Rack system disposed with a polymeric cap

A rack system (500) comprising a plurality of metal profiles (200,300), one or more of the metal profiles (200,300) comprising a first end, wherein the first end is disposed with a polymeric cap (100) and is dismountably attached to an adjoining metal profile (200, 300) of the plurality of metal profiles,

• wherein at least a part of the polymeric cap (100) is disposed between the first end and a face of the adjoining metal profile (200,300) wherein some of the metal profiles (200,300) are arranged horizontally and some vertically,
• wherein the first end disposed on a horizontal metal profile (200) is configured for the dismountable attachment to a vertical metal profile (300), and wherein at least a part of the polymeric cap (100) is disposed between the first end of the horizontal metal profile (200) and the vertical metal profile (300), and
• wherein the vertical metal profiles (300) are disposed with a plurality of apertures (320), along at least one face of the vertical metal profile (300), each aperture configured for receiving a coupling clip (400) for dismountable attachment to the first end of the horizontal profile (200), wherein:
• the coupling clip (400) comprises a tapered member (420),
• the horizonal profiles (300) are each disposed with a horizonal profile slot (220) configured to fittingly receive the coupling clip tapered member (420), and
• the polymeric cap (100) is configured to be compressed between the adjoining metal profile (200,300) as the tapered member (420) advances into the horizonal profile slot (220).