For an environmental sustainable future Hydrogen is an outstanding candidate as a fuel for aerospace application. It has the highest mass energy density compared to other fuels, is clean and eco-friendly. Further, hydrogen is the smallest stable molecule, which leads to rapid permeation through the walls of storage tanks. Therefore the main object of this work is the evaluation of different types of Graphene nano Platelets (GnP) as possible filler in different polyamides to limit permeation rate. The very high possible aspect ratio and the low weight make GnP to an excellent candidate in light weight construction. Based on rheology measurements the shear thinning effect shows that there is a good interaction between GnP and especially semi-aromatic polyamide, whereas aliphatic polyamide has less effect. Morphology development and permeation characterization depend on both processing conditions and filler – matrix combination was investigated, in order to enhance barrier effects achieved by melt compounded samples. This was shown in small scale (DSM X-plore, 15 ccm) and large scale Leistritz twin screw compounder combined with film extrusion.