Etching lino in progress 17 June 201325 April 2015 | admin Some blocks with caustic soda (the yellow gungy stuff) on them. ShareClick to email this to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Google+ (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)