Our laser marking leaves a permanent high contrast black mark on stainless steel by using a process of laser welding on ceramic type material to the face of the nameplate or panel.
Test results are shown below:-
Laser marks were made on stainless steel tags using a Laser.
Tags were totally immersed in the test solutions.
| Exposure Time | ||||
| Organic Solvents | 1 Hour | 12 Hours | 24 Hours | 1 Week |
| Gasoline | No effect | No effect | No effect | No effect |
| Limonene | No effect | No effect | No effect | No effect |
| Methyl Ethyl Ketone | No effect | No effect | No effect | No effect |
| N-Butanol | No effect | No effect | No effect | No effect |
| Mineral Spirits | No effect | No effect | No effect | No effect |
| Xylene | No effect | No effect | No effect | No effect |
| Acetone | No effect | No effect | No effect | No effect |
| Propylene Carbonate | No effect | No effect | No effect | No effect |
| Ethanol | No effect | No effect | No effect | No effect |
| DMSO | No effect | No effect | No effect | No effect |
| Motor Oil | No effect | No effect | No effect | No effect |
| Acid/Bases | ||||
| Hydrochloric Acid 35% | No effect | No effect | See notes below | |
| Nitric Acid 68% | No effect | No effect | No effect | No effect |
| Sulphuric Acid (conc.) | No effect | No effect | No effect | No effect |
| Acetic Acid 99.5% | No effect | No effect | No effect | No effect |
| Hydrogen Peroxide 30% | No effect | No effect | No effect | No effect |
| Sodium Hydroxide 25% | No effect | No effect | No effect | No effect |
| Ammonium Hydroxide 20% | No effect | No effect | No effect | No effect |
| Other | ||||
| Boiling H2O | Soaked in boiling water for 1 hr. - no effect | |||
| LN2 (Cold) | Dipped in liquid nitrogen - no effect | |||
| Flame (Hot) | Heated in propane flame until cherry red - metal | |||
| Hot/Cold Cycling | Marks heated red hot and immediately plunged in liquid nitrogen | |||
| Notes: | ||||
| Hydrochloric acid testing: | - Acid dissolves the steel tag and was not run over 12 hrs. long | |||
| Sulphuric acid testing: | - Acid discolours at approximately 96 hrs. | |||