MT70E very light neutral Low-E UV Film

Low-E demonstration

How it works

Key Features

  • Museum-Grade UV filter
  • Exceptional winter heat retention
  • Additional summer heat reduction
  • Non-reflective, very pale neutral finish

About MT70E very light neutral Low-E UV Film


Sun-X MT70E is a revolutionary combination of museum-grade UV filtration, and exceptional improvement in the thermal efficiency of single glazing. It is also near-invisible from inside or out when installed, so is the ideal solution for historic and/or listed buildings who are looking to protect their interiors against sun damage, and save money and carbon emisisons by reducing heating output in winter. 

Sun-X has installed this film to a rooflight in Brighton Museum which was experiencing dramatic heat loss & heat gain, and high levels of UV radiation and visible light. Combined with Sun-X MT20 dark neutral filter externally, all of these problems have been solved, and allowed the museum to remove the old unsightly roof blind, opening up the roof space. 


Technical Data

  • Visible light transmission - 70%
  • Visible light reflection - 12%
  • Total solar energy rejected - 51%
  • U-Value 3.31 W/m2K (44% improvement on single glazing)
  • Emissivity 0.06 (94% radiant heat retained)
  • Ultraviolet transmission - <0.1%
  • UV content = 15 µW/lumen
  • Transmission relative to 550nm:
    320nm = 0.0%
    380nm = 0.7%
    400nm = 41%