The step up from the C Profile extrusion has a wider footprint for a more stable fix. Suitable for internal applications and short term external applications. Use JN (internal, non re-enforced Jonc) only. Profile can be fixed using Very high bond double sided tape to window frame applications (limited max size for this installation method).
Pros - only 9mm deep, can be bent / curved around a surface.
Cons - requires a fixing at 150mm centres max, single use.
Note* all Crystal tensioning profiles require a solid fix for the graphic to reach optimum tension. Failure to get a solid fix can have detrimental effects on the graphics tension.