3M specular film DF2000MA is a polymeric film providing specular reflection with greater than 99% luminous reflectivity. This metal-free, non-corroding, and non-conducting product is well-suited for daylighting applications. It has a pressure sensitive adhesive for a secure bond and a polyethylene liner to protect its reflective surface during installation.
Optical Characteristics
- Phototopic reflectivity: >99%
- Reflected color/shift:
- CIE a*, b*: ≤ ±2
- CIE u, v: ≤ ±0.001
- Wavelengths absorbed: <400 nm
- Bandwidth, 90% reflectivity (0 to 80° angle of incidence): 400 nm to 775 nm
- Wavelengths transmitted (0 to 80° angle of incidence): >775 nm
- Usage angle: 0 to 90°
Physical Characteristics
- Film: polymeric
- Liner, adhesive: paper
- Adhesive: pressure-sensitive
- Width:
- Film and liners: 51 inches (130 cm)
- Adhesive: >49 inches (125 cm)
- Total density (film layer, adhesive and liners): 20 ft2/lb (4 m2/kg)
- Tensile strength (film layer): >35 lb/in (6.2 kg/cm)
- Total thickness (nominal): 8.1 mils (206 µm)
- Film: 2.6 mils (66 µm)
- Adhesive: 1.5 mils (38 µm)
- Liner, adhesive: 2.9 mils (74 µm)
- Liner, protective: 1.1 mils (28 µm)
- Elongation at break (film layer): >60%
- Modululs (film layer): >550 lb/in2 (39 kg/cm2)
- Heat shrinkage (film layer): <1% at 302°F (150°C), 15 minutes
Typical Normal Angle Spectral Response
