Thank you Dominik.

As George reported a alcohol soluble shellac varnish for panchromatic emulsion , you report a alcohol soluble shellac varnish for starch grains. Dipping to the alcohol destroys two of them and make the starch grains unprotected and fragile.

Lets continiue from here , what is the best way to remove the top of the all , shellac varnish without harming the other ?

Umut