April 12, 2025

Differences in Laser Engraving Performance on Various Materials

Laser engraving is a fast, precise, and highly versatile processing method used across metals, plastics, glass, wood, and more. But did you know that each material reacts differently to laser beams? Choosing the right laser type is key to achieving the best results. In this article, we’ll walk you through how laser engraving performs on different materials and help you pick the ideal solution for your project.

1. Metals: Crisp, Permanent, High Contrast

Recommended Laser Type: Fiber Laser

Metal is one of the most common materials for laser engraving—think stainless steel, aluminum, copper, and brass. Fiber lasers work especially well with metal, producing high-contrast, precise engravings that are long-lasting and wear-resistant.


Performance Highlights:

• Crisp and sharp engraving

• Adjustable contrast (white/black depending on settings)

• Ideal for part numbers, logos, barcodes, and QR codes


2. Plastics: Clear Results with the Right Laser Wavelength

Recommended Laser Type: UV Laser (and some Fiber Lasers)

Plastics vary widely in their response to lasers. UV lasers are usually the best choice for engraving plastics, offering stable, clean results without melting or burning the surface.


Performance Highlights:

• UV lasers deliver high-precision, clean edges

• Some plastics (like ABS) also respond well to fiber lasers

• Note: Certain plastics may discolor or bubble due to heat exposure


3. Glass: Elegant, Delicate, and Ideal for Custom Gifts

Recommended Laser Type: UV Laser

Glass is commonly used in gifts, trophies, and crystal displays. The UV laser’s shorter wavelength and minimal heat impact make it perfect for intricate glass surface engraving.


Performance Highlights:

• Produces a beautiful “frosted” effect

• Smooth edges with minimal cracking

• Great for high-end personalization and commemorative pieces


4. Wood: Natural Finish, Uniquely Textured

Recommended Laser Type: CO₂ Laser

Wood is one of the most artistic and expressive materials to engrave. CO₂ lasers can burn or engrave designs into different wood types, giving a warm and rustic look.


Performance Highlights:

• Each piece is unique due to natural wood grain

• Depth and tone variation possible

• Power control is key to avoid over burning


5. Other Materials (Acrylic, Leather): Creative Possibilities

Acrylic: CO₂ lasers work well, ideal for signage, displays, and LED lamps. Can cut or engrave.

Leather: Engravings can appear embossed or burned, perfect for custom fashion accessories like wallets, bands, or keychains.


In Summary: The Right Laser = Half the Battle

Laser engraving results depend not just on the material, but also on the laser machine type and its settings. At TitanEtch, we offer a full range of laser machines—including fiber, UV, and CO₂—and we’re here to help you choose the right one based on your materials and project goals.