This is the most commonly used version of CerMark that has been around for over 20 years. This product is used to make permanent black marks on bare metal items when used with a laser. May not work as well on aluminum , brass and other soft metals depending on the power level of your laser. Other CerMark coatings LMM 14 and Ultra tend to be best for softer metals and also work on all other metal types as long as there is not film or coating on the surface of the item.
Available in liquid or spray can. If you have never used before start with a spray can. Liquid is concentrated and is meant to be thinned before use. Liquid version works best if sprayed on but can also be applied with a foam brush.