Adhesion areas are pre-treated with bonding agents before using a VHB tape.

Technology study "Applying primers in a process-safe manner" (link to PDF:

When applying bonding agents/primers using the classic methods of sponge, spray or time/pressure contact dispensing, the special requirements regarding accuracy of the dosing volume and positioning can lead to problems time and again. Application with the PDos X1 jet valve solves almost all primer problems in practice. Due to its high dispensing volume accuracy - the repeat accuracy of the jet valve is usually 99% - errors caused by deviating primer quantities are almost impossible