Window Film Installation and Removal
Discover tips for achieving the perfect install, removal and window cleaning for your next project. Whether you’re applying one of our perforated window films or an unperforated product, you can find instructions and videos below.
Still have questions? Reach out to our team.
Perforated Window Films
Click through the tabs for tips and instructions for every stage of your project.
For instructions on how to print & prepare Clear & Translucent White perforated window films clear read the instructions here.
Inside Window Film Installation is quick and easy with Contra Vision®
Surface Preparation
Surfaces to which the material will be applied must be thoroughly cleaned from dust grease or any contamination that could affect the adhesion of the material. Complete a second cleaning using mild soap and water to ensure the window is completely clean. Finally, rinse with water only and thoroughly dry the surface.
Using a Dry Application Method
Remember, when installing material on the inside of a window, the design side is applied facing the glass. We only recommend a dry application using a plastic applicator with a low friction sleeve. Avoid touching the adhesive, especially at the edges and corners and cut away the top 25 to 50 millimetres of the liner and begin application of the material on the window.
Start at the top using a core to maintain tension and remove the liner at a slow, steady pace as you work down, taking care not to stretch the graphic. Cut the graphic back from the edge of the window by one to three millimeters to ensure reliable edge adhesion.
Completion
Complete a final squeegee taking particular care with the edges and when you look at the film you should be able to see through the panel. The graphic should not be washed within 24 hours of application to allow the adhesive to reach a sufficient strength.
Joins
Let’s take a look at joins: firstly be sure to use a butt join. Tape the first panel onto the glass. Position the second panel to overlap and align the design then fix it in place.
Next, apply tape along the overlap and mark with horizontal lines then cut down the center of the tape making sure not to cut through the panels. Then, remove the positional tape and apply the first panel.
Position the second panel aligning horizontal markers and fix in place then apply the top 25 to 50 millimeters of this panel. Next, remove all the tape and apply the remainder of the second panel, cutting down the center of the overlap through both layers of material taking care not to scratch the glass and remove the trimmed excess material to form a clean butt join.
In summary:
- Clean your surface thoroughly and use a dry application method
- Remove the liner with care
- Avoid touching the adhesive
- Don’t wash the graphics for 24 hours
And that’s all there is to it! Now you’re ready to start applying Contra Vision Perforated Window Film.
Outside Window Film Installation is quick and easy with Contra Vision® Perforated Window Film.
Surface Preparation
Surfaces to which the material will be applied must be thoroughly cleaned from dust grease or any contamination that could affect the adhesion of the material. Complete a second cleaning using mild soap and water to ensure the window is completely clean. Finally, rinse with water only and thoroughly dry the surface.
Using a Dry Application Method
We only recommend a dry application using a plastic applicator with a low friction sleeve. Avoid touching the adhesive especially at the edges and corners and cut away the top 25 to 50 millimeters of the liner. Begin application of the material on the window starting at the top.
If your graphics are unlaminated, you can use a core to maintain tension otherwise just squeegee down evenly handling the graphic with care and ensuring that no bubbles are trapped. Cut the graphic back from the edge of the window by one to three millimeters to ensure reliable edge adhesion.
Completion
Complete a final squeegee taking particular care with the edges. The graphic should not be washed within 24 hours of application to allow the adhesive to reach a sufficient strength.
Joins
Firstly, be sure to use a butt join. Apply the first panel then take the second panel, cut away the top 25 to 50 millimeters of the liner and align the design of the first and second panels applying the second panel with overlap.
Cut down the center of the overlap through both layers of material taking care not to scratch the glass. Remove the trimmed excess film to form a clean butt join.
In summary:
- Clean your surface thoroughly
- Use a dry application method
- Remove the liner with care
- Avoid touching the adhesive
- Don’t wash the graphics for 24 hours
Window Film Removal is quick and easy with Contra Vision®.
Start in a top corner and use a knife to pick the edge until enough material is exposed to allow you to grip the material. Pull back steadily maintaining an even tension and once the material is removed, clean the window.
Due to the nature of perforated self-adhesive films, over time, dirt can accumulate in the holes. This can block and spoil the see-through vision effect.
It is important to note that we do not recommend cleaning Contra Vision® perforated window films within 24 hours after application. To keep your Contra Vision perforated window film clean and looking its best, follow this cleaning method:
Cleaning guidance for perforated window films
- Mix a solution of mild soap and sufficient water to produce plenty of suds.
- Apply the solution to the face of the applied film using a cloth or a sponge taking care when cleaning the edges and corner as all adhesive window films more vulnerable to damage in these areas if not edge sealed. Use sufficient solution to soften and wash out debris from the holes. Particularly stubborn blockages can be removed with a soft bristled brush.
