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Glass Laser Materials

Mirror Glass (Laser Engrave)

Generic / House Brand
⬡ Chemical Resistant
Overview
Float glass with reflective metallic backing (silver nitrate layer). CO2 laser engraves the BACK side — removing the reflective coating to create clear/transparent designs that appear as white from the front. Front-face engraving damages the coating unevenly. Produces stunning effects for signage and art.
Properties
Difficulty
advanced
Flexibility
rigid
Layer Adhesion
good
Enclosure
recommended
Heated Bed
no
Dry Storage
no
Pros
  • Creates transparent designs with reflective silver surround
  • High-contrast permanent marking
  • Elegant appearance for premium signage
  • Can backlight engravings for illuminated effect
  • Permanent — does not fade
Cons
  • Engrave back side ONLY — front destroys coating inconsistently
  • Cannot be laser cut (glass fractures from thermal stress)
  • Fragile — handle carefully
  • Coating thickness inconsistency affects results
  • Requires reverse-image in software (mirror image before sending)
  • Sharp edges on cut tiles from diamond saw
Best For
  • Decorative wall mirrors with custom engraving|Backlit illuminated signs|Awards and recognition pieces|Artistic pieces|Custom branding elements|Interior architectural features
Avoid For
  • Cutting operations|Structural applications|Outdoor exposure (backing degrades from moisture)|Functional mirrors (engraving removes reflectivity)
Storage
Store flat with protective film on both faces. Handle edges with gloves — sharp. Clean with glass cleaner (no abrasives). Stack with protective foam or cardboard between pieces.
Laser Compatibility
CO2 80W: Engrave BACK SIDE ONLY. 200mm/s 60% power, 1-2 passes. Mirror the image in software before sending — text will be backwards on the back side but correct from the front. Cover front mirror surface with masking tape to protect from debris. Do NOT engrave front surface — destroys silver backing unevenly. Wet paper towel on glass surface can reduce cracking risk.
Brands
Local glass suppliersmirror manufacturersHD Supply