Detergents, disinfectants, sterilisation and passivation processes can corrode the UDI codes on stainless steel medical devices. A budgeting study of these factors can avoid this scenario, as can setting ideal marking parameters to ensure long-lasting results and unchanged contrast.
Laser marking on titanium, which is known for its resistance to corrosion, oxidises the surrounding air, thus obtaining a dark blue UDI code.
As for plastic, usually test-tubes or thin tubes, LASIT has replaced the UV technology with one that marks all medical devices while maintaining high-quality standards.