What kinds of weight considerations are posed by the use of SPD-Smart products?
The incremental weight of SPD film is very small. Film thickness tends to range from just 13 to 17 mils. The SPD film is then laminated to glass or lightweight plastic substrates. The only other nominal weight gain is for the small gauge wiring and switches needed to operate SPD-Smart end-products. In some cases such as window applications, the minimal incremental weight of the film, wiring and switches likely will be more than offset by the weight reduction when blinds, shades or curtains are eliminated.
