What is Laser Cleaning? Laser cleaning machines use extremely high-intensity pulsed. laser beams to vaporize contaminants (rust, paint, oil, oxides, coatings), completely without damaging the substrate. This non-contact, eco-friendly cleaning technology replaces the use of abrasive blasting, chemical solvents, and/or manual scraping of surface contaminants to clean surfaces faster, with the best precision, safety, and time efficiency possible.