Paintings
Ideally, paintings should be treated by a conservator.
But as a first step, set up tables padded with blotters
and covered with plastic.
Separate the merely wet paintings from those showing
structural damage. Signs of structural damage include
tears in the canvas and flaking, lifting, and dissolving
of paint and ground layers. Put the structurally damaged
paintings on the tables to dry, face up in a horizontal
position.
To dry a structurally sound painting, put several more
layers of blotter on a table, followed by a layer of
tissue paper. Remove the painting from its frame but
not its stretcher. Lay it face down on the surface,
making sure that the tissue is not wrinkled. Cut blotters
to the inside dimensions of the stretcher frame. Cut
a sheet of plywood or thick masonite to the same dimensions,
or smaller to fit inside the stretcher keys. Cover the
back of the canvas with a blotter (if the canvas is
large and more than one blotter is needed, butt the
blotters end to end), then the board, and finally weights.
Change the blotter until the canvas is dry. If the tissue
on the front has any tendency to stick to the paint,
leave it in place.