Some of the heat from a radiator goes straight into the wall behind it. This foil sits between the radiator and the wall and reflects that heat back towards the room. It makes the most difference on radiators fitted to outside walls.
One roll is 60 cm wide and 3 m long (1.8 m²), enough for around three 1 m-wide radiators up to 60 cm tall. It cuts with household scissors and is hidden once fitted.
Why this foil
- Reflective on both sides, with an air-bubble core that adds a layer of insulation between the radiator and the wall.
- 97% light reflectance, independently tested by SGS.
- Water and corrosion resistant.
- Lightweight and flexible, with no glass fibre to irritate skin when you cut and fit it.
- Rated for temperatures from −50 °C to 80 °C.
How to fit it
- Turn the heating off and let the radiator cool.
- Measure the radiator and cut the foil slightly smaller, so it can't be seen from the front.
- Fix the foil to the wall behind the radiator with double-sided tape or adhesive pads (not included).
Specification
- Size: 60 cm × 3 m (1.8 m²)
- Thickness: 3 mm
- Construction: reflective metallised film on both sides with an air-bubble core
- Material: 0.037 mm VMPET/CPE film, 120 gsm polyethylene bubble, 0.037 mm VMPET/CPE film
- Temperature range: −50 °C to 80 °C
- Emissivity: 0.03–0.04
- Water vapour transmission: 0.012 g/m²·kPa
Independent test results (SGS)
- Light reflectance: 97% (ISO 9050)
- Thermal conductivity: 0.045 W/(m·K) (ASTM C518, at a mean temperature of 25.6 °C)
- Tensile strength: 9.97 N/mm width, with 140% elongation at break (ASTM D882)
- Restricted substances: lead, cadmium, mercury, hexavalent chromium, PBBs and PBDEs not detected (tested to RoHS limits)
