Installing self-adhesive PDLC film is one of the most common questions we receive. The process is more straightforward than most people think, but there are critical steps that determine the difference between a professional result and a failed attempt. In this guide, we share the entire process — including the most common mistakes to avoid.
Before You Start: Prerequisites
Self-adhesive PDLC film can be applied to most flat glass surfaces, but there are some prerequisites that must be met:
- •Flat surface: The glass must be flat. Curved glass, textured glass and patterned glass won't work.
- •Interior mounting: The film is always applied to the interior side of the glass.
- •Power connection: You need access to a power outlet within reasonable distance for the transformer.
- •Temperature: Install at room temperature (18–28°C). Cold surfaces prevent proper adhesion.
Step-by-Step Installation
Step 1: Cleaning — The Most Important Step
This step determines 80% of the final result. The glass must be absolutely free from dust, grease, fingerprints and cleaning residue.
Clean the glass at least twice. First with glass cleaner to remove visible dirt. Second with pure isopropanol (IPA) to eliminate all organic residue. Wipe with a clean microfibre cloth in one direction — not in circles. Check against light afterwards.
Step 2: Measuring and Cutting
Measure the exact glass dimensions. Cut the film 2–5 mm smaller than the glass measurements on each side. The film should not extend to the glass edge — this creates peeling problems over time.
Pay attention to busbar position (the copper strips that transfer current). These sit along the film's short side and must be accessible for electrical connection after installation.
Step 3: Application
Peel off the protective film from the adhesive side. Work in a dust-free environment — close windows and doors, turn off fans and ventilation if possible.
Start from the top and attach the film about 5 cm at a time. Use the squeegee to push air out ahead of you, always from centre toward edges. Work slowly and methodically.
Step 4: Air Bubbles
Small bubbles (under 3 mm) usually disappear on their own within 24–72 hours. Larger bubbles need to be addressed immediately by pushing air toward the nearest edge with the squeegee.
Step 5: Electrical Connection
Connect the busbars to the transformer (included with purchase). We always recommend that a qualified electrician makes the permanent electrical connection.
Common Mistakes to Avoid
❌ Insufficient cleaning
The single most common cause of failed results. Even invisible dust gets trapped under the film and shows as dots. Solution: clean three times, check against light.
❌ Installation in direct sunlight
Sunlight heats the glass and activates the adhesive prematurely. Solution: install morning, evening or on a cloudy day.
❌ Film cut too large
If the film extends beyond the glass edge, it begins to peel. Solution: always cut 2–5 mm smaller on each side.
❌ Wrong voltage
Connecting the film directly to 230V permanently damages it. Always use the included transformer.
Can the Film Be Removed?
Yes. Self-adhesive PDLC film can be removed without damaging the glass. Switch off the power, gently warm the adhesive with a hair dryer on low heat and pull the film slowly from one corner. Do not use a high-temperature heat gun – it can damage both film and glass. Any adhesive residue can be removed with isopropanol.
This means PDLC film is a non-permanent upgrade — perfect for tenants, temporary installations or projects where you want the option to reverse.
Professional Installation
Although installation is entirely possible as a DIY project, we offer professional installation in Stockholm. Outside Stockholm we ship film and kits across Sweden for self-installation. Contact us for a free assessment.
