The Ultimate Guide to Choosing Laser Cutting Protection Film ...

Author: Monica

Dec. 16, 2024

The Comprehensive Guide to Selecting Laser Cutting Protection Film

When it comes to laser cutting protection film, it's essential to consider a variety of specifications to ensure optimal performance during your projects. Research shows that the right protective film significantly impacts the efficiency of the cutting process and the overall outcome.

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Your unique needs and project specifics are critical for informed purchasing decisions. Identifying the most important considerations for your application is the first step. Here are some key factors to evaluate:

Coherent is recognized as one of the largest laser manufacturers globally, serving diverse cutting applications across industries such as industrial, communications, microelectronics, and instrumentation. Coherent is adept at providing a wide range of cutting lasers, allowing us to make unbiased recommendations tailored to your unique needs and project requirements.

Gathering application-specific information can be challenging since many suppliers offer limited laser technology options. Consequently, they might advocate technologies that fit their inventory rather than what suits your particular needs.

TIP: The Overview Chart outlines the main types of cutting lasers presently available and serves as an excellent starting point. Embedded links in this chart direct you to detailed information on various lasers or specific sections of this document, aiding in your decision-making process.

This Buyer’s Guide aims to assist you in selecting a cutting laser. Rather than prescribing a specific product or supplier, the goal is to equip you with the knowledge needed to make confident purchasing decisions. We encourage you to ask the right questions during your research for optimal results.

2. Styrene

Styrene is an affordable polymer manufactured in thin sheets similar to acrylic. Although lightweight and robust, these sheets can be prone to brittleness. Commonly seen in toys and home appliances, styrene's laser cutting compatibility arises from its low melting point, which allows for easy melting during cutting. However, this characteristic also presents challenges; intricate designs are difficult as the heat may cause melting, distorting cuts and details.

3. Kapton® Tape

This thin polymer film, known as Kapton® tape, features high thermal conductivity, making it suitable for electronics and spacecraft manufacturing. Due to its thermoset properties and high-temperature resistance, Kapton® is preferable for laser cutting. The material absorbs the laser energy effectively, allowing complex designs without substantial carbonization issues.

4. Nylon

A common thermoplastic, nylon boasts a range of high-strength applications in textiles and durable goods. This fabric is ideal for laser cutting as the process produces melted edges that prevent fraying.

5. High-Density Polyethylene (HDPE)

HDPE is a widely utilized plastic, known for its durability and resistance. The material’s low melting point allows for efficient laser cutting, although care must be taken during cutting to prevent melting close to edges.

To learn more, see our guide on High-Density Polyethylene.

6. Polypropylene (PP)

Polypropylene is renowned for its rigidity and heat resistance. It cuts well with lasers, offering clean edges without discoloration, albeit leaving behind a slight raised edge.

7. Polyethylene (PE)

The most widely produced plastic globally, polyethylene comes in several forms for various applications. It cuts efficiently with lasers; however, some forms may cause slight discoloration.

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8. ABS (Acrylonitrile Butadiene Styrene)

This thermoplastic blend is well-known for its high durability and impact resistance. However, caution must be employed when laser cutting ABS due to potentially hazardous fumes released during the process. The cuts are often polished, yet achieving fine designs can prove challenging as the material can warp from heat.

Are you looking for more details on Laser Protection Film? Contact us for an expert consultation!

9. Two-Tone Acrylic

This acrylic variation provides a vibrant visual effect often used in signage and promotional displays. Laser cutting these sheets is equivalent to cutting standard acrylic, yielding a polished finish.

Mylar® sheets are commonly employed in stencil production, facilitating high-precision cuts while remaining adaptable and resistant to moisture and chemicals.

Guidelines for Laser Cutting Plastics

Optimal laser cutting of plastics requires using a CO2 laser. The majority of plastics absorb CO2 laser wavelengths well, unlike fiber lasers, making them generally unsuitable for laser cutting plastics.

Plastics must possess qualities that prevent them from igniting during the laser cutting process, ensuring safe vapors are produced. It's crucial to choose materials that produce non-hazardous degradation products during cutting.

Considerations When Choosing a Plastic for Laser Cutting

Identify the end product's needs first. Specifications regarding transparency, flexibility, color, and durability will determine suitable plastic choices. Consider the cost and the laser cutting capabilities of different options as well.

Materials That Should Not Be Laser Cut

Certain materials should be avoided for laser cutting, including:

  1. Fiberglass
  2. Carbon fiber
  3. Halogen-containing materials
  4. Epoxy and phenolic resins
  5. Glass

To learn more, view our guide on the Types of Bad Materials for Laser Cutting.


Xometry's Plastic Laser Cutting Services

Xometry provides immediate quotes for Plastic Laser Cutting services. Start your quote today!


  1. Plexiglas® is a trademark of Röhm GmbH.
  2. Kapton® is a trademark of DuPont Electronics, Inc.
  3. Perlon® is a trademark of Perlon-Monofil GmbH.
  4. Mylar® is a trademark of DuPont Teijin Corporation.
  5. StyrofoamTM is a trademark of Dow Chemical Company.

Disclaimer

The information on this page serves informational purposes only. Xometry does not guarantee the accuracy or completeness of the details presented. Buyers are encouraged to define their specific requirements when seeking parts quotes.

For additional information, explore our website for protective tape for aluminium.

Laser Cutting Sheet Metal With Protective Film: 4 Key Points!

Application of protective film on sheet metal affects production efficiency. While suppliers often standardize films, this can compromise the cutting process. However, if film application occurs in-house or at high volumes, manufacturers can select more appropriate films.

Finding the right balance between high adhesion limiting bubbles and low adhesion that simplifies film removal is crucial.

A) Key considerations for selecting a film include:

? Cutting technology: fiber laser or CO2 laser
The fiber laser’s shorter wavelength is not absorbed by plastic, so using CO2-specific films can yield uneven cuts. Therefore, films tailored for fiber lasers include built-in absorbers.

? Material type: stainless steel, aluminum, and pre-lacquered finishes

Highly thermally conductive materials like aluminum or copper require film adaptations, ensuring higher thermal resistance. Pre-lacquered steel cutting can also pose challenges if the lacquer doesn't absorb laser wavelengths effectively.

? Thickness of the sheet metal
The required cutting gas pressure varies with thickness, impacting adhesion needs. Films meant for thinner sheets will cause bubbling on thicker materials.

? Surface finishes: brushed or glossy
Adhesion is influenced by the material’s surface, hence specific films are designed for different finishes.

B) Quality control: ensuring film suitability and application
? Specific color coding guides operators in visual inspections. For example, CO2 laser films have a black adhesive side and white exterior, while fiber laser-specific films display black adhesive and gray external sides.

? Proper film application is vital to minimize elongation, which diminishes adhesion and increases bubbling risks.
A simple test for proper application includes:

  • Peeling a strip of film off the sheet.
  • Waiting a minute.
  • Comparing the film length to the adhered area; differences should remain under 1%.

Watch for visual cues, such as bubble defects in application.

? Avoid cutting the sheet metal for 48 hours post-application.

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