RC3 doors RC3 is a fireproof security-rated apartment door. The frame and door leaf can be delivered in any RAL color. The door leaf is supplied as standard in galvanized steel and powder coated. It can also be delivered in PVC-coated steel. Sizes: 9×21, 10×21 Momec RC3-class doors: RC3Single leaf door Momec_RC3.pdf All Security Doors Momec_RC3_RC4_en.pdf * Quick guide to Momec Security Doors