How to Apply CNC Window Film Using Insight KB Clear Screen

If you’re operating CNC machines, maintaining visibility is important for both the safety of machinists and overall efficiency. Over time, machine windows can become clouded, which is where a CNC window film comes into play.

Just in case you weren’t aware, CNC window film is a protective adhesive layer applied to the inside of a CNC machine’s viewing window. It shields the surface from oil, coolant and debris, keeping visibility clear and the original window intact.

In this blog post, we’ll walk you through how to install CNC window film and keep it in top condition. We’ll cover each step of the process – from preparation to applying and maintaining your CNC window film – so you can achieve a clear finish.

For a proven solution in CNC environments, take a look at the Insight KB Clear Screen – designed for durability and easy application.

What Is CNC Window Film?

CNC window film is a specially designed protective layer that’s applied to the inside of a CNC machine’s viewing window. During everyday machining, this window is exposed to coolant mist, debris and oil splashes – all of which can reduce visibility and eventually damage the window itself. 

It helps to maintain a clear line of sight of the workpiece, which is essential for both safety and precision. Products like the Insight KB Clear Screen are designed for easy application and are a cost-effective way to keep your machines running safely and efficiently.

Step-by-Step Guide To Applying CNC Window Film

1. Clean The Surface Thoroughly

Before applying your CNC window film, it’s important to give the machine window a thorough clean. That means:

• Remove all oil residue, dust and chips.
• Use a 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 that will affect visibility.

This first step is crucial. A clean surface ensures the film adheres properly, which prevents bubbles or lifting.

2. Start Applying The Film

When your CNC window is clean and dry, it’s time to apply the film. Most CNC window films – like the Insight KB Clear Screen – come with a protective layer that makes installation fairly straightforward. Here’s how to get started:

• Peel off one-third of the protective backing 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.

Though it can be tempting to rush this stage, taking your time with the initial placement ensures a smooth application overall.

3. Secure And Smooth The Film

With the film in place, the next step is to secure it fully, taking care to remove any air bubbles. This part is key to ensuring a clean and clear finish that stays in place during machine operation:

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

Taking your time with this helps to achieve a clear finish and maximise the film’s lifespan.

CNC Window Film Care Tips

Though CNC window films will need replacing periodically,  a little maintenance can go a long way in extending their lifespan. Proper care keeps the film clear and ensures visibility into the machine. Here’s how you can get the most out of your CNC window film:

• 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.

With just a bit of routine care, your CNC window film can stay clearer for longer, helping you to maintain a safer and more efficient working environment.

We’re The UK Exclusive Distributor Of Insight KB Clear Screens

Installing an Insight KB Clear Screen is a quick, low-cost way to improve workpiece visibility. With just a few tools, your CNC workspace can stay cleaner, safer and more efficient.

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

For more insights, tips, and industry news, be sure to explore the rest of our news section – we’re here to help you get the best from your coolant.

Insight KB Clear Screens FAQs

What Sizes Are Available For Insight KB Clear Screens? 

Clear Screen discs are available in three sizes: 200mm, 300mm and 400mm in diameter. This range suits a variety of CNC machine window dimensions, from small enclosures to larger industrial machines. Choosing the right size gives operators a clear, unobstructed view during machining.

Can The Insight KB Clear Screens Be Applied To Curved Machine Windows?

Yes, Insight KB Clear Screens are designed to adhere to both flat and curved protective panes, making them compatible with most CNC machine enclosures.

What’s Included With Each Insight KB Clear Screens Order?

Each screen comes with a microfibre cloth for cleaning the machine pane and a squeegee tool to help reduce air bubbles during application. These accessories help to make installation quick and straightforward, whether you’re applying the film for the first time or repairing a worn screen.

Are Insight KB Clear Screens Reusable Or Replaceable?

CNC window film is a wear item. That means once visibility is reduced or the film becomes damaged, it should be removed and replaced with a new screen for long-lasting performance.

Why Should I Buy From Pennine Lubricants?

Here at Pennine Lubricants, we’re the sole UK supplier of Insight KB Clear Screens. With decades of industry experience, we offer a range of high-quality solutions for industrial use, as well as personalised support and expert technical advice. That way, you can get the most from your equipment.