The definition:
Sputtering window film also named sputtering metalized window film, Built with a multi-layer magnetron sputtering process, it is known for its outstanding performance in long-lasting reflection and heat insulation.

The : reference
VLT:5%-70%
IR transmission:15%-20%
Thickness:1mil
Structure:1 Ply
Using time:about 1 year
Colour:black ,blue,green
The function:
High clear,high heat insulation,high stable ,low inner reflective,the colour is standard,no fade forever,and the using time is long.

The using:
It is used for the glass of the car and the building.