National Gallery Technical Bulletin Volume 22, 2001


Appendix 2: Summary of the lining preparations and procedures (those procedures which are in italics were NOT performed on the rig)



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Appendix 2: Summary of the lining preparations and procedures (those procedures which are in italics were NOT performed on the rig)



Glue-Paste (1 step)

Lining and Painting:

Tension lining canvas in tester. ‘Apply glue-paste to painting’. Position painting on top of lining. Smooth with roller. Apply 25 mbar pressure (and maintain until the composite is dry). Heat to 40°C for 20 mins. Leave to dry on tester. Remove from tester.
Wax-Resin (3 step)

1. Lining

Tension lining canvas in rig. Brush liquid wax onto lining canvas. Smooth with roller. Apply 25 mbar pressure (and maintain throughout). Heat to 7O0C for 20 mins. Leave to cool on rig (2 hrs). Remove from tester.

2. Painting

Brush liquid wax on painting’. Position painting in tester. Heat to ‘650C’ for 10 mins. Smooth with roller. Apply 25 mbar pressure (and maintain throughout). Heat to ‘65°C’ for 20 mins. Leave to cool on tester (2 hrs). Remove from tester.

3. Lining and Painting

Tension lining in tester. Position painting on top of lining. Apply 25 mbar pressure (and maintain throughout). Heat to 65°C for 20 mins. Leave to cool on tester (2 hrs). Ready to test on tester.
BEVA 371 (2 step)

1. Lining

Tension linen lining canvas on tester. Size linen with brush coat of hot diluted BEVA gel (4:1 white spirit:BEVA). Leave to dry (4/6 hrs). Brush a further 3 coats of hot BEVA (1:2 white spirit:BEVA) onto the linen allowing 4/6 hrs drying time between each application. Leave on tester.

2. Lining and Painting



Position painting on top of lining. Apply 25 mbar pressure (and maintain throughout). Heat to 68°C for 20 mins. Leave to cool on rig (2 hrs). Ready to test on tester.




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