Ilford PQ Universal Paper and Film Developer, is a liquid concentrate developer suitable for dish or tray developing of all resin coated (RC) and fiber based (FB) black and white photographic papers. It is a dimezones/hydroquinone derivative. As opposed to Ilford Multigrade developer, this developer will yield a slightly warmer tone. It should be noted that Ilford recommends that gloves, eye protection, apron or overall be worn when handling and mixing all chemicals.
Note: PQ Universal is NOT recommended for processing general purpose 35mm and roll film formats, or for high temperature or machine processing applications.
- For film processing applications it is diluted either 1+9 (high contrast) or 1+19 (pictorial contrast)
- PQ Universal developer is designed for use at ambient room temperatures: 20°C (68°F)
- Dilute 1+9 or 1+4 for nornmal working conditions; dilute 1+9/1+19 for technical and sheet films