- Gently wipe the perforated film wetted surface to remove settled dirt. Be careful not to scratch the ink layer if printed and only use very light pressure to avoid smearing any adhesive that may be present around the edges of the perorations.
- When you’re satisfied that the dirt in the holes is softened, wash off the soap solution with plenty of clean, soap-free water, again using the soft bristled brush to ensure that softened dirt and soap is removed from the holes.
- You can carefully blot the rinsed film to remove excess water or use a soft rubber bladed squeegee – excess water remaining in the perforations will evaporate or you can carefully use a Vacuum Squeegee. We suggest a Karcher WV5, or similar which is widely available from DIY outlets and depots.
General Information and precautions
Take care if you are working at height. Refer to relevant health and safety measures. Wear suitable personal protection measures such as safety glasses and gloves.
Do not use solvents or solvent based preparations such as alcohols and ammonia. Avoid any abrasive cleaning materials to tools. Dispose of packaging considerately and check local statutes regarding the use of cleaning materials and disposal of contaminated water.
Incorrect cleaning may lead to premature failure of the applied material.
Unperforated Window Films
Click through the tabs for tips and instructions for your unperforated window film project.
Contra Vision Non-Perforated Privacy Window Films including Frosted, Mirror and Reeded offer a trouble-free installation if you follow a few basic rules.
Important; Reeded films have a directional texture (the vertical “reeds”). If you rotate a panel 90° or 180°:
- The flutes will run in a different direction, changing the light‑diffusion and privacy effect.
- Adjacent panels will look mismatched, even if the pattern spacing is the same.
- When sunlight hits the glass, the rotated panel will reflect and refract differently, making the join very obvious.
When installing multiple panels next to one another always cut the same edge of the roll. Aim to ‘finish’ the previous flute to avoid changes in the pattern across the installation.
Preparation
- Clean the glass with mild soapy water* removing any dust, paint specs, grease or other contaminants.
- Complete a second cleaning if necessary and then rinse off with water only
- Thoroughly dry the surface before application
- Apply the film in temperatures between 10°C (50°F) and 30°C (90°F)
- Cut the film to the window size. Allow 20mm of excess material on all edges which can be trimmed later
- Use a spray bottle to apply a covering of water mixed with 2 drops of dish washing detergent
- Place your film on a flat surface. Carefully peel off the backing film. The film is very thin and care must be taken not to crease. Stick some tape on either side of a corner and peel the tape apart to start the process
- Spray the exposed (adhesive) surface of the film with the water/detergent. Lightly spray your hands to stop the film sticking to them
Application
- Carefully pick up the film and slide into position on your glass. Keep the film smooth. It will continue to move, providing the glass is wet. Reapply water if necessary
- Spray the film surface with application fluid, which will wash any dust that might scratch the surface and will help to avoid scratching the surface with the squeegee
Remove air bubbles and trim
- Use the plastic squeegee provided** smooth out the film, handling the material with care. Begin from the centre and work outwards in all directions. Ensure that no bubbles are trapped, especially at the edges
- As a last resort, remove any stubborn bubbles by gently popping them with a pin and rubbing
- Wipe away excess water. There may be some water marks left on the film, however this will dry/ evaporate over time
- To trim: Position the blade on the edge of the squeegee. Run the squeegee and the blade around the edges of the frame. Leave a 1-2mm gap around the edges to ensure reliable edge adhesion
Installed window films, whether inside or out, require periodic cleaning and this can be achieved with the same equipment, techniques and cleaning solutions that are used for glass with a little additional care. Avoid using abrasive cleaning products and aggressive solvents or ammonia-based preparations that could cause scratches or other damage, and use clean soft cloths, very soft brushes and silicone-edged squeegees.
- Using plenty of water and a gentle, soap-based cleaning agent, work up suds which will loosen and lift dirt deposits.
- Flush and gently squeegee away the excess liquid leaving a substantially dry and clean surface behind.
- Pay particular attention to framed edges, especially at the bottom, where soapy solution could accumulate and make sure this liquid is removed by blotting with an absorbing cloth or tissue.
The frequency of any cleaning needed is dictated by environmental factors. Applied films that face an exterior environment with lots of vehicles passing will of course accumulate more dirt and debris than films exposed to a traffic-free environment. In all cases, it’s preferable to clean at sensible intervals rather than wait until substantial amounts of dirt have accumulated.
Observe all sensible precautions when cleaning particularly when working at height. Dispose of cleaning materials responsibly and reuse where possible.
It is important to note that we do not recommend cleaning Contra Vision® window films within 10 days after application, to allow the window film to fully adhere and cure.
* Do not use window cleaning spray, as it can damage the film!
** Squeegee not included with samples



