Release paper, corrugated cartons, coated surfaces and other materials can behave differently. Repositioning cycles, dwell time, peel feel and residue should be evaluated on the buyer's target material.
Record board grade, coating, ink and surface condition.
Record temperature, humidity, application pressure and dwell time.
Record the change after each bonding, removal and reapplication cycle.
Put the acceptance criteria on the signed sample and order instead of relying on a verbal description.