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Heritage Science
Fig. 8 | Heritage Science

Fig. 8

From: Charcoal or black stone? Reconstructions as a tool to study the behaviour of dry underdrawing materials within the paint structure of sixteenth century panel paintings

Fig. 8

©HPM, HERCULES Lab—U. Évora, Portugal

Reconstructions with the gesso ground covered with different isolation layers. In the upper row, the drawings were executed 15, 30 and 60 days after the drying of the prepared surface, except for Panel 7 (P7) where the HART drying linseed oil was used and tests were therefore performed 10, 15 and 30 days after the application of the final isolation. In the lower row, details of the reconstructions of the upper row when the drawing was done 15 days after preparing the panel surface. Each panel was brushed with a feather to the right of the green line. to determine the removability of the lines. All images

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