Airbus
Several Airbus specifications such as ABP 4-1123/4-2130 indicate that adhesion can be checked according to ISO2409 which is an important standard referenced frequently for paint adhesion testing. It is a destructive test and cannot be used on regular production
ISO 2409
Requires a crosshatch to be cut using either a single or multi-blade cutting tool. On metal substrates the crosshatch spacing is 1mm for coatings <60µ thickness (typically primer), the spacing is 2mm for coatings 61µ-120µ (typically primer plus topcoat).
The tape required in ISO2409 is at least 50mm wide and is recommended to be clear. The peel strength is 6-10 N/25mm.
In addition to these 2 items Pexa supplies the recommended magnifier together with the other items in a handy toolkit.
Airbus UK also provides for a non destructive test which is suitable for the detection of significant adhesion problems, however it can be used on regular production. The tape to b used is 3M #250 or an equivalent with peel strength >9N/25mm and elongation <5%. The tape is applied using a roller of width 25mm-50mm.
American Methods
Specifications from Boeing, Mil, ASTM, Fed and Bombardier specifications such as BSS7225 and Fed Std 14. Typically these methods require a 4½ lb roller to apply the tape, the hardness of the roller may also be indicated (Durometer 70+/-5 or 80+/-5). As of today the tape required in ASTM D3359 (Permacel 99) is not available so where this is required Pexa will be supplying the LA-26 tape which is likely to be approved instead.
The tape typically required for many of these standards is again the 3M#250
