Photographic Darkroom Resin Coated Printing Paper. Multigrade Black and White Resin Coated Glossy Darkroom Photographic Paper is a variable contrast resin-coated black and white photographic paper for darkroom use. Compatible with all chemicals and filter sets, Multitone VC RC offers outstanding value with no compromise on quality. Safelight Red or amber OC safelight with a 15 watt bulb located at least 6.5'/2m from the paper, with a total light time of 40 minutes. Processing Multitone paper is suitable for both tray and machine processes. Tray processing is recommended.