'Surfaces and Margins' workshop Leicester April 2014
Tutor: Harry Nicholson website: 1513fusion.wordpress.com
Harry has very kindly given the journal the notes he prepared for his workshop.
“When leaded enamel is fired adjacent to unleaded, one sometimes retreats (crawls away) from the other to leave a raised surface at the boundary of contact. Over firescale, the beauty of this can be enhanced. We will investigate these effects and their potential for decoration.
Liquid unleaded enamel painted and fired over leaded enamel brings attractive crazing to the liquid image. We will see how this can be used to best effect and perhaps combine it with the 'crawling' phenomenon.
Supersoft flux T600 and separation 'enamel' yield raised surfaces and hollows.
Technical Terms encountered by enamellers:
The reciprocal of viscosity is fluidity,
The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. For liquids, it corresponds to the informal notion of "thickness". For example, honey has a higher viscosity than water. “Melting temperature” is commonly called “firing temperature” or “fusability temperature”.
Four characters of enamel