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BlocFilm Silver 20 1 unit = 1.52m (5′) x 1.52m (5′)


69 in stock

BlocFilm Silver 20 EMF protection window film offers great shielding qualities through the cell tower range as well as all modern domestic & commercial wireless technologies such as Wi-Fi and smart appliances. It also offers RFID protection.


Fast delivery 48 hours

FREE UK Shipping On Orders Over £150

The BlocFilm Silver 20 is an EMF Protection Window Film that offers great EMF shielding qualities (see shielding chart) through the mobile mast range as well as from all modern domestic and commercial wireless technologies such as Wi-Fi and smart appliances. As a bonus, it offers great solar reduction and cooling in the summer, and heat retention in the winter. As you can see from the images, it creates a mirror effect on the outside, providing excellent privacy and extra security for you and your possessions, but visibility from the inside out is not compromised.


The film is relatively easy to fit, if you can hang wallpaper you shouldn’t struggle with window film. The film if fitted correctly will last for years and indeed if fitted by an approved fitter has 10-year warranty.

Our window films are a high-quality product from our EU-based manufacturing facilities. It comes with a 10-year warranty if applied by an approved fitter. We are committed to total customer satisfaction and offer a totally unquestioned and free return policy as long as the product has not been used or damaged. We provide a pick-up and full refund at our expense. We have been working in EMF protection since 2004 – we know what works and what doesn’t, so you can buy with confidence.


If you are a UK customer and suffer from Electrical Hypersensitivity (EHS), then you are eligible for full VAT relief on items for personal use such as Bed Canopies, Sleeping Bags & Bed Sheets. Click here for more details on disability under the Equality Act 2010.

Complete your order as normal and when you are ready to check out, select the Disability VAT Exemption option and fill in the form. The form will be saved in your customer profile and VAT will be automatically deducted in all your purchases. 

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If you have questions or doubts please send an email to: [email protected]