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Photographic emulsion is a silver-based light sensitive material that can be applied to any surface, exposed by an enlarger and processing in conventional black and white chemistry. It is virtually the same emulsion found on ordinary photographic paper but in a liquid form and can allow the emulsion to be coated on a wide range of surfaces.
The Foma photographic emulsion is made by using the most modern production technology. The emulsion features medium contrast and extremely high covering power which enable gaining a wide scale of halftones even by a relative high yield of 3 to 6 sq. m per 1 kg of emulsion.
An advantage of this high-speed emulsion are short exposures which make large size enlarging possible. With the majority of developers, this emulsion gives a neutral to mildly warm image tone.
The emulsion can be spread on the most different bases including wood, textile, glass, china, ceramics, metals, leather, stone, concrete, plaster etc.
Tip: There is no exact ISO for liquid emulsion as it can vary from application to application. Generally, the more layers, the more sensitive the emulsion will be. However, the more layers of emulsion applied to the base, the longer the exposure may take to attain the full range of tones. Two layers (horizontal and vertical application - the most common application method) should be around ISO 1-3. This is also dependent on what kind of surface the emulsion is applied to. As with all analog products, test for best results.