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Alternative Photographic Processes - (Hand made photographic -emulsions and processes)

Metal Glass and other no porous materials

Liquid Light can be coated onto a number of different materials -

Hard materials, metal, plastics, wood, glass, ceramics, need an oil-based pre-coat for good adhesion and to prevent discoloration. For a transparent pre-coat, use glossy polyurethane varnish. For a colored pre-coat, use alkyd primer paint. Both are available at paint and hardware stores. (Oil-base coatings are those whose label says they can be thinned with mineral spirits. Do not use water-base coatings or acrylics, lacquer, shellac, damars, satin finish coatings, etc. which will soften in the developer.) Artist's canvas that has been primed with water-base gesso should be given a topcoat of oil-base varnish or paint.

Glass and glazed ceramics only: A useful alternative for adhesion to glass is a gelatin precoat or traditional photographic "subbing" solution, which fuses the emulsion to the surface. This solution works with mineral-based materials like glass and china, glazed tiles, ceramics and porcelain-- not with plastics, metals, or other hard materials (use polyurethane or paint.)

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