Black marks on challenging substrates

TherMark offers several products specially engineered for optimal laser marking of glass and ceramics. These products are scientifically formulated to create a permanent chemical bond to glass or ceramic surfaces.


Marking glass and ceramic with traditional methods is a significant challenge. Current marking methods tend to produce low-contrast gray or white marks. Chemical etching processes can be time consuming and involve using highly toxic materials. Direct marks with a CO2 laser are made by creating ‘micro-fractures” which frost the glass but can compromise the strength of the substrate.


TherMark’s patented laser marking materials create extremely high quality marks while protecting the glass or ceramic surface from damaging laser energy. The contrast, resolution, and durability of these marks make TherMark materials ideal for these common applications:

Awards & Engraving Glass trophies and awards Designs on plates and dinnerware Personalization of mugs and cups Designs on ceramic tile

		Bullet Proof Glass

Industrial VIN #s on automotive glass Coding and traceability on laboratory slides Specialty electronic components and substrates Serialization and brand marks on sanitary ware Logos and instructions on industrial glass ID on glass ampoules and vials

Compatible substrates
The process window for creating high quality marks may vary depending on substrate composition and/or thickness, application method, and laser type.

Laser recommendations:
Although CO2 and solid state lasers both work for marking glass and ceramic, if you are concerned about micro-fractures, it is prudent to avoid using a CO2 laser. For marking glass & ceramic, we recommend a minimum of 15W of power for CO2 lasers, and 5W of power for solid state lasers.

Feel free to consult our Choosing a Laser section for more information on choosing a laser.

Marking Time:
Exact marking times will vary depending on your choice of TherMark material, substrate composition, substrate thickness, and laser power. For more information on cycle time, click here.