Mastering Perforated Window Films

Window graphics are a staple in the signage industry, offering both visual appeal and functionality for business branding and information. In this blog, we’ll walk through the process of applying Avery Dennison MPI 2509 Perforated Window Film with DOL 1460Z Gloss Overlaminate to the rear window of our Mercedes Sprinter van. This film has a 50/50 open area which is ideal for the rear glass on passenger vehicles.

Our expert, Brenden, demonstrates three different installation methods each which has its advantages, depending on the application:

•Unlaminated

•Laminated

•Post Laminating

Unlaminated Perforated Window Film

For a quick and efficient installation, unlaminated perforated film is a great choice. The perforations in the material allow air to escape easily, reducing the risk of bubbles, making application quick and straight forward.

Best for:

• Shopfront windows

• Side vehicle windows (where visibility through the glass is not required)

However, keep in mind that without lamination, the ink is exposed to external elements such as rain, dirt, and wiper friction, which can cause faster wear over time.

 

Laminated Perforated Window Film

Applying a laminate over the perforated film enhances durability and protects the print from weathering and scratching from vehicle wiper blades. However, the application process requires a specific technique.

Key application tips:

• Use an arching squeegee stroke to help the material conform smoothly to the window.
• Trim the edges flush with the window to prevent dirt and moisture from getting underneath.

The biggest advantage?

Laminated graphics allow water to flow off the surface, maintaining clear visibility when driving. Without lamination, water can settle in the perforations, causing a blurred view, a potential safety issue for rear windows. Check out the video above for a clear demonstration.

 

Post-Laminated Perforated Window Film

Post-lamination is great option for signwriters who may not have a laminator but still want the benefits of a laminated film. Here’s how Brenden tackles this approach:

• Apply the printed graphic to the window as usual.

• Use 6mm tenacious tape or a Yellotools Flexi Guide to cut an offset around the edge of the glass. This provides a surface for the laminate to adhere to.

• Apply the laminate with controlled, slow squeegee passes, maintaining tension in the film for a smooth finish.

 

Pro Tip:

When trimming, always cut along the bevelled edge of the glass for a clean, professional result.

 

Whether you’re looking for a quick application, enhanced durability, or a workaround for not having a laminator, these three techniques will help you achieve a high-quality result.