MULTIGRADE is a liquid developer which is concentrated and it is suitable for all black and white papers. It can be used at a standard dilution of 1+9 or at 1+14 for greater development control and economy. MULTIGRADE developer is clean working and has excellent keeping properties and gives a neutral image tone with most papers. MULTIGRADE is designed for use at ambient room temperatures, normally 20°C/68°F. We do not recommend its use for high temperature or machine processing applications. It is not suitable for film developing.