Historic Paint Analysis - Report Preparation

Report Preparation

Following the microscopic investigation a report is written. There are a variety of report types. Some analysts simply summarize their findings and provide little or no discussion of the individual samples and provide only their conclusions regarding historic finishes. At the other end of the spectrum are those who provide not only a discussion of each, individual sample, but also Munsell colors for each layer of each sample. This enables the clients to reach their own conclusions. In many cases the clients have access to additional information such as the history of the building and its maintenance which is not available to the finishes analyst.

Some analysts also provide photomicroscopy as part of their reports. Photomicroscopy is the photography of the samples through the microscope. Its advantage is to illustrate the findings of the report. Disadvantages include color distortions created by the light source and photographic dyes and also the tendency for some clients to match the colors observed in the photographs, rather than those provided in the report itself.

Following the basic report, further research may be required. Typical research includes the following:

• Provision of color sheets of selected colors from the Munsell Color System.
• Matching of the Munsell colors to a paint manufacturer's system.
• Pigment testing, such as for lead content.
• Media testing, such as for linseed oil or latex.
• Testing of clear or translucent finishes such as varnishes and shellacs.
• Further investigation of decorative painting such as graining (imitating wood), marbelizing (imitating marble), stencilling, or murals.
• Consultation in the replication of historic finishes.