FILMS
Mylar®
An extruded version of DuPont’s polyester fiber, Mylar is the most common film used in laminated sailcloth.
PEN Film
PEN film is an extruded version of PEN fiber. Just as PEN fiber is stronger than polyester fiber, PEN film is stronger than polyester (Mylar®) film. However, PEN film is rarely used in standard sailcloth styles because it shrinks more rapidly than Mylar®, is less resistant to abuse, and reduces the working life of the sail.
