Tips and tricks for laser engraving glass - Trotec Laser Gmb ..
Here are few: 1.. Moist paper towel.. Using a moist paper towel helps prevent the engraving area from becoming rough, and leads to a clear, white engraving result.. Before you start engraving, apply a moist single-layer paper towel to the glass.. Make sure there are no air bubbles or overlaps as this will affect the engraved image..