How to Apply CNC Window Film for Clear, Safe Viewing

If you’re operating CNC machines, maintaining visibility into the machine enclosure is essential for both safety and efficiency. Over time, machine windows can become clouded with coolant mist, chips, and oil residue. This is where a CNC window film, like an Insight Clear Screen, comes into play.

In this blog post, we’ll walk you through how to properly install CNC window film and keep it in top condition.

What is CNC Window Film?

CNC window film is a protective layer applied to the inside of a CNC machine’s viewing window. It acts as a barrier against oil, chips and coolant splashes, helping to maintain a clear line of sight into the machine while also preserving the integrity of the original window.

Step-by-Step Guide to Applying CNC Window Film

1. Clean the Surface Thoroughly

Before applying your CNC window film, it’s critical to clean the machine window:

• Remove all oil residue, dust and chips.
• Use the supplied microfibre cloth to give it a final clean.
• Ensure the window is completely dry and grease-free. Even the smallest dust particles can cause air pockets.
  

A clean surface ensures the film adheres properly and prevents bubbles or lifting.

2. Start Applying the Film

Your CNC window film comes with a protective adhesive layer:

• Peel off one-third of the protective foil using the red pull-off tab.
• Align the exposed adhesive side with the inside of the machine window.
• Press gently into place – do not touch the adhesive surface with your fingers.

3. Secure and Smooth the Film

• Use the provided squeegee tool to smooth out any air pockets and fully adhere the film to the surface.
• Once applied, remove the remaining backing and give it a final smooth-over with the squeegee to eliminate bubbles.

CNC Window Film Care Tips

Maintaining your CNC window film is just as important as installing it correctly. Here’s how to get the most life out of it:

• Clean regularly with water only.
• Avoid harsh chemicals as these can damage or cloud the film.
• Use the microfibre cloth that came with your kit to gently wipe away dirt or coolant residue.

Proper care keeps your view clear and your operators safe.

We’re the UK Exclusive Distributor of Insight KB Clear Screens

Installing a Insight KB Clear Screen is a quick, low-cost way to extend the life of your machine windows and maintain visibility. With just a few tools, your CNC workspace can stay cleaner, safer and more efficient.

Looking for high-quality CNC window film and accessories? We’re the UK distributor of Insight KB Clear Screens, so get in touch with us today. Our technical advice is always free!