Centre for Fine Print Research University of the West of England Centre for Fine Print Research
  enamel sample 1

Enamel sampling - tests and outcomes

Development of record keeping for enamel samples
In the early stages of the project a format was developed for the recording experimentation with enamel surfaces. The system was trialed and revised in response to the trial outcomes. Each sample was allocated a number which included the year in which it was created and a sequential number starting with 001. It was decided that no number would be repeated, for instance the last sample of 2008 was 2008-045 and the first sample of 2009 would be 2009-046. This unique number was placed on the back of each sample, using a permanent method (such as cutting with a diamond burr). The number also appeared on each page of the sample record. It was decided not to make individual photographic records of the samples, as a photograph could not adequately represent the enamel surface. Instead the samples themselves form a physical record of this aspect of the research to be accessed in conjunction with the written record.

As an illustration of the enamel surface research, three distinct trials are included here.

Enamel Surface samples

The first of these trials show the effect that increasing the firing time has on a single colour, in this case an opaque red. Red was chosen because it is an enamel colour that is particularly sensitive to over-firing. 
See fig. 1 - enamel process record sheet 1.pdf

The second trial illustrated investigates methods for achieving a matt black surface by a variety of methods. See fig. 2 - enamel process record sheet 2.pdf

The third trial illustrated investigates methods for achieving a matt white surface by a variety of methods. See See fig. 3- enamel process record sheet 3.pdf

A standardized set for the terms was established with an appendix where the common names or variations could be listed i.e. copper oxide, commonly referred to as firescale.
See table below -

standardised terms

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