better word) on the back that seems like it is glued to the tulip. I don't remember my other restores having them but my memory is very bad so I could be wrong. I usually soak the tulips in soapy water and scrub with a toothbrush but am concerned with dropping these in water. How do most people clean them?

thanks for any advice,
Mike