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  1. 1 Wójtowicz R.

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  1. 1 1984

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Wzmocnienie wytrzymałości mechanicznej płótna "Panoramy Racławickiej" - dublaż

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Wójtowicz R.
Ochrona Zabytków
|
1984
|
issue 4
269-276
EN
Up to now, in moist cases, the prime purpose of the panorama conservation has been to restore and increase its mechanical strength. Those oases have been presented and compared with the conservation of the Racławice Panorama. The necessity to reinforce almost the entire surface of the picture in a vertical position has been proved. The parts of the reverse which had been mended (seams, glue joints) were additionally strengthened by local reinforcement applied ”wet” (on small surfaces) — adhesive: Lascaux Acryllkleber 498 HV, carrier; ’’fizeldna”. Strips of reinforcing fabric were pasted on 3 metres below the upper edge of the individual segments in a horizontal position. Relatively small deformations occur in that airea. The work was oarrded out on a convex table (9 m X 3,5 m) in a vacuum pocket. The strips of glass fabric measuring 1,10 m in width and 15 m in length were machine coated with Acryllkleber 498 HV so that the adhesive wias evenly spread. The adhesive was reactivated with toluene prior to lamination which took place in a temperature of ca 65°C for 2—3 sec per surface unit. Additionally, the one metre strip below the upper edge of the segments was reinforced with a very strong polyester fabric — „Trevira” which wias pasted on with Acryllkleber 498 HV. The principal reinforcement was carried out when the segments had already been suspended and intergrated into a picture. The method was the same as applied during the local reinforcement in a horizontal position. The facing was held fast by means of laminated panels (2,5 m X 1>2 m), profiled so as to match the desired shape of the picture surface; the panels were mounted on mobile overhead trolleys. The reinforcement was successfully completed in eight weeks (20 people, 1700 m2 of the surface).
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