FOMABROM and FOMASPEED VARIANT III are ortochromatically sensitized photographic papers. Therefore, a suitable safelighting differing from that for conventional photographic papers should be used. Dark-red safelight filters for orthochromatic materials, e.g. Kodak GBX-2, Ilford 906, Agfa R1, Osram Duka 50, etc. in connection with a 15 Watt lamp, discharge lamp Sodium Vapor etc. are fully suitable. Because of its high speed, these papers should be exposed to this safelighting only for a time prerequisite to handling.
In my experience Fomatone MG falls into the same category.
Unsafe safelight are a common cause for a lack of print contrast.