Ilford Multigrade Developer is an efficient liquid concentrate consisting of dimezone-s/hydroquinone that is ideal for tray or dish development of all black and white photographic papers, both RC (resin coated) and FB (fiber based). This developer is typically diluted at 1+9 for intensified control and affordability, and produces an immaculate performance with no visual discoloration on the final product. Intended for use at a normal temperature of 20°C/68°F, Multigrade provides a comprehensive, economical solution for all paper types.