Can CitriSurf products be used on laser marked parts?
Laser marks are very susceptible to corrosion if they are not passivated. One of the best properties of CitriSurf is its ability to get good corrosion resistance of laser etch marks. Depending on the laser settings used, CitriSurf may fade or remove the black mark. If this happens we recommend higher power and depth of the laser mark If this is not possible, we recommend a full duration passivation of the part before laser marking, and a shorter duration passivation after laser marking, thus restoring as much corrosion resistance as possible without fading the mark.
Laser marks are very susceptible to corrosion if they are not passivated. One of the best properties of CitriSurf is its ability to get good corrosion resistance of laser etch marks. Depending on the laser settings used, CitriSurf may fade or remove the black mark. If this happens we recommend higher power and depth of the laser mark If this is not possible, we recommend a full duration passivation of the part before laser marking, and a shorter duration passivation after laser marking, thus restoring as much corrosion resistance as possible without fading the mark. This can be done by putting the parts back in the same passivation bath, i.e. CitriSurf 2050 or 2250. Alternatively, especially when the laser mark is applied post-assembly and there is something near the mark that needs to be kept dry, our gel version product CitriSurf 2210 can also be used.
