The RadiBrush Glassy Carbon-P1 polymer brush coating is a poly(glycidyl methacrylate) (PGMA) brush on glassy carbon. The GC-P1 polymer brush is hydrophobic. The epoxide groups in the PGMA side chains are excellent coupling agents for further chemical modification or immobilization of specific functional groups, such as biomarkers or biomolecules (RSC Adv. 2017, 7, 55874). Therefore Glassy Carbon-P1 is an ideal polymer platform for any tailored functional surface coating. RadiSurf delivers PGMA polymer brushes ranging from 20-80 nm.